./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-80.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-80.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 f4ab57f7e2128c7453b65f19e94282d169dfca427d7d7188c760e7a4e8739cbc --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 07:56:17,248 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 07:56:17,315 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 07:56:17,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 07:56:17,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 07:56:17,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 07:56:17,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 07:56:17,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 07:56:17,346 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 07:56:17,346 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 07:56:17,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 07:56:17,347 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 07:56:17,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 07:56:17,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 07:56:17,349 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 07:56:17,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 07:56:17,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 07:56:17,351 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 07:56:17,351 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 07:56:17,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 07:56:17,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 07:56:17,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 07:56:17,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 07:56:17,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 07:56:17,354 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 07:56:17,355 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 07:56:17,355 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 07:56:17,355 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 07:56:17,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 07:56:17,356 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 07:56:17,356 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 07:56:17,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 07:56:17,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 07:56:17,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 07:56:17,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 07:56:17,357 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 07:56:17,357 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 07:56:17,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 07:56:17,358 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 07:56:17,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 07:56:17,358 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 07:56:17,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 07:56:17,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4ab57f7e2128c7453b65f19e94282d169dfca427d7d7188c760e7a4e8739cbc [2024-11-12 07:56:17,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 07:56:17,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 07:56:17,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 07:56:17,687 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 07:56:17,687 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 07:56:17,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-80.i [2024-11-12 07:56:19,090 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 07:56:19,319 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 07:56:19,320 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-80.i [2024-11-12 07:56:19,334 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80f16e0f3/98dcb68eae9246a3b4b857a47035139e/FLAG1b5c5446b [2024-11-12 07:56:19,674 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80f16e0f3/98dcb68eae9246a3b4b857a47035139e [2024-11-12 07:56:19,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 07:56:19,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 07:56:19,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 07:56:19,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 07:56:19,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 07:56:19,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:56:19" (1/1) ... [2024-11-12 07:56:19,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d862a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:19, skipping insertion in model container [2024-11-12 07:56:19,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:56:19" (1/1) ... [2024-11-12 07:56:19,739 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 07:56:19,911 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-80.i[917,930] [2024-11-12 07:56:19,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 07:56:20,015 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 07:56:20,026 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-80.i[917,930] [2024-11-12 07:56:20,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 07:56:20,091 INFO L204 MainTranslator]: Completed translation [2024-11-12 07:56:20,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:20 WrapperNode [2024-11-12 07:56:20,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 07:56:20,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 07:56:20,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 07:56:20,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 07:56:20,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:20" (1/1) ... [2024-11-12 07:56:20,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:20" (1/1) ... [2024-11-12 07:56:20,157 INFO L138 Inliner]: procedures = 30, calls = 228, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 781 [2024-11-12 07:56:20,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 07:56:20,159 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 07:56:20,159 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 07:56:20,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 07:56:20,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:20" (1/1) ... [2024-11-12 07:56:20,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:20" (1/1) ... [2024-11-12 07:56:20,184 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:20" (1/1) ... [2024-11-12 07:56:20,192 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-12 07:56:20,193 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:20" (1/1) ... [2024-11-12 07:56:20,193 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:20" (1/1) ... [2024-11-12 07:56:20,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:20" (1/1) ... [2024-11-12 07:56:20,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:20" (1/1) ... [2024-11-12 07:56:20,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:20" (1/1) ... [2024-11-12 07:56:20,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:20" (1/1) ... [2024-11-12 07:56:20,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 07:56:20,234 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 07:56:20,234 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 07:56:20,234 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 07:56:20,235 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:20" (1/1) ... [2024-11-12 07:56:20,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 07:56:20,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:56:20,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 07:56:20,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 07:56:20,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 07:56:20,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-12 07:56:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-12 07:56:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 07:56:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-12 07:56:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-12 07:56:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 07:56:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 07:56:20,364 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 07:56:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 07:56:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 07:56:20,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 07:56:20,649 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 07:56:20,651 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 07:56:21,458 INFO L? ?]: Removed 236 outVars from TransFormulas that were not future-live. [2024-11-12 07:56:21,458 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 07:56:21,480 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 07:56:21,480 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 07:56:21,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:56:21 BoogieIcfgContainer [2024-11-12 07:56:21,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 07:56:21,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 07:56:21,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 07:56:21,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 07:56:21,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:56:19" (1/3) ... [2024-11-12 07:56:21,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5244e7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:56:21, skipping insertion in model container [2024-11-12 07:56:21,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:56:20" (2/3) ... [2024-11-12 07:56:21,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5244e7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:56:21, skipping insertion in model container [2024-11-12 07:56:21,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:56:21" (3/3) ... [2024-11-12 07:56:21,494 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-80.i [2024-11-12 07:56:21,514 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 07:56:21,514 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 07:56:21,598 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 07:56:21,609 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;@514aad1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 07:56:21,609 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 07:56:21,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 134 states have (on average 1.455223880597015) internal successors, (195), 135 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:21,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-12 07:56:21,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:21,633 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:21,634 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:21,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:21,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1448501280, now seen corresponding path program 1 times [2024-11-12 07:56:21,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:21,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206098414] [2024-11-12 07:56:21,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:21,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,236 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:22,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:22,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206098414] [2024-11-12 07:56:22,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206098414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:22,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:22,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 07:56:22,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467257646] [2024-11-12 07:56:22,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:22,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 07:56:22,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:22,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 07:56:22,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 07:56:22,283 INFO L87 Difference]: Start difference. First operand has 154 states, 134 states have (on average 1.455223880597015) internal successors, (195), 135 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-12 07:56:22,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:22,331 INFO L93 Difference]: Finished difference Result 301 states and 469 transitions. [2024-11-12 07:56:22,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 07:56:22,334 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-12 07:56:22,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:22,342 INFO L225 Difference]: With dead ends: 301 [2024-11-12 07:56:22,343 INFO L226 Difference]: Without dead ends: 150 [2024-11-12 07:56:22,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 07:56:22,353 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:22,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:56:22,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-12 07:56:22,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-12 07:56:22,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 131 states have (on average 1.4351145038167938) internal successors, (188), 131 states have internal predecessors, (188), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:22,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 222 transitions. [2024-11-12 07:56:22,420 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 222 transitions. Word has length 153 [2024-11-12 07:56:22,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:22,420 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 222 transitions. [2024-11-12 07:56:22,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-12 07:56:22,421 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 222 transitions. [2024-11-12 07:56:22,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-12 07:56:22,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:22,430 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:22,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 07:56:22,431 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:22,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:22,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1664099722, now seen corresponding path program 1 times [2024-11-12 07:56:22,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:22,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556075176] [2024-11-12 07:56:22,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:22,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:22,963 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:22,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:22,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556075176] [2024-11-12 07:56:22,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556075176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:22,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:22,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 07:56:22,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71441639] [2024-11-12 07:56:22,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:22,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 07:56:22,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:22,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 07:56:22,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:56:22,968 INFO L87 Difference]: Start difference. First operand 150 states and 222 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-12 07:56:23,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:23,019 INFO L93 Difference]: Finished difference Result 299 states and 444 transitions. [2024-11-12 07:56:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 07:56:23,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-12 07:56:23,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:23,024 INFO L225 Difference]: With dead ends: 299 [2024-11-12 07:56:23,024 INFO L226 Difference]: Without dead ends: 152 [2024-11-12 07:56:23,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:56:23,026 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:23,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:56:23,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-12 07:56:23,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-12 07:56:23,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 133 states have (on average 1.4285714285714286) internal successors, (190), 133 states have internal predecessors, (190), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:23,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 224 transitions. [2024-11-12 07:56:23,050 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 224 transitions. Word has length 153 [2024-11-12 07:56:23,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:23,056 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 224 transitions. [2024-11-12 07:56:23,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-12 07:56:23,057 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 224 transitions. [2024-11-12 07:56:23,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-12 07:56:23,063 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:23,063 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:23,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 07:56:23,064 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:23,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:23,065 INFO L85 PathProgramCache]: Analyzing trace with hash -719825016, now seen corresponding path program 1 times [2024-11-12 07:56:23,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:23,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362547018] [2024-11-12 07:56:23,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:23,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,547 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:23,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:23,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362547018] [2024-11-12 07:56:23,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362547018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:23,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:23,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 07:56:23,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064537708] [2024-11-12 07:56:23,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:23,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 07:56:23,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:23,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 07:56:23,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:56:23,552 INFO L87 Difference]: Start difference. First operand 152 states and 224 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:23,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:23,597 INFO L93 Difference]: Finished difference Result 303 states and 448 transitions. [2024-11-12 07:56:23,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 07:56:23,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 153 [2024-11-12 07:56:23,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:23,602 INFO L225 Difference]: With dead ends: 303 [2024-11-12 07:56:23,603 INFO L226 Difference]: Without dead ends: 154 [2024-11-12 07:56:23,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:56:23,608 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:23,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:56:23,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-12 07:56:23,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-11-12 07:56:23,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 135 states have (on average 1.4222222222222223) internal successors, (192), 135 states have internal predecessors, (192), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:23,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 226 transitions. [2024-11-12 07:56:23,625 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 226 transitions. Word has length 153 [2024-11-12 07:56:23,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:23,626 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 226 transitions. [2024-11-12 07:56:23,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:23,626 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 226 transitions. [2024-11-12 07:56:23,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:56:23,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:23,629 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:23,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 07:56:23,629 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:23,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:23,630 INFO L85 PathProgramCache]: Analyzing trace with hash -90117501, now seen corresponding path program 1 times [2024-11-12 07:56:23,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:23,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711322420] [2024-11-12 07:56:23,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:23,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:23,911 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:23,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:23,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711322420] [2024-11-12 07:56:23,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711322420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:23,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:23,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 07:56:23,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453895236] [2024-11-12 07:56:23,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:23,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 07:56:23,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:23,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 07:56:23,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:56:23,918 INFO L87 Difference]: Start difference. First operand 154 states and 226 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:23,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:23,951 INFO L93 Difference]: Finished difference Result 308 states and 453 transitions. [2024-11-12 07:56:23,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 07:56:23,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:56:23,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:23,957 INFO L225 Difference]: With dead ends: 308 [2024-11-12 07:56:23,957 INFO L226 Difference]: Without dead ends: 157 [2024-11-12 07:56:23,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:56:23,960 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:23,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 647 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:56:23,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-12 07:56:23,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2024-11-12 07:56:23,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 137 states have (on average 1.416058394160584) internal successors, (194), 137 states have internal predecessors, (194), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:23,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 228 transitions. [2024-11-12 07:56:23,969 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 228 transitions. Word has length 155 [2024-11-12 07:56:23,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:23,969 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 228 transitions. [2024-11-12 07:56:23,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:23,970 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 228 transitions. [2024-11-12 07:56:23,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:56:23,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:23,972 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:23,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 07:56:23,972 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:23,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:23,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1684889861, now seen corresponding path program 1 times [2024-11-12 07:56:23,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:23,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782537732] [2024-11-12 07:56:23,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:23,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:24,226 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:24,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:24,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782537732] [2024-11-12 07:56:24,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782537732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:24,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:24,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 07:56:24,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627127654] [2024-11-12 07:56:24,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:24,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 07:56:24,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:24,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 07:56:24,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:56:24,231 INFO L87 Difference]: Start difference. First operand 156 states and 228 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:24,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:24,260 INFO L93 Difference]: Finished difference Result 312 states and 457 transitions. [2024-11-12 07:56:24,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 07:56:24,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:56:24,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:24,263 INFO L225 Difference]: With dead ends: 312 [2024-11-12 07:56:24,265 INFO L226 Difference]: Without dead ends: 159 [2024-11-12 07:56:24,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 07:56:24,266 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:24,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:56:24,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-12 07:56:24,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 158. [2024-11-12 07:56:24,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.410071942446043) internal successors, (196), 139 states have internal predecessors, (196), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:24,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 230 transitions. [2024-11-12 07:56:24,284 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 230 transitions. Word has length 155 [2024-11-12 07:56:24,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:24,285 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 230 transitions. [2024-11-12 07:56:24,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:24,285 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 230 transitions. [2024-11-12 07:56:24,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:56:24,287 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:24,288 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:24,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 07:56:24,288 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:24,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:24,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1686736903, now seen corresponding path program 1 times [2024-11-12 07:56:24,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:24,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601497975] [2024-11-12 07:56:24,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:24,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:25,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:25,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601497975] [2024-11-12 07:56:25,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601497975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:25,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:25,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:56:25,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590173152] [2024-11-12 07:56:25,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:25,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:56:25,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:25,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:56:25,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:56:25,361 INFO L87 Difference]: Start difference. First operand 158 states and 230 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:25,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:25,593 INFO L93 Difference]: Finished difference Result 317 states and 464 transitions. [2024-11-12 07:56:25,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 07:56:25,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:56:25,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:25,597 INFO L225 Difference]: With dead ends: 317 [2024-11-12 07:56:25,598 INFO L226 Difference]: Without dead ends: 162 [2024-11-12 07:56:25,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:56:25,599 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 2 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:25,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 814 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 07:56:25,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-12 07:56:25,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 161. [2024-11-12 07:56:25,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 142 states have (on average 1.408450704225352) internal successors, (200), 142 states have internal predecessors, (200), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:25,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 234 transitions. [2024-11-12 07:56:25,616 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 234 transitions. Word has length 155 [2024-11-12 07:56:25,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:25,616 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 234 transitions. [2024-11-12 07:56:25,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:25,616 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 234 transitions. [2024-11-12 07:56:25,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:56:25,618 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:25,618 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:25,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 07:56:25,618 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:25,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:25,620 INFO L85 PathProgramCache]: Analyzing trace with hash -118701431, now seen corresponding path program 1 times [2024-11-12 07:56:25,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:25,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098312642] [2024-11-12 07:56:25,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:25,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:29,329 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:29,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:29,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098312642] [2024-11-12 07:56:29,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098312642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:29,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:29,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 07:56:29,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280899517] [2024-11-12 07:56:29,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:29,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 07:56:29,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:29,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 07:56:29,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-12 07:56:29,332 INFO L87 Difference]: Start difference. First operand 161 states and 234 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:30,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:30,251 INFO L93 Difference]: Finished difference Result 377 states and 546 transitions. [2024-11-12 07:56:30,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 07:56:30,253 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:56:30,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:30,256 INFO L225 Difference]: With dead ends: 377 [2024-11-12 07:56:30,256 INFO L226 Difference]: Without dead ends: 219 [2024-11-12 07:56:30,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-12 07:56:30,258 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 76 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:30,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 1218 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-12 07:56:30,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-12 07:56:30,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 166. [2024-11-12 07:56:30,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 147 states have (on average 1.4081632653061225) internal successors, (207), 147 states have internal predecessors, (207), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:30,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 241 transitions. [2024-11-12 07:56:30,266 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 241 transitions. Word has length 155 [2024-11-12 07:56:30,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:30,267 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 241 transitions. [2024-11-12 07:56:30,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:30,267 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 241 transitions. [2024-11-12 07:56:30,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:56:30,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:30,270 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:30,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 07:56:30,270 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:30,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:30,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2112846137, now seen corresponding path program 1 times [2024-11-12 07:56:30,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:30,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245540263] [2024-11-12 07:56:30,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:30,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:32,598 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:32,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:32,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245540263] [2024-11-12 07:56:32,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245540263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:32,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:32,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 07:56:32,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347657014] [2024-11-12 07:56:32,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:32,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 07:56:32,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:32,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 07:56:32,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-12 07:56:32,602 INFO L87 Difference]: Start difference. First operand 166 states and 241 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:33,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:33,356 INFO L93 Difference]: Finished difference Result 385 states and 556 transitions. [2024-11-12 07:56:33,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 07:56:33,357 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:56:33,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:33,359 INFO L225 Difference]: With dead ends: 385 [2024-11-12 07:56:33,359 INFO L226 Difference]: Without dead ends: 222 [2024-11-12 07:56:33,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-12 07:56:33,363 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 77 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:33,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1245 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-12 07:56:33,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-12 07:56:33,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 169. [2024-11-12 07:56:33,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 150 states have (on average 1.4) internal successors, (210), 150 states have internal predecessors, (210), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:33,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 244 transitions. [2024-11-12 07:56:33,374 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 244 transitions. Word has length 155 [2024-11-12 07:56:33,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:33,375 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 244 transitions. [2024-11-12 07:56:33,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:33,375 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 244 transitions. [2024-11-12 07:56:33,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:56:33,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:33,377 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:33,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 07:56:33,378 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:33,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:33,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1364472709, now seen corresponding path program 1 times [2024-11-12 07:56:33,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:33,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503480935] [2024-11-12 07:56:33,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:33,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:34,073 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:34,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:34,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503480935] [2024-11-12 07:56:34,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503480935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:34,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:34,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:56:34,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963846788] [2024-11-12 07:56:34,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:34,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:56:34,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:34,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:56:34,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:56:34,075 INFO L87 Difference]: Start difference. First operand 169 states and 244 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:34,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:34,427 INFO L93 Difference]: Finished difference Result 381 states and 549 transitions. [2024-11-12 07:56:34,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 07:56:34,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:56:34,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:34,429 INFO L225 Difference]: With dead ends: 381 [2024-11-12 07:56:34,429 INFO L226 Difference]: Without dead ends: 215 [2024-11-12 07:56:34,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:56:34,430 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 67 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:34,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 869 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 07:56:34,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-12 07:56:34,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 167. [2024-11-12 07:56:34,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 148 states have (on average 1.3986486486486487) internal successors, (207), 148 states have internal predecessors, (207), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:34,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 241 transitions. [2024-11-12 07:56:34,439 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 241 transitions. Word has length 155 [2024-11-12 07:56:34,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:34,440 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 241 transitions. [2024-11-12 07:56:34,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:34,440 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 241 transitions. [2024-11-12 07:56:34,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:56:34,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:34,442 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:34,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 07:56:34,442 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:34,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:34,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1827285513, now seen corresponding path program 1 times [2024-11-12 07:56:34,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:34,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506569994] [2024-11-12 07:56:34,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:34,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:35,356 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:35,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:35,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506569994] [2024-11-12 07:56:35,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506569994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:35,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:35,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 07:56:35,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325651148] [2024-11-12 07:56:35,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:35,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 07:56:35,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:35,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 07:56:35,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 07:56:35,359 INFO L87 Difference]: Start difference. First operand 167 states and 241 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:36,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:36,057 INFO L93 Difference]: Finished difference Result 387 states and 558 transitions. [2024-11-12 07:56:36,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 07:56:36,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:56:36,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:36,060 INFO L225 Difference]: With dead ends: 387 [2024-11-12 07:56:36,060 INFO L226 Difference]: Without dead ends: 223 [2024-11-12 07:56:36,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-12 07:56:36,061 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 71 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:36,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1115 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-12 07:56:36,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-12 07:56:36,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 170. [2024-11-12 07:56:36,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 151 states have (on average 1.3973509933774835) internal successors, (211), 151 states have internal predecessors, (211), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:36,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 245 transitions. [2024-11-12 07:56:36,070 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 245 transitions. Word has length 155 [2024-11-12 07:56:36,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:36,070 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 245 transitions. [2024-11-12 07:56:36,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:36,071 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 245 transitions. [2024-11-12 07:56:36,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:56:36,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:36,072 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:36,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 07:56:36,073 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:36,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:36,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1009637063, now seen corresponding path program 1 times [2024-11-12 07:56:36,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:36,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614156067] [2024-11-12 07:56:36,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:36,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:36,826 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:36,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:36,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614156067] [2024-11-12 07:56:36,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614156067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:36,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:36,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 07:56:36,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651610361] [2024-11-12 07:56:36,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:36,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 07:56:36,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:36,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 07:56:36,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-12 07:56:36,830 INFO L87 Difference]: Start difference. First operand 170 states and 245 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:37,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:37,572 INFO L93 Difference]: Finished difference Result 391 states and 563 transitions. [2024-11-12 07:56:37,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 07:56:37,573 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:56:37,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:37,575 INFO L225 Difference]: With dead ends: 391 [2024-11-12 07:56:37,575 INFO L226 Difference]: Without dead ends: 224 [2024-11-12 07:56:37,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-12 07:56:37,576 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 73 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:37,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1321 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-12 07:56:37,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-12 07:56:37,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 172. [2024-11-12 07:56:37,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 153 states have (on average 1.3986928104575163) internal successors, (214), 153 states have internal predecessors, (214), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:37,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 248 transitions. [2024-11-12 07:56:37,583 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 248 transitions. Word has length 155 [2024-11-12 07:56:37,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:37,584 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 248 transitions. [2024-11-12 07:56:37,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:37,584 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 248 transitions. [2024-11-12 07:56:37,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:56:37,585 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:37,585 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:37,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 07:56:37,586 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:37,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:37,586 INFO L85 PathProgramCache]: Analyzing trace with hash -984507643, now seen corresponding path program 1 times [2024-11-12 07:56:37,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:37,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202921680] [2024-11-12 07:56:37,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:37,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:39,604 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:39,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:39,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202921680] [2024-11-12 07:56:39,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202921680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:39,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:39,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-12 07:56:39,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390211512] [2024-11-12 07:56:39,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:39,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 07:56:39,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:39,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 07:56:39,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-12 07:56:39,611 INFO L87 Difference]: Start difference. First operand 172 states and 248 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:40,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:40,952 INFO L93 Difference]: Finished difference Result 533 states and 761 transitions. [2024-11-12 07:56:40,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 07:56:40,953 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:56:40,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:40,955 INFO L225 Difference]: With dead ends: 533 [2024-11-12 07:56:40,955 INFO L226 Difference]: Without dead ends: 364 [2024-11-12 07:56:40,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2024-11-12 07:56:40,957 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 820 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:40,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1229 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-12 07:56:40,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-12 07:56:40,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 200. [2024-11-12 07:56:40,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 181 states have (on average 1.408839779005525) internal successors, (255), 181 states have internal predecessors, (255), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:40,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 289 transitions. [2024-11-12 07:56:40,970 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 289 transitions. Word has length 155 [2024-11-12 07:56:40,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:40,970 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 289 transitions. [2024-11-12 07:56:40,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:40,971 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 289 transitions. [2024-11-12 07:56:40,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:56:40,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:40,973 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:40,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 07:56:40,973 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:40,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:40,974 INFO L85 PathProgramCache]: Analyzing trace with hash 21847179, now seen corresponding path program 1 times [2024-11-12 07:56:40,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:40,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595741953] [2024-11-12 07:56:40,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:40,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:44,476 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:44,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:44,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595741953] [2024-11-12 07:56:44,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595741953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:44,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:44,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-12 07:56:44,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333756009] [2024-11-12 07:56:44,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:44,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-12 07:56:44,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:44,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-12 07:56:44,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-12 07:56:44,479 INFO L87 Difference]: Start difference. First operand 200 states and 289 transitions. Second operand has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:46,555 INFO L93 Difference]: Finished difference Result 514 states and 736 transitions. [2024-11-12 07:56:46,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 07:56:46,557 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:56:46,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:46,559 INFO L225 Difference]: With dead ends: 514 [2024-11-12 07:56:46,559 INFO L226 Difference]: Without dead ends: 317 [2024-11-12 07:56:46,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2024-11-12 07:56:46,560 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 579 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:46,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1457 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-12 07:56:46,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-12 07:56:46,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 205. [2024-11-12 07:56:46,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 186 states have (on average 1.4086021505376345) internal successors, (262), 186 states have internal predecessors, (262), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:46,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 296 transitions. [2024-11-12 07:56:46,571 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 296 transitions. Word has length 155 [2024-11-12 07:56:46,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:46,571 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 296 transitions. [2024-11-12 07:56:46,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:46,571 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 296 transitions. [2024-11-12 07:56:46,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:56:46,573 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:46,573 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:46,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 07:56:46,573 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:46,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:46,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1972297527, now seen corresponding path program 1 times [2024-11-12 07:56:46,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:46,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710984521] [2024-11-12 07:56:46,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:46,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:47,059 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:47,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:47,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710984521] [2024-11-12 07:56:47,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710984521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:47,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:47,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 07:56:47,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568645917] [2024-11-12 07:56:47,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:47,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 07:56:47,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:47,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 07:56:47,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 07:56:47,061 INFO L87 Difference]: Start difference. First operand 205 states and 296 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:47,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:47,340 INFO L93 Difference]: Finished difference Result 465 states and 670 transitions. [2024-11-12 07:56:47,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 07:56:47,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:56:47,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:47,342 INFO L225 Difference]: With dead ends: 465 [2024-11-12 07:56:47,342 INFO L226 Difference]: Without dead ends: 263 [2024-11-12 07:56:47,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 07:56:47,343 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 75 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:47,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 766 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 07:56:47,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-12 07:56:47,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 207. [2024-11-12 07:56:47,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 188 states have (on average 1.398936170212766) internal successors, (263), 188 states have internal predecessors, (263), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:47,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 297 transitions. [2024-11-12 07:56:47,354 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 297 transitions. Word has length 155 [2024-11-12 07:56:47,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:47,354 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 297 transitions. [2024-11-12 07:56:47,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:47,355 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 297 transitions. [2024-11-12 07:56:47,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-12 07:56:47,356 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:47,356 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:47,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 07:56:47,357 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:47,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:47,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1505021319, now seen corresponding path program 1 times [2024-11-12 07:56:47,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:47,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316543635] [2024-11-12 07:56:47,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:47,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:48,976 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:48,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:48,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316543635] [2024-11-12 07:56:48,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316543635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:48,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:48,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 07:56:48,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619186889] [2024-11-12 07:56:48,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:48,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 07:56:48,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:48,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 07:56:48,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-12 07:56:48,978 INFO L87 Difference]: Start difference. First operand 207 states and 297 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:50,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:50,050 INFO L93 Difference]: Finished difference Result 465 states and 667 transitions. [2024-11-12 07:56:50,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 07:56:50,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-12 07:56:50,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:50,053 INFO L225 Difference]: With dead ends: 465 [2024-11-12 07:56:50,053 INFO L226 Difference]: Without dead ends: 261 [2024-11-12 07:56:50,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-12 07:56:50,054 INFO L435 NwaCegarLoop]: 269 mSDtfsCounter, 75 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:50,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 1768 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-12 07:56:50,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-12 07:56:50,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 207. [2024-11-12 07:56:50,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 188 states have (on average 1.4042553191489362) internal successors, (264), 188 states have internal predecessors, (264), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:50,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 298 transitions. [2024-11-12 07:56:50,066 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 298 transitions. Word has length 155 [2024-11-12 07:56:50,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:50,067 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 298 transitions. [2024-11-12 07:56:50,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:50,067 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 298 transitions. [2024-11-12 07:56:50,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-12 07:56:50,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:50,069 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:50,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 07:56:50,069 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:50,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:50,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1746635072, now seen corresponding path program 1 times [2024-11-12 07:56:50,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:50,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764393841] [2024-11-12 07:56:50,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:50,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,219 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:50,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:50,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764393841] [2024-11-12 07:56:50,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764393841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:50,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:50,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 07:56:50,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303561815] [2024-11-12 07:56:50,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:50,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 07:56:50,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:50,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 07:56:50,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 07:56:50,223 INFO L87 Difference]: Start difference. First operand 207 states and 298 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:50,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:50,241 INFO L93 Difference]: Finished difference Result 412 states and 595 transitions. [2024-11-12 07:56:50,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 07:56:50,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 156 [2024-11-12 07:56:50,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:50,244 INFO L225 Difference]: With dead ends: 412 [2024-11-12 07:56:50,244 INFO L226 Difference]: Without dead ends: 208 [2024-11-12 07:56:50,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 07:56:50,246 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 0 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:50,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 435 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 07:56:50,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-12 07:56:50,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-11-12 07:56:50,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 189 states have (on average 1.402116402116402) internal successors, (265), 189 states have internal predecessors, (265), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:50,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 299 transitions. [2024-11-12 07:56:50,259 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 299 transitions. Word has length 156 [2024-11-12 07:56:50,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:50,259 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 299 transitions. [2024-11-12 07:56:50,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:50,259 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 299 transitions. [2024-11-12 07:56:50,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-12 07:56:50,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:50,261 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:50,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 07:56:50,261 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:50,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:50,262 INFO L85 PathProgramCache]: Analyzing trace with hash 466771394, now seen corresponding path program 1 times [2024-11-12 07:56:50,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:50,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546414742] [2024-11-12 07:56:50,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:50,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:50,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:51,063 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:51,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:51,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546414742] [2024-11-12 07:56:51,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546414742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:51,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:51,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 07:56:51,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188978619] [2024-11-12 07:56:51,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:51,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 07:56:51,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:51,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 07:56:51,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-12 07:56:51,066 INFO L87 Difference]: Start difference. First operand 208 states and 299 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:51,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:51,709 INFO L93 Difference]: Finished difference Result 474 states and 677 transitions. [2024-11-12 07:56:51,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 07:56:51,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 156 [2024-11-12 07:56:51,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:51,711 INFO L225 Difference]: With dead ends: 474 [2024-11-12 07:56:51,711 INFO L226 Difference]: Without dead ends: 269 [2024-11-12 07:56:51,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-12 07:56:51,712 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 354 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:51,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1034 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-12 07:56:51,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-12 07:56:51,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 223. [2024-11-12 07:56:51,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 204 states have (on average 1.392156862745098) internal successors, (284), 204 states have internal predecessors, (284), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:51,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 318 transitions. [2024-11-12 07:56:51,725 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 318 transitions. Word has length 156 [2024-11-12 07:56:51,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:51,727 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 318 transitions. [2024-11-12 07:56:51,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:51,727 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 318 transitions. [2024-11-12 07:56:51,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 07:56:51,729 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:51,729 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:51,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 07:56:51,729 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:51,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:51,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1049635852, now seen corresponding path program 1 times [2024-11-12 07:56:51,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:51,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708463924] [2024-11-12 07:56:51,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:51,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:53,395 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:53,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:53,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708463924] [2024-11-12 07:56:53,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708463924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:53,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:53,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-12 07:56:53,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725304727] [2024-11-12 07:56:53,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:53,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 07:56:53,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:53,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 07:56:53,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-12 07:56:53,398 INFO L87 Difference]: Start difference. First operand 223 states and 318 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:54,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:54,449 INFO L93 Difference]: Finished difference Result 503 states and 716 transitions. [2024-11-12 07:56:54,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 07:56:54,450 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2024-11-12 07:56:54,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:54,452 INFO L225 Difference]: With dead ends: 503 [2024-11-12 07:56:54,452 INFO L226 Difference]: Without dead ends: 283 [2024-11-12 07:56:54,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-12 07:56:54,454 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 251 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:54,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1580 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-12 07:56:54,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-12 07:56:54,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 231. [2024-11-12 07:56:54,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 212 states have (on average 1.3962264150943395) internal successors, (296), 212 states have internal predecessors, (296), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:54,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 330 transitions. [2024-11-12 07:56:54,472 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 330 transitions. Word has length 157 [2024-11-12 07:56:54,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:54,472 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 330 transitions. [2024-11-12 07:56:54,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:54,473 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 330 transitions. [2024-11-12 07:56:54,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 07:56:54,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:54,474 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:54,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-12 07:56:54,475 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:54,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:54,475 INFO L85 PathProgramCache]: Analyzing trace with hash 28567498, now seen corresponding path program 1 times [2024-11-12 07:56:54,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:54,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351519752] [2024-11-12 07:56:54,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:54,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:56:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:56:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:56:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:56:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:56:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:56:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:56:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:56:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:56:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:56:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:56:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:56:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:56:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:56:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:56:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:56:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:56:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:56:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:56:55,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:56:55,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351519752] [2024-11-12 07:56:55,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351519752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:56:55,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:56:55,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 07:56:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694523558] [2024-11-12 07:56:55,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:56:55,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 07:56:55,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:56:55,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 07:56:55,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-12 07:56:55,526 INFO L87 Difference]: Start difference. First operand 231 states and 330 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:56,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:56:56,255 INFO L93 Difference]: Finished difference Result 506 states and 721 transitions. [2024-11-12 07:56:56,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 07:56:56,256 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2024-11-12 07:56:56,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:56:56,258 INFO L225 Difference]: With dead ends: 506 [2024-11-12 07:56:56,258 INFO L226 Difference]: Without dead ends: 278 [2024-11-12 07:56:56,259 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-12 07:56:56,259 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 295 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-12 07:56:56,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1041 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-12 07:56:56,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-11-12 07:56:56,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 231. [2024-11-12 07:56:56,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 212 states have (on average 1.3915094339622642) internal successors, (295), 212 states have internal predecessors, (295), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:56:56,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 329 transitions. [2024-11-12 07:56:56,271 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 329 transitions. Word has length 157 [2024-11-12 07:56:56,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:56:56,271 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 329 transitions. [2024-11-12 07:56:56,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-12 07:56:56,272 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 329 transitions. [2024-11-12 07:56:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 07:56:56,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:56:56,273 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:56:56,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-12 07:56:56,273 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:56:56,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:56:56,275 INFO L85 PathProgramCache]: Analyzing trace with hash -755802482, now seen corresponding path program 1 times [2024-11-12 07:56:56,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:56:56,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613638783] [2024-11-12 07:56:56,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:56:56,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:56:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:00,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:57:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:00,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:57:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:00,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:57:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:00,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:57:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:01,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:57:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:01,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:57:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:01,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:57:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:01,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:57:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:01,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:57:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:01,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:57:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:01,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:57:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:01,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:57:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:01,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:57:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:01,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:57:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:01,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:57:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:01,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:57:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:01,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:57:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:01,222 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:57:01,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:57:01,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613638783] [2024-11-12 07:57:01,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613638783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:57:01,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:57:01,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-12 07:57:01,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54597395] [2024-11-12 07:57:01,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:57:01,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-12 07:57:01,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:57:01,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-12 07:57:01,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-12 07:57:01,226 INFO L87 Difference]: Start difference. First operand 231 states and 329 transitions. Second operand has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 states have internal predecessors, (75), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-12 07:57:02,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:57:02,702 INFO L93 Difference]: Finished difference Result 511 states and 727 transitions. [2024-11-12 07:57:02,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 07:57:02,702 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 states have internal predecessors, (75), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 157 [2024-11-12 07:57:02,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:57:02,704 INFO L225 Difference]: With dead ends: 511 [2024-11-12 07:57:02,704 INFO L226 Difference]: Without dead ends: 283 [2024-11-12 07:57:02,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-12 07:57:02,705 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 750 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-12 07:57:02,705 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1036 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-12 07:57:02,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-12 07:57:02,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 233. [2024-11-12 07:57:02,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 214 states have (on average 1.3925233644859814) internal successors, (298), 214 states have internal predecessors, (298), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 07:57:02,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 332 transitions. [2024-11-12 07:57:02,725 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 332 transitions. Word has length 157 [2024-11-12 07:57:02,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:57:02,726 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 332 transitions. [2024-11-12 07:57:02,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 states have internal predecessors, (75), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-12 07:57:02,726 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 332 transitions. [2024-11-12 07:57:02,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 07:57:02,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:57:02,728 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:57:02,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-12 07:57:02,728 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:57:02,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:57:02,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1776870836, now seen corresponding path program 1 times [2024-11-12 07:57:02,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:57:02,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010973651] [2024-11-12 07:57:02,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:57:02,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:57:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:57:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:57:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:57:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:57:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:57:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:57:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:57:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:57:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:57:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:57:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:57:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:57:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:57:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:57:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:57:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:57:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:57:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:04,912 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 27 proven. 21 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-12 07:57:04,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:57:04,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010973651] [2024-11-12 07:57:04,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010973651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 07:57:04,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032195830] [2024-11-12 07:57:04,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:57:04,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 07:57:04,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 07:57:04,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 07:57:04,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 07:57:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:05,342 INFO L256 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-11-12 07:57:05,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 07:57:06,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 07:57:07,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 07:57:07,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 07:57:08,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-12 07:57:09,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-12 07:57:09,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-12 07:57:09,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-12 07:57:10,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-12 07:57:10,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-12 07:57:11,080 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 33 treesize of output 26 [2024-11-12 07:57:11,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2024-11-12 07:57:11,101 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 44 treesize of output 37 [2024-11-12 07:57:11,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2024-11-12 07:57:11,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2024-11-12 07:57:11,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,224 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-12 07:57:11,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 39 [2024-11-12 07:57:11,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,305 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-12 07:57:11,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 42 [2024-11-12 07:57:11,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 07:57:11,363 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 07:57:11,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 31 [2024-11-12 07:57:11,388 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 249 proven. 82 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2024-11-12 07:57:11,389 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 07:57:11,448 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2593 (Array Int Int))) (or (< 0 (+ (select (select (store |c_#memory_int| c_~WrapperStruct00_var_1_15_Pointer~0.base v_ArrVal_2593) c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset) 1)) (not (= v_ArrVal_2593 (store (select |c_#memory_int| c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset (select v_ArrVal_2593 c_~WrapperStruct00_var_1_15_Pointer~0.offset)))))) is different from false [2024-11-12 07:57:11,576 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2591 Int) (v_ArrVal_2590 Int) (v_ArrVal_2593 (Array Int Int))) (let ((.cse0 (let ((.cse1 (let ((.cse2 (let ((.cse3 (store |c_#memory_int| c_~WrapperStruct00_var_1_22_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_22_Pointer~0.base) c_~WrapperStruct00_var_1_22_Pointer~0.offset v_ArrVal_2591)))) (store .cse3 c_~WrapperStruct00_var_1_23_Pointer~0.base (store (select .cse3 c_~WrapperStruct00_var_1_23_Pointer~0.base) c_~WrapperStruct00_var_1_23_Pointer~0.offset (select (select .cse3 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset)))))) (store .cse2 c_~WrapperStruct00_var_1_24_Pointer~0.base (store (select .cse2 c_~WrapperStruct00_var_1_24_Pointer~0.base) c_~WrapperStruct00_var_1_24_Pointer~0.offset v_ArrVal_2590))))) (store .cse1 c_~WrapperStruct00_var_1_12_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset (select (select .cse1 c_~WrapperStruct00_var_1_14_Pointer~0.base) c_~WrapperStruct00_var_1_14_Pointer~0.offset)))))) (or (< 0 (+ (select (select (store .cse0 c_~WrapperStruct00_var_1_15_Pointer~0.base v_ArrVal_2593) c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset) 1)) (not (= (store (select .cse0 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset (select v_ArrVal_2593 c_~WrapperStruct00_var_1_15_Pointer~0.offset)) v_ArrVal_2593))))) is different from false [2024-11-12 07:57:11,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032195830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 07:57:11,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 07:57:11,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2024-11-12 07:57:11,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915583295] [2024-11-12 07:57:11,649 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 07:57:11,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-12 07:57:11,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:57:11,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-12 07:57:11,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=474, Unknown=2, NotChecked=90, Total=650 [2024-11-12 07:57:11,653 INFO L87 Difference]: Start difference. First operand 233 states and 332 transitions. Second operand has 22 states, 20 states have (on average 6.75) internal successors, (135), 22 states have internal predecessors, (135), 8 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 6 states have call predecessors, (34), 8 states have call successors, (34) [2024-11-12 07:57:13,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:57:13,863 INFO L93 Difference]: Finished difference Result 606 states and 852 transitions. [2024-11-12 07:57:13,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-12 07:57:13,864 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 6.75) internal successors, (135), 22 states have internal predecessors, (135), 8 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 6 states have call predecessors, (34), 8 states have call successors, (34) Word has length 157 [2024-11-12 07:57:13,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:57:13,866 INFO L225 Difference]: With dead ends: 606 [2024-11-12 07:57:13,866 INFO L226 Difference]: Without dead ends: 376 [2024-11-12 07:57:13,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=270, Invalid=1068, Unknown=2, NotChecked=142, Total=1482 [2024-11-12 07:57:13,867 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 1060 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-12 07:57:13,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 1402 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-12 07:57:13,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-12 07:57:13,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 320. [2024-11-12 07:57:13,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 281 states have (on average 1.3558718861209964) internal successors, (381), 283 states have internal predecessors, (381), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-12 07:57:13,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 451 transitions. [2024-11-12 07:57:13,916 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 451 transitions. Word has length 157 [2024-11-12 07:57:13,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:57:13,916 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 451 transitions. [2024-11-12 07:57:13,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 6.75) internal successors, (135), 22 states have internal predecessors, (135), 8 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 6 states have call predecessors, (34), 8 states have call successors, (34) [2024-11-12 07:57:13,917 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 451 transitions. [2024-11-12 07:57:13,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 07:57:13,918 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:57:13,918 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:57:13,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 07:57:14,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-12 07:57:14,123 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:57:14,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:57:14,123 INFO L85 PathProgramCache]: Analyzing trace with hash 146357198, now seen corresponding path program 1 times [2024-11-12 07:57:14,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:57:14,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25555439] [2024-11-12 07:57:14,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:57:14,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:57:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 07:57:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 07:57:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 07:57:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 07:57:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 07:57:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 07:57:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-12 07:57:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 07:57:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 07:57:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 07:57:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 07:57:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 07:57:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 07:57:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 07:57:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-12 07:57:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-12 07:57:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-12 07:57:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 07:57:16,361 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-12 07:57:16,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 07:57:16,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25555439] [2024-11-12 07:57:16,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25555439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 07:57:16,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 07:57:16,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-12 07:57:16,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071014553] [2024-11-12 07:57:16,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 07:57:16,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 07:57:16,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 07:57:16,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 07:57:16,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-12 07:57:16,363 INFO L87 Difference]: Start difference. First operand 320 states and 451 transitions. Second operand has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-12 07:57:17,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 07:57:17,354 INFO L93 Difference]: Finished difference Result 730 states and 1026 transitions. [2024-11-12 07:57:17,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 07:57:17,354 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 157 [2024-11-12 07:57:17,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 07:57:17,360 INFO L225 Difference]: With dead ends: 730 [2024-11-12 07:57:17,360 INFO L226 Difference]: Without dead ends: 432 [2024-11-12 07:57:17,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-11-12 07:57:17,365 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 1008 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-12 07:57:17,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 735 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-12 07:57:17,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-12 07:57:17,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 327. [2024-11-12 07:57:17,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 288 states have (on average 1.3506944444444444) internal successors, (389), 290 states have internal predecessors, (389), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-12 07:57:17,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 459 transitions. [2024-11-12 07:57:17,420 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 459 transitions. Word has length 157 [2024-11-12 07:57:17,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 07:57:17,420 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 459 transitions. [2024-11-12 07:57:17,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-12 07:57:17,421 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 459 transitions. [2024-11-12 07:57:17,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-12 07:57:17,422 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 07:57:17,422 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 07:57:17,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-12 07:57:17,423 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 07:57:17,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 07:57:17,423 INFO L85 PathProgramCache]: Analyzing trace with hash -671291252, now seen corresponding path program 1 times [2024-11-12 07:57:17,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 07:57:17,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599800842] [2024-11-12 07:57:17,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 07:57:17,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 07:57:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat