./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-90.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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-90.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 018e436f7a98b5e0faa97a2819a6cebbd0a6f7e6f554350f973b951d0d48d577 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 14:12:33,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 14:12:34,012 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 14:12:34,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 14:12:34,018 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 14:12:34,037 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 14:12:34,038 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 14:12:34,039 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 14:12:34,039 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 14:12:34,040 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 14:12:34,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 14:12:34,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 14:12:34,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 14:12:34,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 14:12:34,042 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 14:12:34,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 14:12:34,043 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 14:12:34,043 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 14:12:34,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 14:12:34,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 14:12:34,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 14:12:34,046 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 14:12:34,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 14:12:34,047 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 14:12:34,047 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 14:12:34,047 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 14:12:34,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 14:12:34,047 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 14:12:34,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 14:12:34,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 14:12:34,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 14:12:34,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 14:12:34,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:12:34,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 14:12:34,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 14:12:34,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 14:12:34,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 14:12:34,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 14:12:34,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 14:12:34,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 14:12:34,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 14:12:34,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 14:12:34,051 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 018e436f7a98b5e0faa97a2819a6cebbd0a6f7e6f554350f973b951d0d48d577 [2024-10-14 14:12:34,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 14:12:34,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 14:12:34,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 14:12:34,271 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 14:12:34,271 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 14:12:34,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-90.i [2024-10-14 14:12:35,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 14:12:35,667 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 14:12:35,668 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-90.i [2024-10-14 14:12:35,678 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d471709/666455688b9440479b04ef3f193b0233/FLAG7ef042c3c [2024-10-14 14:12:36,054 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d471709/666455688b9440479b04ef3f193b0233 [2024-10-14 14:12:36,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 14:12:36,057 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 14:12:36,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 14:12:36,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 14:12:36,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 14:12:36,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:12:36" (1/1) ... [2024-10-14 14:12:36,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@381c8896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36, skipping insertion in model container [2024-10-14 14:12:36,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:12:36" (1/1) ... [2024-10-14 14:12:36,091 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 14:12:36,205 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-90.i[917,930] [2024-10-14 14:12:36,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:12:36,258 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 14:12:36,266 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-90.i[917,930] [2024-10-14 14:12:36,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:12:36,338 INFO L204 MainTranslator]: Completed translation [2024-10-14 14:12:36,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36 WrapperNode [2024-10-14 14:12:36,338 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 14:12:36,339 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 14:12:36,340 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 14:12:36,340 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 14:12:36,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36" (1/1) ... [2024-10-14 14:12:36,360 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36" (1/1) ... [2024-10-14 14:12:36,396 INFO L138 Inliner]: procedures = 26, calls = 162, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 478 [2024-10-14 14:12:36,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 14:12:36,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 14:12:36,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 14:12:36,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 14:12:36,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36" (1/1) ... [2024-10-14 14:12:36,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36" (1/1) ... [2024-10-14 14:12:36,411 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36" (1/1) ... [2024-10-14 14:12:36,429 INFO L175 MemorySlicer]: Split 130 memory accesses to 2 slices as follows [2, 128]. 98 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 15]. The 19 writes are split as follows [0, 19]. [2024-10-14 14:12:36,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36" (1/1) ... [2024-10-14 14:12:36,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36" (1/1) ... [2024-10-14 14:12:36,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36" (1/1) ... [2024-10-14 14:12:36,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36" (1/1) ... [2024-10-14 14:12:36,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36" (1/1) ... [2024-10-14 14:12:36,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36" (1/1) ... [2024-10-14 14:12:36,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 14:12:36,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 14:12:36,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 14:12:36,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 14:12:36,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36" (1/1) ... [2024-10-14 14:12:36,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:12:36,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:12:36,486 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) [2024-10-14 14:12:36,489 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 [2024-10-14 14:12:36,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 14:12:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 14:12:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 14:12:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 14:12:36,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 14:12:36,527 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 14:12:36,527 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 14:12:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 14:12:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 14:12:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 14:12:36,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 14:12:36,617 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 14:12:36,618 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 14:12:36,949 INFO L? ?]: Removed 112 outVars from TransFormulas that were not future-live. [2024-10-14 14:12:36,949 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 14:12:36,981 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 14:12:36,984 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 14:12:36,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:12:36 BoogieIcfgContainer [2024-10-14 14:12:36,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 14:12:36,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 14:12:36,987 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 14:12:36,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 14:12:36,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:12:36" (1/3) ... [2024-10-14 14:12:36,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35220f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:12:36, skipping insertion in model container [2024-10-14 14:12:36,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:12:36" (2/3) ... [2024-10-14 14:12:36,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35220f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:12:36, skipping insertion in model container [2024-10-14 14:12:36,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:12:36" (3/3) ... [2024-10-14 14:12:36,992 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-90.i [2024-10-14 14:12:37,003 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 14:12:37,004 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 14:12:37,055 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 14:12:37,059 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;@bdbe02d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 14:12:37,060 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 14:12:37,063 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:12:37,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 14:12:37,074 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:12:37,075 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:12:37,075 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:12:37,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:12:37,080 INFO L85 PathProgramCache]: Analyzing trace with hash 584961870, now seen corresponding path program 1 times [2024-10-14 14:12:37,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:12:37,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816041870] [2024-10-14 14:12:37,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:12:37,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:12:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:12:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:12:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:12:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:12:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:12:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:12:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:12:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:12:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:12:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:12:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:12:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:12:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:12:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:12:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:12:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:12:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:12:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:12:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:12:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:12:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,415 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:12:37,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:12:37,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816041870] [2024-10-14 14:12:37,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816041870] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:12:37,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:12:37,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 14:12:37,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445910862] [2024-10-14 14:12:37,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:12:37,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 14:12:37,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:12:37,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 14:12:37,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 14:12:37,476 INFO L87 Difference]: Start difference. First operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:12:37,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:12:37,542 INFO L93 Difference]: Finished difference Result 205 states and 326 transitions. [2024-10-14 14:12:37,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 14:12:37,544 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2024-10-14 14:12:37,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:12:37,553 INFO L225 Difference]: With dead ends: 205 [2024-10-14 14:12:37,553 INFO L226 Difference]: Without dead ends: 102 [2024-10-14 14:12:37,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 14:12:37,560 INFO L432 NwaCegarLoop]: 145 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, 145 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 [2024-10-14 14:12:37,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 14:12:37,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-10-14 14:12:37,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-10-14 14:12:37,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.3625) internal successors, (109), 80 states have internal predecessors, (109), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:12:37,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 149 transitions. [2024-10-14 14:12:37,606 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 149 transitions. Word has length 148 [2024-10-14 14:12:37,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:12:37,606 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 149 transitions. [2024-10-14 14:12:37,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:12:37,607 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 149 transitions. [2024-10-14 14:12:37,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 14:12:37,611 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:12:37,611 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:12:37,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 14:12:37,611 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:12:37,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:12:37,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2029456678, now seen corresponding path program 1 times [2024-10-14 14:12:37,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:12:37,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885707951] [2024-10-14 14:12:37,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:12:37,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:12:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:12:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:12:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:12:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:12:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:12:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:12:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:12:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:12:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:12:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:12:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:12:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:12:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:12:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:12:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:12:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:12:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:12:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:12:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:12:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:12:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:37,965 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:12:37,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:12:37,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885707951] [2024-10-14 14:12:37,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885707951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:12:37,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:12:37,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 14:12:37,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916097846] [2024-10-14 14:12:37,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:12:37,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 14:12:37,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:12:37,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 14:12:37,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 14:12:37,970 INFO L87 Difference]: Start difference. First operand 102 states and 149 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:12:38,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:12:38,019 INFO L93 Difference]: Finished difference Result 205 states and 300 transitions. [2024-10-14 14:12:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 14:12:38,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2024-10-14 14:12:38,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:12:38,022 INFO L225 Difference]: With dead ends: 205 [2024-10-14 14:12:38,023 INFO L226 Difference]: Without dead ends: 104 [2024-10-14 14:12:38,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 14:12:38,025 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 14:12:38,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 14:12:38,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-14 14:12:38,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-10-14 14:12:38,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 82 states have (on average 1.353658536585366) internal successors, (111), 82 states have internal predecessors, (111), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:12:38,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 151 transitions. [2024-10-14 14:12:38,037 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 151 transitions. Word has length 148 [2024-10-14 14:12:38,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:12:38,039 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 151 transitions. [2024-10-14 14:12:38,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:12:38,039 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 151 transitions. [2024-10-14 14:12:38,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 14:12:38,042 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:12:38,042 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:12:38,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 14:12:38,042 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:12:38,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:12:38,043 INFO L85 PathProgramCache]: Analyzing trace with hash 737193547, now seen corresponding path program 1 times [2024-10-14 14:12:38,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:12:38,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681561278] [2024-10-14 14:12:38,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:12:38,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:12:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:12:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:12:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:12:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:12:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:12:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:12:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:12:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:12:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:12:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:12:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:12:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:12:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:12:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:12:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:12:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:12:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:12:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:12:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:12:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:12:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:38,685 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:12:38,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:12:38,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681561278] [2024-10-14 14:12:38,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681561278] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:12:38,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:12:38,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 14:12:38,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988386821] [2024-10-14 14:12:38,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:12:38,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:12:38,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:12:38,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:12:38,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 14:12:38,687 INFO L87 Difference]: Start difference. First operand 104 states and 151 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:12:38,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:12:38,915 INFO L93 Difference]: Finished difference Result 214 states and 311 transitions. [2024-10-14 14:12:38,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 14:12:38,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-14 14:12:38,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:12:38,918 INFO L225 Difference]: With dead ends: 214 [2024-10-14 14:12:38,919 INFO L226 Difference]: Without dead ends: 111 [2024-10-14 14:12:38,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-14 14:12:38,920 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 109 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 14:12:38,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 388 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 14:12:38,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-10-14 14:12:38,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2024-10-14 14:12:38,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 87 states have internal predecessors, (117), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:12:38,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2024-10-14 14:12:38,937 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 150 [2024-10-14 14:12:38,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:12:38,939 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2024-10-14 14:12:38,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:12:38,940 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2024-10-14 14:12:38,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 14:12:38,941 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:12:38,941 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:12:38,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 14:12:38,942 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:12:38,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:12:38,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1159895373, now seen corresponding path program 1 times [2024-10-14 14:12:38,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:12:38,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153523691] [2024-10-14 14:12:38,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:12:38,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:12:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:12:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:12:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:12:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:12:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:12:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:12:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:12:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:12:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:12:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:12:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:12:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:12:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:12:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:12:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:12:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:12:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:12:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:12:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:12:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:12:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:39,633 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:12:39,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:12:39,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153523691] [2024-10-14 14:12:39,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153523691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:12:39,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:12:39,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 14:12:39,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526222403] [2024-10-14 14:12:39,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:12:39,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 14:12:39,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:12:39,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 14:12:39,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 14:12:39,637 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:12:39,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:12:39,971 INFO L93 Difference]: Finished difference Result 252 states and 362 transitions. [2024-10-14 14:12:39,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:12:39,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-14 14:12:39,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:12:39,973 INFO L225 Difference]: With dead ends: 252 [2024-10-14 14:12:39,975 INFO L226 Difference]: Without dead ends: 144 [2024-10-14 14:12:39,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 14:12:39,976 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 188 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 14:12:39,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 338 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 14:12:39,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-10-14 14:12:39,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 111. [2024-10-14 14:12:39,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 89 states have internal predecessors, (119), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:12:39,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2024-10-14 14:12:39,991 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 150 [2024-10-14 14:12:39,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:12:39,992 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2024-10-14 14:12:39,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:12:39,993 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2024-10-14 14:12:39,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-14 14:12:39,997 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:12:39,997 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:12:39,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 14:12:39,997 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:12:39,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:12:39,998 INFO L85 PathProgramCache]: Analyzing trace with hash -685099385, now seen corresponding path program 1 times [2024-10-14 14:12:39,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:12:39,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822147606] [2024-10-14 14:12:39,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:12:39,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:12:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:12:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:12:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:12:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:12:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:12:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:12:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:12:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:12:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:12:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:12:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:12:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:12:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:12:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:12:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:12:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:12:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:12:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:12:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:12:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:12:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:12:40,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:12:40,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822147606] [2024-10-14 14:12:40,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822147606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:12:40,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:12:40,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 14:12:40,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737150014] [2024-10-14 14:12:40,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:12:40,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 14:12:40,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:12:40,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 14:12:40,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-14 14:12:40,877 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:12:41,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:12:41,404 INFO L93 Difference]: Finished difference Result 280 states and 400 transitions. [2024-10-14 14:12:41,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 14:12:41,405 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 151 [2024-10-14 14:12:41,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:12:41,406 INFO L225 Difference]: With dead ends: 280 [2024-10-14 14:12:41,406 INFO L226 Difference]: Without dead ends: 170 [2024-10-14 14:12:41,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-10-14 14:12:41,407 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 169 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 14:12:41,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 379 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 14:12:41,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-10-14 14:12:41,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 132. [2024-10-14 14:12:41,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 110 states have (on average 1.3545454545454545) internal successors, (149), 110 states have internal predecessors, (149), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:12:41,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 189 transitions. [2024-10-14 14:12:41,417 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 189 transitions. Word has length 151 [2024-10-14 14:12:41,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:12:41,417 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 189 transitions. [2024-10-14 14:12:41,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:12:41,418 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 189 transitions. [2024-10-14 14:12:41,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-14 14:12:41,419 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:12:41,419 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:12:41,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 14:12:41,419 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:12:41,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:12:41,419 INFO L85 PathProgramCache]: Analyzing trace with hash -943264823, now seen corresponding path program 1 times [2024-10-14 14:12:41,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:12:41,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316701153] [2024-10-14 14:12:41,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:12:41,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:12:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:12:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:12:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:12:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:12:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:12:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:12:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:12:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:12:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:12:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:12:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:12:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:12:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:12:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:12:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:12:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:12:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:12:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:12:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:12:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:12:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:42,405 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:12:42,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:12:42,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316701153] [2024-10-14 14:12:42,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316701153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:12:42,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:12:42,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 14:12:42,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504038117] [2024-10-14 14:12:42,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:12:42,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 14:12:42,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:12:42,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 14:12:42,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 14:12:42,408 INFO L87 Difference]: Start difference. First operand 132 states and 189 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:12:42,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:12:42,749 INFO L93 Difference]: Finished difference Result 318 states and 453 transitions. [2024-10-14 14:12:42,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:12:42,749 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 151 [2024-10-14 14:12:42,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:12:42,751 INFO L225 Difference]: With dead ends: 318 [2024-10-14 14:12:42,751 INFO L226 Difference]: Without dead ends: 187 [2024-10-14 14:12:42,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-14 14:12:42,752 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 201 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 14:12:42,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 538 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 14:12:42,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-10-14 14:12:42,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 151. [2024-10-14 14:12:42,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 129 states have (on average 1.3565891472868217) internal successors, (175), 129 states have internal predecessors, (175), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:12:42,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 215 transitions. [2024-10-14 14:12:42,762 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 215 transitions. Word has length 151 [2024-10-14 14:12:42,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:12:42,763 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 215 transitions. [2024-10-14 14:12:42,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:12:42,763 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 215 transitions. [2024-10-14 14:12:42,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 14:12:42,764 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:12:42,764 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:12:42,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 14:12:42,764 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:12:42,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:12:42,765 INFO L85 PathProgramCache]: Analyzing trace with hash 370204746, now seen corresponding path program 1 times [2024-10-14 14:12:42,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:12:42,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022626939] [2024-10-14 14:12:42,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:12:42,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:12:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:12:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:12:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:12:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:12:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:12:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:12:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:12:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:12:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:12:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:12:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:12:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:12:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:12:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:12:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:12:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:12:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:12:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:12:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:12:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:12:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:12:43,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:12:43,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022626939] [2024-10-14 14:12:43,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022626939] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:12:43,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:12:43,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 14:12:43,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790785492] [2024-10-14 14:12:43,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:12:43,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 14:12:43,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:12:43,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 14:12:43,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-14 14:12:43,639 INFO L87 Difference]: Start difference. First operand 151 states and 215 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:12:44,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:12:44,240 INFO L93 Difference]: Finished difference Result 359 states and 509 transitions. [2024-10-14 14:12:44,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 14:12:44,242 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 152 [2024-10-14 14:12:44,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:12:44,244 INFO L225 Difference]: With dead ends: 359 [2024-10-14 14:12:44,244 INFO L226 Difference]: Without dead ends: 209 [2024-10-14 14:12:44,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-10-14 14:12:44,245 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 463 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 14:12:44,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 341 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 14:12:44,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-10-14 14:12:44,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 166. [2024-10-14 14:12:44,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 144 states have (on average 1.3611111111111112) internal successors, (196), 144 states have internal predecessors, (196), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:12:44,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 236 transitions. [2024-10-14 14:12:44,257 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 236 transitions. Word has length 152 [2024-10-14 14:12:44,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:12:44,257 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 236 transitions. [2024-10-14 14:12:44,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:12:44,257 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 236 transitions. [2024-10-14 14:12:44,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 14:12:44,258 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:12:44,259 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:12:44,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 14:12:44,259 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:12:44,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:12:44,259 INFO L85 PathProgramCache]: Analyzing trace with hash 112039308, now seen corresponding path program 1 times [2024-10-14 14:12:44,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:12:44,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677192141] [2024-10-14 14:12:44,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:12:44,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:12:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:12:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:12:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:12:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:12:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:12:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:12:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:12:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:12:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:12:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:12:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:12:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:12:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:12:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:12:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:12:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:12:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:12:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:12:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:12:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:12:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:45,688 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:12:45,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:12:45,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677192141] [2024-10-14 14:12:45,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677192141] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:12:45,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:12:45,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 14:12:45,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322888280] [2024-10-14 14:12:45,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:12:45,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 14:12:45,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:12:45,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 14:12:45,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-14 14:12:45,691 INFO L87 Difference]: Start difference. First operand 166 states and 236 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:12:46,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:12:46,468 INFO L93 Difference]: Finished difference Result 404 states and 571 transitions. [2024-10-14 14:12:46,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 14:12:46,468 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-10-14 14:12:46,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:12:46,469 INFO L225 Difference]: With dead ends: 404 [2024-10-14 14:12:46,469 INFO L226 Difference]: Without dead ends: 239 [2024-10-14 14:12:46,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-10-14 14:12:46,471 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 204 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 14:12:46,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 795 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 14:12:46,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-10-14 14:12:46,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 139. [2024-10-14 14:12:46,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 117 states have (on average 1.3504273504273505) internal successors, (158), 117 states have internal predecessors, (158), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:12:46,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 198 transitions. [2024-10-14 14:12:46,483 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 198 transitions. Word has length 152 [2024-10-14 14:12:46,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:12:46,483 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 198 transitions. [2024-10-14 14:12:46,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:12:46,483 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 198 transitions. [2024-10-14 14:12:46,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 14:12:46,484 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:12:46,484 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:12:46,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 14:12:46,485 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:12:46,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:12:46,485 INFO L85 PathProgramCache]: Analyzing trace with hash 372292528, now seen corresponding path program 1 times [2024-10-14 14:12:46,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:12:46,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971086014] [2024-10-14 14:12:46,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:12:46,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:12:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:12:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:12:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:12:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:12:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:12:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:12:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:12:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:12:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:12:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:12:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:12:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:12:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:12:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:12:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:12:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:12:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:12:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:12:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:12:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:12:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:48,751 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:12:48,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:12:48,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971086014] [2024-10-14 14:12:48,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971086014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:12:48,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:12:48,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-14 14:12:48,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665861257] [2024-10-14 14:12:48,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:12:48,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 14:12:48,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:12:48,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 14:12:48,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2024-10-14 14:12:48,754 INFO L87 Difference]: Start difference. First operand 139 states and 198 transitions. Second operand has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-14 14:12:49,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:12:49,992 INFO L93 Difference]: Finished difference Result 320 states and 455 transitions. [2024-10-14 14:12:49,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 14:12:49,993 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 152 [2024-10-14 14:12:49,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:12:49,994 INFO L225 Difference]: With dead ends: 320 [2024-10-14 14:12:49,994 INFO L226 Difference]: Without dead ends: 182 [2024-10-14 14:12:49,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812 [2024-10-14 14:12:49,995 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 423 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 14:12:49,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 667 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 14:12:49,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-10-14 14:12:50,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 144. [2024-10-14 14:12:50,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 122 states have (on average 1.3524590163934427) internal successors, (165), 122 states have internal predecessors, (165), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:12:50,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 205 transitions. [2024-10-14 14:12:50,016 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 205 transitions. Word has length 152 [2024-10-14 14:12:50,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:12:50,016 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 205 transitions. [2024-10-14 14:12:50,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-14 14:12:50,017 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 205 transitions. [2024-10-14 14:12:50,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 14:12:50,018 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:12:50,018 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:12:50,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 14:12:50,018 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:12:50,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:12:50,018 INFO L85 PathProgramCache]: Analyzing trace with hash -214513486, now seen corresponding path program 1 times [2024-10-14 14:12:50,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:12:50,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049828020] [2024-10-14 14:12:50,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:12:50,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:12:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:12:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:12:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:12:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:12:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:12:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:12:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:12:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:12:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:12:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:12:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:12:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:12:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:12:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:12:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:12:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:12:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:12:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:12:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:12:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:12:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:52,278 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:12:52,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:12:52,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049828020] [2024-10-14 14:12:52,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049828020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:12:52,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:12:52,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 14:12:52,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876259898] [2024-10-14 14:12:52,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:12:52,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 14:12:52,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:12:52,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 14:12:52,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-10-14 14:12:52,280 INFO L87 Difference]: Start difference. First operand 144 states and 205 transitions. Second operand has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-14 14:12:53,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:12:53,045 INFO L93 Difference]: Finished difference Result 320 states and 455 transitions. [2024-10-14 14:12:53,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 14:12:53,046 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 152 [2024-10-14 14:12:53,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:12:53,047 INFO L225 Difference]: With dead ends: 320 [2024-10-14 14:12:53,048 INFO L226 Difference]: Without dead ends: 177 [2024-10-14 14:12:53,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2024-10-14 14:12:53,048 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 517 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 14:12:53,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 506 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 14:12:53,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-10-14 14:12:53,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 144. [2024-10-14 14:12:53,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 122 states have (on average 1.3442622950819672) internal successors, (164), 122 states have internal predecessors, (164), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:12:53,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 204 transitions. [2024-10-14 14:12:53,060 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 204 transitions. Word has length 152 [2024-10-14 14:12:53,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:12:53,061 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 204 transitions. [2024-10-14 14:12:53,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-14 14:12:53,061 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 204 transitions. [2024-10-14 14:12:53,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 14:12:53,062 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:12:53,062 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:12:53,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 14:12:53,062 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:12:53,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:12:53,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1216055374, now seen corresponding path program 1 times [2024-10-14 14:12:53,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:12:53,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667693002] [2024-10-14 14:12:53,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:12:53,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:12:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:12:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:12:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:12:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:12:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:12:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:12:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:12:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:12:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:12:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:12:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:12:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:12:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:12:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:12:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:12:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:12:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:12:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:12:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:12:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:12:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:54,808 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:12:54,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:12:54,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667693002] [2024-10-14 14:12:54,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667693002] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:12:54,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:12:54,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 14:12:54,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002183618] [2024-10-14 14:12:54,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:12:54,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 14:12:54,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:12:54,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 14:12:54,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-10-14 14:12:54,810 INFO L87 Difference]: Start difference. First operand 144 states and 204 transitions. Second operand has 16 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 16 states have internal predecessors, (55), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-14 14:12:55,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:12:55,409 INFO L93 Difference]: Finished difference Result 320 states and 453 transitions. [2024-10-14 14:12:55,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 14:12:55,409 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 16 states have internal predecessors, (55), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 152 [2024-10-14 14:12:55,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:12:55,410 INFO L225 Difference]: With dead ends: 320 [2024-10-14 14:12:55,410 INFO L226 Difference]: Without dead ends: 177 [2024-10-14 14:12:55,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2024-10-14 14:12:55,411 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 386 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 14:12:55,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 434 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 14:12:55,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-10-14 14:12:55,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 144. [2024-10-14 14:12:55,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 122 states have (on average 1.3360655737704918) internal successors, (163), 122 states have internal predecessors, (163), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:12:55,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 203 transitions. [2024-10-14 14:12:55,423 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 203 transitions. Word has length 152 [2024-10-14 14:12:55,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:12:55,423 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 203 transitions. [2024-10-14 14:12:55,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 16 states have internal predecessors, (55), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-14 14:12:55,423 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 203 transitions. [2024-10-14 14:12:55,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 14:12:55,424 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:12:55,424 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:12:55,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 14:12:55,425 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:12:55,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:12:55,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1802861388, now seen corresponding path program 1 times [2024-10-14 14:12:55,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:12:55,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706748615] [2024-10-14 14:12:55,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:12:55,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:12:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:12:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:12:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:12:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:12:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:12:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:12:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:12:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:12:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:12:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:12:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:12:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:12:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:12:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:12:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:12:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:12:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:12:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:12:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:12:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:12:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:12:58,592 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:12:58,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:12:58,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706748615] [2024-10-14 14:12:58,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706748615] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:12:58,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:12:58,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-10-14 14:12:58,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886390454] [2024-10-14 14:12:58,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:12:58,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-14 14:12:58,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:12:58,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-14 14:12:58,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2024-10-14 14:12:58,593 INFO L87 Difference]: Start difference. First operand 144 states and 203 transitions. Second operand has 24 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 24 states have internal predecessors, (55), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-14 14:13:01,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:01,553 INFO L93 Difference]: Finished difference Result 603 states and 840 transitions. [2024-10-14 14:13:01,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-14 14:13:01,554 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 24 states have internal predecessors, (55), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 152 [2024-10-14 14:13:01,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:01,556 INFO L225 Difference]: With dead ends: 603 [2024-10-14 14:13:01,556 INFO L226 Difference]: Without dead ends: 460 [2024-10-14 14:13:01,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=308, Invalid=1672, Unknown=0, NotChecked=0, Total=1980 [2024-10-14 14:13:01,557 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 879 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 2240 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 2240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:01,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 1478 Invalid, 2436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 2240 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 14:13:01,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-10-14 14:13:01,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 215. [2024-10-14 14:13:01,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 172 states have (on average 1.308139534883721) internal successors, (225), 172 states have internal predecessors, (225), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-14 14:13:01,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 305 transitions. [2024-10-14 14:13:01,589 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 305 transitions. Word has length 152 [2024-10-14 14:13:01,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:01,591 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 305 transitions. [2024-10-14 14:13:01,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 24 states have internal predecessors, (55), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-14 14:13:01,591 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 305 transitions. [2024-10-14 14:13:01,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 14:13:01,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:01,592 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:01,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 14:13:01,592 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:01,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:01,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1780229134, now seen corresponding path program 1 times [2024-10-14 14:13:01,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:01,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032384736] [2024-10-14 14:13:01,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:01,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:02,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:02,836 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:02,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:02,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032384736] [2024-10-14 14:13:02,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032384736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:02,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:02,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 14:13:02,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435127929] [2024-10-14 14:13:02,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:02,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 14:13:02,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:02,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 14:13:02,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-10-14 14:13:02,839 INFO L87 Difference]: Start difference. First operand 215 states and 305 transitions. Second operand has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:03,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:03,994 INFO L93 Difference]: Finished difference Result 563 states and 788 transitions. [2024-10-14 14:13:03,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 14:13:03,994 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-10-14 14:13:03,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:03,996 INFO L225 Difference]: With dead ends: 563 [2024-10-14 14:13:03,996 INFO L226 Difference]: Without dead ends: 420 [2024-10-14 14:13:03,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=165, Invalid=765, Unknown=0, NotChecked=0, Total=930 [2024-10-14 14:13:03,997 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 497 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:03,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1254 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 14:13:03,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-10-14 14:13:04,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 230. [2024-10-14 14:13:04,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 187 states have (on average 1.3262032085561497) internal successors, (248), 187 states have internal predecessors, (248), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-14 14:13:04,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 328 transitions. [2024-10-14 14:13:04,022 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 328 transitions. Word has length 152 [2024-10-14 14:13:04,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:04,023 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 328 transitions. [2024-10-14 14:13:04,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:04,023 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 328 transitions. [2024-10-14 14:13:04,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 14:13:04,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:04,024 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:04,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 14:13:04,024 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:04,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:04,024 INFO L85 PathProgramCache]: Analyzing trace with hash 846795601, now seen corresponding path program 1 times [2024-10-14 14:13:04,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:04,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310363259] [2024-10-14 14:13:04,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:04,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:05,972 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:05,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:05,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310363259] [2024-10-14 14:13:05,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310363259] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:05,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:05,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-14 14:13:05,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341269062] [2024-10-14 14:13:05,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:05,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-14 14:13:05,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:05,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-14 14:13:05,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2024-10-14 14:13:05,974 INFO L87 Difference]: Start difference. First operand 230 states and 328 transitions. Second operand has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-14 14:13:07,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:07,532 INFO L93 Difference]: Finished difference Result 581 states and 808 transitions. [2024-10-14 14:13:07,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-14 14:13:07,532 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 153 [2024-10-14 14:13:07,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:07,534 INFO L225 Difference]: With dead ends: 581 [2024-10-14 14:13:07,534 INFO L226 Difference]: Without dead ends: 438 [2024-10-14 14:13:07,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=246, Invalid=1086, Unknown=0, NotChecked=0, Total=1332 [2024-10-14 14:13:07,535 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 632 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:07,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1124 Invalid, 1926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 14:13:07,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-10-14 14:13:07,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 297. [2024-10-14 14:13:07,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 250 states have (on average 1.324) internal successors, (331), 251 states have internal predecessors, (331), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 14:13:07,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 415 transitions. [2024-10-14 14:13:07,568 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 415 transitions. Word has length 153 [2024-10-14 14:13:07,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:07,568 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 415 transitions. [2024-10-14 14:13:07,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-14 14:13:07,568 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 415 transitions. [2024-10-14 14:13:07,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 14:13:07,569 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:07,569 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:07,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 14:13:07,569 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:07,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:07,569 INFO L85 PathProgramCache]: Analyzing trace with hash 669016196, now seen corresponding path program 1 times [2024-10-14 14:13:07,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:07,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164875947] [2024-10-14 14:13:07,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:07,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:07,887 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:07,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:07,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164875947] [2024-10-14 14:13:07,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164875947] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:07,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:07,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 14:13:07,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92695402] [2024-10-14 14:13:07,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:07,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 14:13:07,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:07,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 14:13:07,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 14:13:07,889 INFO L87 Difference]: Start difference. First operand 297 states and 415 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:08,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:08,218 INFO L93 Difference]: Finished difference Result 570 states and 798 transitions. [2024-10-14 14:13:08,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 14:13:08,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-14 14:13:08,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:08,222 INFO L225 Difference]: With dead ends: 570 [2024-10-14 14:13:08,222 INFO L226 Difference]: Without dead ends: 389 [2024-10-14 14:13:08,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-14 14:13:08,223 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 154 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:08,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 532 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 14:13:08,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-10-14 14:13:08,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 315. [2024-10-14 14:13:08,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 268 states have (on average 1.3134328358208955) internal successors, (352), 269 states have internal predecessors, (352), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 14:13:08,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 436 transitions. [2024-10-14 14:13:08,254 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 436 transitions. Word has length 153 [2024-10-14 14:13:08,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:08,255 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 436 transitions. [2024-10-14 14:13:08,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:08,255 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 436 transitions. [2024-10-14 14:13:08,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 14:13:08,256 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:08,256 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:08,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 14:13:08,256 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:08,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:08,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1680575609, now seen corresponding path program 1 times [2024-10-14 14:13:08,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:08,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998551143] [2024-10-14 14:13:08,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:08,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:08,970 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:08,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:08,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998551143] [2024-10-14 14:13:08,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998551143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:08,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:08,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 14:13:08,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190358273] [2024-10-14 14:13:08,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:08,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 14:13:08,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:08,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 14:13:08,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-14 14:13:08,972 INFO L87 Difference]: Start difference. First operand 315 states and 436 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:09,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:09,324 INFO L93 Difference]: Finished difference Result 636 states and 883 transitions. [2024-10-14 14:13:09,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:13:09,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-14 14:13:09,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:09,327 INFO L225 Difference]: With dead ends: 636 [2024-10-14 14:13:09,327 INFO L226 Difference]: Without dead ends: 451 [2024-10-14 14:13:09,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 14:13:09,327 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 228 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:09,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 346 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 14:13:09,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-10-14 14:13:09,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 350. [2024-10-14 14:13:09,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 303 states have (on average 1.3234323432343233) internal successors, (401), 304 states have internal predecessors, (401), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 14:13:09,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 485 transitions. [2024-10-14 14:13:09,362 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 485 transitions. Word has length 153 [2024-10-14 14:13:09,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:09,362 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 485 transitions. [2024-10-14 14:13:09,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:09,362 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 485 transitions. [2024-10-14 14:13:09,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 14:13:09,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:09,363 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:09,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 14:13:09,364 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:09,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:09,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1603274437, now seen corresponding path program 1 times [2024-10-14 14:13:09,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:09,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431304330] [2024-10-14 14:13:09,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:09,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:09,773 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:09,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:09,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431304330] [2024-10-14 14:13:09,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431304330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:09,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:09,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 14:13:09,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450184343] [2024-10-14 14:13:09,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:09,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 14:13:09,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:09,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 14:13:09,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-14 14:13:09,774 INFO L87 Difference]: Start difference. First operand 350 states and 485 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:10,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:10,132 INFO L93 Difference]: Finished difference Result 641 states and 888 transitions. [2024-10-14 14:13:10,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:13:10,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 153 [2024-10-14 14:13:10,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:10,134 INFO L225 Difference]: With dead ends: 641 [2024-10-14 14:13:10,134 INFO L226 Difference]: Without dead ends: 437 [2024-10-14 14:13:10,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-10-14 14:13:10,137 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 377 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:10,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 364 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 14:13:10,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-10-14 14:13:10,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 367. [2024-10-14 14:13:10,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 320 states have (on average 1.321875) internal successors, (423), 321 states have internal predecessors, (423), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 14:13:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 507 transitions. [2024-10-14 14:13:10,176 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 507 transitions. Word has length 153 [2024-10-14 14:13:10,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:10,177 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 507 transitions. [2024-10-14 14:13:10,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:10,177 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 507 transitions. [2024-10-14 14:13:10,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 14:13:10,177 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:10,178 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:10,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 14:13:10,178 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:10,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:10,178 INFO L85 PathProgramCache]: Analyzing trace with hash 535002690, now seen corresponding path program 1 times [2024-10-14 14:13:10,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:10,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075209546] [2024-10-14 14:13:10,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:10,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:10,742 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:10,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:10,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075209546] [2024-10-14 14:13:10,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075209546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:10,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:10,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 14:13:10,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297932350] [2024-10-14 14:13:10,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:10,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 14:13:10,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:10,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 14:13:10,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-14 14:13:10,743 INFO L87 Difference]: Start difference. First operand 367 states and 507 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:11,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:11,165 INFO L93 Difference]: Finished difference Result 702 states and 967 transitions. [2024-10-14 14:13:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 14:13:11,166 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-14 14:13:11,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:11,168 INFO L225 Difference]: With dead ends: 702 [2024-10-14 14:13:11,168 INFO L226 Difference]: Without dead ends: 486 [2024-10-14 14:13:11,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-14 14:13:11,169 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 172 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:11,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 435 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 14:13:11,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-10-14 14:13:11,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 420. [2024-10-14 14:13:11,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 373 states have (on average 1.3109919571045576) internal successors, (489), 374 states have internal predecessors, (489), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 14:13:11,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 573 transitions. [2024-10-14 14:13:11,207 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 573 transitions. Word has length 153 [2024-10-14 14:13:11,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:11,208 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 573 transitions. [2024-10-14 14:13:11,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:11,208 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 573 transitions. [2024-10-14 14:13:11,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 14:13:11,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:11,209 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:11,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 14:13:11,209 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:11,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:11,209 INFO L85 PathProgramCache]: Analyzing trace with hash 276837252, now seen corresponding path program 1 times [2024-10-14 14:13:11,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:11,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73049063] [2024-10-14 14:13:11,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:11,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:11,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:11,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:11,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73049063] [2024-10-14 14:13:11,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73049063] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:11,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:11,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 14:13:11,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980409405] [2024-10-14 14:13:11,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:11,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 14:13:11,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:11,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 14:13:11,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 14:13:11,615 INFO L87 Difference]: Start difference. First operand 420 states and 573 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:11,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:11,912 INFO L93 Difference]: Finished difference Result 734 states and 1007 transitions. [2024-10-14 14:13:11,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:13:11,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-14 14:13:11,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:11,915 INFO L225 Difference]: With dead ends: 734 [2024-10-14 14:13:11,915 INFO L226 Difference]: Without dead ends: 478 [2024-10-14 14:13:11,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-14 14:13:11,916 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 270 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:11,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 325 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 14:13:11,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-10-14 14:13:11,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 388. [2024-10-14 14:13:11,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 341 states have (on average 1.2991202346041055) internal successors, (443), 342 states have internal predecessors, (443), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 14:13:11,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 527 transitions. [2024-10-14 14:13:11,950 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 527 transitions. Word has length 153 [2024-10-14 14:13:11,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:11,950 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 527 transitions. [2024-10-14 14:13:11,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:11,950 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 527 transitions. [2024-10-14 14:13:11,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 14:13:11,951 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:11,951 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:11,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 14:13:11,951 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:11,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:11,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1722753856, now seen corresponding path program 1 times [2024-10-14 14:13:11,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:11,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764396887] [2024-10-14 14:13:11,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:11,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:13,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:13,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:13,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:13,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:13,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:13,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:13,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:13,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:14,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:14,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:14,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:14,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:14,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:14,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:14,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:14,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:14,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:14,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:14,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:14,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:14,067 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 21 proven. 36 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-14 14:13:14,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:14,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764396887] [2024-10-14 14:13:14,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764396887] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 14:13:14,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352577643] [2024-10-14 14:13:14,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:14,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:13:14,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:13:14,069 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) [2024-10-14 14:13:14,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 14:13:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:14,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-14 14:13:14,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 14:13:14,868 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 [2024-10-14 14:13:15,169 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 25 treesize of output 13 [2024-10-14 14:13:15,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:13:15,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:13:15,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:13:16,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 14:13:16,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:13:16,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:13:16,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2024-10-14 14:13:16,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:13:16,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:13:16,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 14:13:16,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 20 [2024-10-14 14:13:16,356 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 384 proven. 186 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-10-14 14:13:16,356 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 14:13:16,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352577643] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 14:13:16,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 14:13:16,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 13] total 34 [2024-10-14 14:13:16,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299774191] [2024-10-14 14:13:16,632 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 14:13:16,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-14 14:13:16,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:16,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-14 14:13:16,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1293, Unknown=0, NotChecked=0, Total=1406 [2024-10-14 14:13:16,634 INFO L87 Difference]: Start difference. First operand 388 states and 527 transitions. Second operand has 34 states, 29 states have (on average 4.172413793103448) internal successors, (121), 34 states have internal predecessors, (121), 13 states have call successors, (40), 5 states have call predecessors, (40), 8 states have return successors, (40), 8 states have call predecessors, (40), 13 states have call successors, (40) [2024-10-14 14:13:22,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:22,746 INFO L93 Difference]: Finished difference Result 915 states and 1217 transitions. [2024-10-14 14:13:22,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-10-14 14:13:22,747 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 29 states have (on average 4.172413793103448) internal successors, (121), 34 states have internal predecessors, (121), 13 states have call successors, (40), 5 states have call predecessors, (40), 8 states have return successors, (40), 8 states have call predecessors, (40), 13 states have call successors, (40) Word has length 153 [2024-10-14 14:13:22,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:22,749 INFO L225 Difference]: With dead ends: 915 [2024-10-14 14:13:22,749 INFO L226 Difference]: Without dead ends: 622 [2024-10-14 14:13:22,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 237 SyntacticMatches, 3 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2713 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1103, Invalid=8797, Unknown=0, NotChecked=0, Total=9900 [2024-10-14 14:13:22,752 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 468 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 4104 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 2276 SdHoareTripleChecker+Invalid, 4354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 4104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:22,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 2276 Invalid, 4354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 4104 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 14:13:22,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-10-14 14:13:22,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 386. [2024-10-14 14:13:22,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 327 states have (on average 1.2660550458715596) internal successors, (414), 328 states have internal predecessors, (414), 46 states have call successors, (46), 12 states have call predecessors, (46), 12 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-14 14:13:22,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 506 transitions. [2024-10-14 14:13:22,811 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 506 transitions. Word has length 153 [2024-10-14 14:13:22,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:22,812 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 506 transitions. [2024-10-14 14:13:22,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 29 states have (on average 4.172413793103448) internal successors, (121), 34 states have internal predecessors, (121), 13 states have call successors, (40), 5 states have call predecessors, (40), 8 states have return successors, (40), 8 states have call predecessors, (40), 13 states have call successors, (40) [2024-10-14 14:13:22,812 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 506 transitions. [2024-10-14 14:13:22,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 14:13:22,813 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:22,813 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:22,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 14:13:23,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:13:23,014 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:23,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:23,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1548395475, now seen corresponding path program 1 times [2024-10-14 14:13:23,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:23,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767931711] [2024-10-14 14:13:23,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:23,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:24,315 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:24,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:24,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767931711] [2024-10-14 14:13:24,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767931711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:24,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:24,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-14 14:13:24,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282900203] [2024-10-14 14:13:24,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:24,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 14:13:24,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:24,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 14:13:24,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-10-14 14:13:24,316 INFO L87 Difference]: Start difference. First operand 386 states and 506 transitions. Second operand has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:25,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:25,635 INFO L93 Difference]: Finished difference Result 969 states and 1275 transitions. [2024-10-14 14:13:25,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 14:13:25,636 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-14 14:13:25,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:25,638 INFO L225 Difference]: With dead ends: 969 [2024-10-14 14:13:25,638 INFO L226 Difference]: Without dead ends: 686 [2024-10-14 14:13:25,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=927, Unknown=0, NotChecked=0, Total=1122 [2024-10-14 14:13:25,640 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 555 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 1817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:25,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1270 Invalid, 1817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 14:13:25,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-10-14 14:13:25,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 386. [2024-10-14 14:13:25,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 327 states have (on average 1.2660550458715596) internal successors, (414), 328 states have internal predecessors, (414), 46 states have call successors, (46), 12 states have call predecessors, (46), 12 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-14 14:13:25,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 506 transitions. [2024-10-14 14:13:25,741 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 506 transitions. Word has length 153 [2024-10-14 14:13:25,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:25,742 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 506 transitions. [2024-10-14 14:13:25,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:25,742 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 506 transitions. [2024-10-14 14:13:25,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-14 14:13:25,743 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:25,743 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:25,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 14:13:25,743 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:25,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:25,744 INFO L85 PathProgramCache]: Analyzing trace with hash -2079403652, now seen corresponding path program 1 times [2024-10-14 14:13:25,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:25,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677660147] [2024-10-14 14:13:25,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:25,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:26,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:26,681 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:26,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:26,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677660147] [2024-10-14 14:13:26,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677660147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:26,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:26,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 14:13:26,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524182959] [2024-10-14 14:13:26,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:26,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 14:13:26,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:26,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 14:13:26,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-10-14 14:13:26,683 INFO L87 Difference]: Start difference. First operand 386 states and 506 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:27,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:27,118 INFO L93 Difference]: Finished difference Result 758 states and 1000 transitions. [2024-10-14 14:13:27,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:13:27,120 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2024-10-14 14:13:27,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:27,122 INFO L225 Difference]: With dead ends: 758 [2024-10-14 14:13:27,122 INFO L226 Difference]: Without dead ends: 475 [2024-10-14 14:13:27,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-10-14 14:13:27,123 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 387 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:27,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 264 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 14:13:27,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-10-14 14:13:27,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 385. [2024-10-14 14:13:27,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 326 states have (on average 1.2638036809815951) internal successors, (412), 327 states have internal predecessors, (412), 46 states have call successors, (46), 12 states have call predecessors, (46), 12 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-14 14:13:27,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 504 transitions. [2024-10-14 14:13:27,179 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 504 transitions. Word has length 154 [2024-10-14 14:13:27,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:27,179 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 504 transitions. [2024-10-14 14:13:27,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:27,179 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 504 transitions. [2024-10-14 14:13:27,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-14 14:13:27,180 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:27,180 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:27,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 14:13:27,180 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:27,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:27,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1068286402, now seen corresponding path program 1 times [2024-10-14 14:13:27,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:27,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516024167] [2024-10-14 14:13:27,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:27,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:27,681 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:27,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:27,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516024167] [2024-10-14 14:13:27,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516024167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:27,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:27,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 14:13:27,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98150787] [2024-10-14 14:13:27,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:27,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 14:13:27,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:27,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 14:13:27,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-14 14:13:27,683 INFO L87 Difference]: Start difference. First operand 385 states and 504 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:28,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:28,104 INFO L93 Difference]: Finished difference Result 746 states and 979 transitions. [2024-10-14 14:13:28,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:13:28,104 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2024-10-14 14:13:28,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:28,106 INFO L225 Difference]: With dead ends: 746 [2024-10-14 14:13:28,106 INFO L226 Difference]: Without dead ends: 464 [2024-10-14 14:13:28,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-10-14 14:13:28,107 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 340 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:28,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 356 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 14:13:28,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-10-14 14:13:28,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 401. [2024-10-14 14:13:28,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 342 states have (on average 1.2660818713450293) internal successors, (433), 343 states have internal predecessors, (433), 46 states have call successors, (46), 12 states have call predecessors, (46), 12 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-14 14:13:28,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 525 transitions. [2024-10-14 14:13:28,163 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 525 transitions. Word has length 154 [2024-10-14 14:13:28,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:28,163 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 525 transitions. [2024-10-14 14:13:28,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:28,163 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 525 transitions. [2024-10-14 14:13:28,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-14 14:13:28,164 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:28,164 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:28,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 14:13:28,164 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:28,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:28,165 INFO L85 PathProgramCache]: Analyzing trace with hash -964838203, now seen corresponding path program 1 times [2024-10-14 14:13:28,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:28,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054947833] [2024-10-14 14:13:28,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:28,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:33,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:33,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:33,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:33,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:33,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:33,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:33,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:33,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:33,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:33,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:33,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:33,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:33,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:33,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:33,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:34,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:34,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:34,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:34,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:34,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:34,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:34,162 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-14 14:13:34,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:34,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054947833] [2024-10-14 14:13:34,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054947833] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 14:13:34,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832613138] [2024-10-14 14:13:34,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:34,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:13:34,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:13:34,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 14:13:34,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 14:13:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:34,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-10-14 14:13:34,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 14:13:35,311 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 [2024-10-14 14:13:35,588 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 [2024-10-14 14:13:35,866 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 [2024-10-14 14:13:36,137 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 [2024-10-14 14:13:36,432 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 [2024-10-14 14:13:36,700 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 [2024-10-14 14:13:36,962 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 [2024-10-14 14:13:37,291 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 [2024-10-14 14:13:37,375 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 [2024-10-14 14:13:37,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 14:13:37,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 55 treesize of output 41 [2024-10-14 14:13:37,595 INFO L349 Elim1Store]: treesize reduction 36, result has 20.0 percent of original size [2024-10-14 14:13:37,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2024-10-14 14:13:37,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 28 treesize of output 14 [2024-10-14 14:13:37,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 146 treesize of output 110 [2024-10-14 14:13:37,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:13:37,872 INFO L349 Elim1Store]: treesize reduction 94, result has 16.8 percent of original size [2024-10-14 14:13:37,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 110 treesize of output 126 [2024-10-14 14:13:37,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:13:37,972 INFO L349 Elim1Store]: treesize reduction 20, result has 47.4 percent of original size [2024-10-14 14:13:37,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 60 treesize of output 61 [2024-10-14 14:13:38,577 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 14:13:38,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 159 treesize of output 259 [2024-10-14 14:13:40,473 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 195 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2024-10-14 14:13:40,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 14:13:40,752 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:40,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832613138] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 14:13:40,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-14 14:13:40,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [29, 16] total 46 [2024-10-14 14:13:40,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155703354] [2024-10-14 14:13:40,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:40,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 14:13:40,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:40,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 14:13:40,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2024-10-14 14:13:40,754 INFO L87 Difference]: Start difference. First operand 401 states and 525 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:41,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:41,205 INFO L93 Difference]: Finished difference Result 770 states and 1014 transitions. [2024-10-14 14:13:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 14:13:41,205 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2024-10-14 14:13:41,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:41,207 INFO L225 Difference]: With dead ends: 770 [2024-10-14 14:13:41,207 INFO L226 Difference]: Without dead ends: 472 [2024-10-14 14:13:41,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 333 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=159, Invalid=2291, Unknown=0, NotChecked=0, Total=2450 [2024-10-14 14:13:41,208 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 49 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:41,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 919 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 14:13:41,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-10-14 14:13:41,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 320. [2024-10-14 14:13:41,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 276 states have (on average 1.2644927536231885) internal successors, (349), 278 states have internal predecessors, (349), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 14:13:41,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 417 transitions. [2024-10-14 14:13:41,255 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 417 transitions. Word has length 154 [2024-10-14 14:13:41,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:41,256 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 417 transitions. [2024-10-14 14:13:41,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:41,256 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 417 transitions. [2024-10-14 14:13:41,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-14 14:13:41,257 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:41,257 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:41,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 14:13:41,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-14 14:13:41,458 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:41,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:41,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1804644038, now seen corresponding path program 1 times [2024-10-14 14:13:41,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:41,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702674158] [2024-10-14 14:13:41,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:41,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:41,996 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:41,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:41,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702674158] [2024-10-14 14:13:41,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702674158] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:41,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:41,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 14:13:41,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363727894] [2024-10-14 14:13:41,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:41,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 14:13:41,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:41,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 14:13:41,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-14 14:13:41,997 INFO L87 Difference]: Start difference. First operand 320 states and 417 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:42,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:42,461 INFO L93 Difference]: Finished difference Result 675 states and 885 transitions. [2024-10-14 14:13:42,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:13:42,461 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2024-10-14 14:13:42,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:42,463 INFO L225 Difference]: With dead ends: 675 [2024-10-14 14:13:42,463 INFO L226 Difference]: Without dead ends: 380 [2024-10-14 14:13:42,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-10-14 14:13:42,464 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 313 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:42,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 415 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 14:13:42,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-10-14 14:13:42,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 338. [2024-10-14 14:13:42,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 294 states have (on average 1.272108843537415) internal successors, (374), 296 states have internal predecessors, (374), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 14:13:42,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 442 transitions. [2024-10-14 14:13:42,510 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 442 transitions. Word has length 154 [2024-10-14 14:13:42,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:42,510 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 442 transitions. [2024-10-14 14:13:42,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 442 transitions. [2024-10-14 14:13:42,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-14 14:13:42,511 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:42,511 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:42,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 14:13:42,511 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:42,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:42,512 INFO L85 PathProgramCache]: Analyzing trace with hash -793526788, now seen corresponding path program 1 times [2024-10-14 14:13:42,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:42,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761566608] [2024-10-14 14:13:42,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:42,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:43,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:43,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:43,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:43,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:43,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:43,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:43,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:43,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:43,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:43,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:43,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:43,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:43,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:43,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:44,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:44,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:44,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:44,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:44,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:44,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:44,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:44,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761566608] [2024-10-14 14:13:44,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761566608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:44,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:44,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 14:13:44,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621415947] [2024-10-14 14:13:44,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:44,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 14:13:44,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:44,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 14:13:44,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-10-14 14:13:44,033 INFO L87 Difference]: Start difference. First operand 338 states and 442 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-14 14:13:44,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:44,526 INFO L93 Difference]: Finished difference Result 693 states and 909 transitions. [2024-10-14 14:13:44,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:13:44,527 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 154 [2024-10-14 14:13:44,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:44,528 INFO L225 Difference]: With dead ends: 693 [2024-10-14 14:13:44,528 INFO L226 Difference]: Without dead ends: 380 [2024-10-14 14:13:44,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-10-14 14:13:44,529 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 231 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:44,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 419 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 14:13:44,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-10-14 14:13:44,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 338. [2024-10-14 14:13:44,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 294 states have (on average 1.2653061224489797) internal successors, (372), 296 states have internal predecessors, (372), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 14:13:44,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 440 transitions. [2024-10-14 14:13:44,576 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 440 transitions. Word has length 154 [2024-10-14 14:13:44,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:44,577 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 440 transitions. [2024-10-14 14:13:44,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-14 14:13:44,577 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 440 transitions. [2024-10-14 14:13:44,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-14 14:13:44,578 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:44,578 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:44,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 14:13:44,578 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:44,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:44,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1394359478, now seen corresponding path program 1 times [2024-10-14 14:13:44,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:44,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007762613] [2024-10-14 14:13:44,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:44,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:45,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:45,389 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:45,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:45,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007762613] [2024-10-14 14:13:45,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007762613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:45,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:45,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 14:13:45,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201120971] [2024-10-14 14:13:45,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:45,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 14:13:45,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:45,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 14:13:45,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-14 14:13:45,391 INFO L87 Difference]: Start difference. First operand 338 states and 440 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:45,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:45,861 INFO L93 Difference]: Finished difference Result 715 states and 938 transitions. [2024-10-14 14:13:45,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 14:13:45,861 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-10-14 14:13:45,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:45,863 INFO L225 Difference]: With dead ends: 715 [2024-10-14 14:13:45,863 INFO L226 Difference]: Without dead ends: 402 [2024-10-14 14:13:45,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-10-14 14:13:45,864 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 261 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:45,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 574 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 14:13:45,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-10-14 14:13:45,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 342. [2024-10-14 14:13:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 298 states have (on average 1.2684563758389262) internal successors, (378), 300 states have internal predecessors, (378), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 14:13:45,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 446 transitions. [2024-10-14 14:13:45,911 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 446 transitions. Word has length 155 [2024-10-14 14:13:45,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:45,912 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 446 transitions. [2024-10-14 14:13:45,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:45,912 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 446 transitions. [2024-10-14 14:13:45,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 14:13:45,913 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:45,913 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:45,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 14:13:45,913 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:45,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:45,913 INFO L85 PathProgramCache]: Analyzing trace with hash -104653118, now seen corresponding path program 1 times [2024-10-14 14:13:45,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:45,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352498335] [2024-10-14 14:13:45,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:45,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:46,653 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:46,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:46,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352498335] [2024-10-14 14:13:46,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352498335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:46,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:46,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 14:13:46,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499290329] [2024-10-14 14:13:46,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:46,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 14:13:46,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:46,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 14:13:46,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-10-14 14:13:46,655 INFO L87 Difference]: Start difference. First operand 342 states and 446 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:47,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:47,165 INFO L93 Difference]: Finished difference Result 743 states and 974 transitions. [2024-10-14 14:13:47,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 14:13:47,165 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 156 [2024-10-14 14:13:47,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:47,167 INFO L225 Difference]: With dead ends: 743 [2024-10-14 14:13:47,167 INFO L226 Difference]: Without dead ends: 426 [2024-10-14 14:13:47,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-10-14 14:13:47,168 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 359 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:47,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 306 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 14:13:47,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-10-14 14:13:47,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 361. [2024-10-14 14:13:47,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 317 states have (on average 1.2618296529968454) internal successors, (400), 319 states have internal predecessors, (400), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 14:13:47,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 468 transitions. [2024-10-14 14:13:47,216 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 468 transitions. Word has length 156 [2024-10-14 14:13:47,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:47,216 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 468 transitions. [2024-10-14 14:13:47,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:47,216 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 468 transitions. [2024-10-14 14:13:47,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 14:13:47,217 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:47,217 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:47,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 14:13:47,217 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:47,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:47,218 INFO L85 PathProgramCache]: Analyzing trace with hash -362818556, now seen corresponding path program 1 times [2024-10-14 14:13:47,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:47,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885592241] [2024-10-14 14:13:47,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:47,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:48,579 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:48,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:48,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885592241] [2024-10-14 14:13:48,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885592241] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:48,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:48,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 14:13:48,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852801505] [2024-10-14 14:13:48,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:48,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 14:13:48,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:48,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 14:13:48,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-14 14:13:48,580 INFO L87 Difference]: Start difference. First operand 361 states and 468 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:49,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:49,434 INFO L93 Difference]: Finished difference Result 800 states and 1038 transitions. [2024-10-14 14:13:49,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 14:13:49,434 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 156 [2024-10-14 14:13:49,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:49,436 INFO L225 Difference]: With dead ends: 800 [2024-10-14 14:13:49,436 INFO L226 Difference]: Without dead ends: 464 [2024-10-14 14:13:49,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2024-10-14 14:13:49,437 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 383 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:49,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 469 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 14:13:49,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-10-14 14:13:49,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 361. [2024-10-14 14:13:49,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 317 states have (on average 1.2618296529968454) internal successors, (400), 319 states have internal predecessors, (400), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 14:13:49,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 468 transitions. [2024-10-14 14:13:49,488 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 468 transitions. Word has length 156 [2024-10-14 14:13:49,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:49,489 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 468 transitions. [2024-10-14 14:13:49,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:49,489 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 468 transitions. [2024-10-14 14:13:49,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 14:13:49,489 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:49,490 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:49,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 14:13:49,490 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:49,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:49,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1805864811, now seen corresponding path program 1 times [2024-10-14 14:13:49,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:49,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650848298] [2024-10-14 14:13:49,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:49,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:49,830 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:49,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:49,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650848298] [2024-10-14 14:13:49,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650848298] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:49,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:49,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 14:13:49,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768049583] [2024-10-14 14:13:49,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:49,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 14:13:49,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:49,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 14:13:49,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 14:13:49,832 INFO L87 Difference]: Start difference. First operand 361 states and 468 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:50,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:50,071 INFO L93 Difference]: Finished difference Result 831 states and 1080 transitions. [2024-10-14 14:13:50,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 14:13:50,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2024-10-14 14:13:50,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:50,073 INFO L225 Difference]: With dead ends: 831 [2024-10-14 14:13:50,073 INFO L226 Difference]: Without dead ends: 495 [2024-10-14 14:13:50,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 14:13:50,074 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 236 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:50,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 304 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 14:13:50,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-10-14 14:13:50,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 445. [2024-10-14 14:13:50,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 401 states have (on average 1.2618453865336658) internal successors, (506), 403 states have internal predecessors, (506), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 14:13:50,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 574 transitions. [2024-10-14 14:13:50,127 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 574 transitions. Word has length 156 [2024-10-14 14:13:50,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:50,127 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 574 transitions. [2024-10-14 14:13:50,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:13:50,127 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 574 transitions. [2024-10-14 14:13:50,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 14:13:50,128 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:50,128 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:50,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 14:13:50,128 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:50,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:50,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2096075475, now seen corresponding path program 1 times [2024-10-14 14:13:50,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:50,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718843331] [2024-10-14 14:13:50,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:50,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:50,811 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:50,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:50,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718843331] [2024-10-14 14:13:50,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718843331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:50,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:50,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 14:13:50,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727868486] [2024-10-14 14:13:50,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:50,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 14:13:50,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:50,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 14:13:50,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 14:13:50,813 INFO L87 Difference]: Start difference. First operand 445 states and 574 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:51,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:51,455 INFO L93 Difference]: Finished difference Result 921 states and 1192 transitions. [2024-10-14 14:13:51,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 14:13:51,455 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 156 [2024-10-14 14:13:51,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:51,457 INFO L225 Difference]: With dead ends: 921 [2024-10-14 14:13:51,457 INFO L226 Difference]: Without dead ends: 501 [2024-10-14 14:13:51,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2024-10-14 14:13:51,458 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 310 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:51,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 609 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 14:13:51,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-10-14 14:13:51,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 453. [2024-10-14 14:13:51,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 409 states have (on average 1.256723716381418) internal successors, (514), 411 states have internal predecessors, (514), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 14:13:51,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 582 transitions. [2024-10-14 14:13:51,513 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 582 transitions. Word has length 156 [2024-10-14 14:13:51,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:51,513 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 582 transitions. [2024-10-14 14:13:51,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:51,513 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 582 transitions. [2024-10-14 14:13:51,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 14:13:51,514 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:51,514 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:51,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-14 14:13:51,515 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:51,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:51,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1654400386, now seen corresponding path program 1 times [2024-10-14 14:13:51,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:51,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821933492] [2024-10-14 14:13:51,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:51,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 14:13:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 14:13:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:13:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 14:13:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 14:13:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:13:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:13:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:13:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:13:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:13:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:13:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:13:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:13:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:13:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:13:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:13:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:13:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:13:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:13:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:13:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:13:51,860 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:13:51,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:13:51,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821933492] [2024-10-14 14:13:51,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821933492] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:13:51,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:13:51,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 14:13:51,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42765525] [2024-10-14 14:13:51,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:13:51,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 14:13:51,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:13:51,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 14:13:51,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 14:13:51,861 INFO L87 Difference]: Start difference. First operand 453 states and 582 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:52,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:13:52,143 INFO L93 Difference]: Finished difference Result 923 states and 1190 transitions. [2024-10-14 14:13:52,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 14:13:52,143 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 156 [2024-10-14 14:13:52,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:13:52,145 INFO L225 Difference]: With dead ends: 923 [2024-10-14 14:13:52,145 INFO L226 Difference]: Without dead ends: 495 [2024-10-14 14:13:52,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 14:13:52,146 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 231 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 14:13:52,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 294 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 14:13:52,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-10-14 14:13:52,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 453. [2024-10-14 14:13:52,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 409 states have (on average 1.2518337408312958) internal successors, (512), 411 states have internal predecessors, (512), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 14:13:52,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 580 transitions. [2024-10-14 14:13:52,204 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 580 transitions. Word has length 156 [2024-10-14 14:13:52,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:13:52,205 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 580 transitions. [2024-10-14 14:13:52,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:13:52,205 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 580 transitions. [2024-10-14 14:13:52,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 14:13:52,205 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:13:52,206 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:13:52,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-14 14:13:52,206 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:13:52,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:13:52,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1317857406, now seen corresponding path program 1 times [2024-10-14 14:13:52,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:13:52,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772681137] [2024-10-14 14:13:52,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:13:52,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:13:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat