./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-86.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 6abe9611945b9347dad66f4454ebe10d21d58cf2fa4c1fd6e8973cdda78a961e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 09:09:38,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 09:09:38,221 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 09:09:38,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 09:09:38,231 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 09:09:38,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 09:09:38,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 09:09:38,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 09:09:38,246 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 09:09:38,246 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 09:09:38,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 09:09:38,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 09:09:38,247 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 09:09:38,247 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 09:09:38,248 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 09:09:38,248 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 09:09:38,248 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 09:09:38,248 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 09:09:38,249 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 09:09:38,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 09:09:38,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 09:09:38,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 09:09:38,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 09:09:38,253 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 09:09:38,253 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 09:09:38,253 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 09:09:38,253 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 09:09:38,254 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 09:09:38,254 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 09:09:38,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 09:09:38,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 09:09:38,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 09:09:38,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 09:09:38,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 09:09:38,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 09:09:38,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 09:09:38,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 09:09:38,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 09:09:38,255 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 09:09:38,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 09:09:38,256 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 09:09:38,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 09:09:38,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6abe9611945b9347dad66f4454ebe10d21d58cf2fa4c1fd6e8973cdda78a961e [2024-10-14 09:09:38,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 09:09:38,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 09:09:38,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 09:09:38,515 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 09:09:38,515 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 09:09:38,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-86.i [2024-10-14 09:09:39,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 09:09:40,022 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 09:09:40,022 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-86.i [2024-10-14 09:09:40,039 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5c0ca298/9340e99aceaf4aa7aef83c5bf0a1c6c4/FLAG2b3fc8d5b [2024-10-14 09:09:40,054 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5c0ca298/9340e99aceaf4aa7aef83c5bf0a1c6c4 [2024-10-14 09:09:40,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 09:09:40,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 09:09:40,063 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 09:09:40,063 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 09:09:40,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 09:09:40,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:09:40" (1/1) ... [2024-10-14 09:09:40,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c7ed8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40, skipping insertion in model container [2024-10-14 09:09:40,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:09:40" (1/1) ... [2024-10-14 09:09:40,099 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 09:09:40,271 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-86.i[919,932] [2024-10-14 09:09:40,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 09:09:40,340 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 09:09:40,349 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-86.i[919,932] [2024-10-14 09:09:40,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 09:09:40,404 INFO L204 MainTranslator]: Completed translation [2024-10-14 09:09:40,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40 WrapperNode [2024-10-14 09:09:40,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 09:09:40,406 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 09:09:40,406 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 09:09:40,406 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 09:09:40,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40" (1/1) ... [2024-10-14 09:09:40,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40" (1/1) ... [2024-10-14 09:09:40,461 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 236 [2024-10-14 09:09:40,462 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 09:09:40,463 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 09:09:40,463 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 09:09:40,463 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 09:09:40,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40" (1/1) ... [2024-10-14 09:09:40,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40" (1/1) ... [2024-10-14 09:09:40,480 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40" (1/1) ... [2024-10-14 09:09:40,509 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 09:09:40,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40" (1/1) ... [2024-10-14 09:09:40,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40" (1/1) ... [2024-10-14 09:09:40,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40" (1/1) ... [2024-10-14 09:09:40,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40" (1/1) ... [2024-10-14 09:09:40,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40" (1/1) ... [2024-10-14 09:09:40,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40" (1/1) ... [2024-10-14 09:09:40,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 09:09:40,548 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 09:09:40,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 09:09:40,549 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 09:09:40,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40" (1/1) ... [2024-10-14 09:09:40,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 09:09:40,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:09:40,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 09:09:40,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 09:09:40,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 09:09:40,625 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 09:09:40,626 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 09:09:40,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 09:09:40,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 09:09:40,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 09:09:40,700 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 09:09:40,701 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 09:09:41,137 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-10-14 09:09:41,138 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 09:09:41,173 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 09:09:41,174 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 09:09:41,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:09:41 BoogieIcfgContainer [2024-10-14 09:09:41,175 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 09:09:41,178 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 09:09:41,178 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 09:09:41,181 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 09:09:41,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:09:40" (1/3) ... [2024-10-14 09:09:41,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58282cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:09:41, skipping insertion in model container [2024-10-14 09:09:41,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:09:40" (2/3) ... [2024-10-14 09:09:41,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58282cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:09:41, skipping insertion in model container [2024-10-14 09:09:41,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:09:41" (3/3) ... [2024-10-14 09:09:41,185 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-86.i [2024-10-14 09:09:41,205 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 09:09:41,205 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 09:09:41,274 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 09:09:41,281 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;@563629a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 09:09:41,281 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 09:09:41,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 61 states have (on average 1.540983606557377) internal successors, (94), 62 states have internal predecessors, (94), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 09:09:41,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-14 09:09:41,301 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:09:41,302 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:09:41,303 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:09:41,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:09:41,309 INFO L85 PathProgramCache]: Analyzing trace with hash 431049463, now seen corresponding path program 1 times [2024-10-14 09:09:41,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:09:41,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109945375] [2024-10-14 09:09:41,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:09:41,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:09:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:09:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:09:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:09:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:09:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:09:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:09:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:09:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:09:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:09:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:09:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:09:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:09:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:09:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:09:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:09:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:09:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 09:09:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:09:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 09:09:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:09:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 09:09:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:09:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 09:09:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:09:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 09:09:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:09:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 09:09:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:41,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 09:09:41,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:09:41,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109945375] [2024-10-14 09:09:41,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109945375] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:09:41,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:09:41,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 09:09:41,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998037121] [2024-10-14 09:09:41,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:09:41,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 09:09:41,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:09:41,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 09:09:41,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 09:09:41,785 INFO L87 Difference]: Start difference. First operand has 91 states, 61 states have (on average 1.540983606557377) internal successors, (94), 62 states have internal predecessors, (94), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-14 09:09:41,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:09:41,820 INFO L93 Difference]: Finished difference Result 179 states and 321 transitions. [2024-10-14 09:09:41,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 09:09:41,822 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 170 [2024-10-14 09:09:41,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:09:41,829 INFO L225 Difference]: With dead ends: 179 [2024-10-14 09:09:41,829 INFO L226 Difference]: Without dead ends: 89 [2024-10-14 09:09:41,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 09:09:41,839 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 09:09:41,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 09:09:41,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-10-14 09:09:41,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-10-14 09:09:41,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 60 states have (on average 1.4666666666666666) internal successors, (88), 60 states have internal predecessors, (88), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 09:09:41,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 142 transitions. [2024-10-14 09:09:41,883 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 142 transitions. Word has length 170 [2024-10-14 09:09:41,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:09:41,883 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 142 transitions. [2024-10-14 09:09:41,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-14 09:09:41,884 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 142 transitions. [2024-10-14 09:09:41,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-14 09:09:41,886 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:09:41,887 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:09:41,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 09:09:41,887 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:09:41,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:09:41,888 INFO L85 PathProgramCache]: Analyzing trace with hash 728615097, now seen corresponding path program 1 times [2024-10-14 09:09:41,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:09:41,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948146] [2024-10-14 09:09:41,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:09:41,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:09:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:09:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:09:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:09:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:09:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:09:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:09:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:09:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:09:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:09:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:09:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:09:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:09:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:09:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:09:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:09:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:09:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 09:09:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:09:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 09:09:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:09:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 09:09:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:09:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 09:09:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:09:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 09:09:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:09:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 09:09:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 09:09:42,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:09:42,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948146] [2024-10-14 09:09:42,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:09:42,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:09:42,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 09:09:42,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436678784] [2024-10-14 09:09:42,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:09:42,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 09:09:42,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:09:42,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 09:09:42,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 09:09:42,219 INFO L87 Difference]: Start difference. First operand 89 states and 142 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:09:42,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:09:42,272 INFO L93 Difference]: Finished difference Result 178 states and 285 transitions. [2024-10-14 09:09:42,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 09:09:42,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-14 09:09:42,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:09:42,275 INFO L225 Difference]: With dead ends: 178 [2024-10-14 09:09:42,276 INFO L226 Difference]: Without dead ends: 90 [2024-10-14 09:09:42,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 09:09:42,281 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 09:09:42,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 271 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 09:09:42,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-14 09:09:42,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-14 09:09:42,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.459016393442623) internal successors, (89), 61 states have internal predecessors, (89), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 09:09:42,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 143 transitions. [2024-10-14 09:09:42,299 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 143 transitions. Word has length 170 [2024-10-14 09:09:42,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:09:42,301 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 143 transitions. [2024-10-14 09:09:42,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:09:42,302 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 143 transitions. [2024-10-14 09:09:42,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-14 09:09:42,305 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:09:42,305 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:09:42,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 09:09:42,306 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:09:42,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:09:42,306 INFO L85 PathProgramCache]: Analyzing trace with hash 785873399, now seen corresponding path program 1 times [2024-10-14 09:09:42,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:09:42,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733300446] [2024-10-14 09:09:42,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:09:42,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:09:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:09:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:09:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:09:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:09:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:09:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:09:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:09:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:09:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:09:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:09:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:09:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:09:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:09:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:09:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:09:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:09:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 09:09:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:09:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 09:09:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:09:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 09:09:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:09:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 09:09:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:09:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 09:09:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:09:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 09:09:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:42,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 09:09:42,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:09:42,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733300446] [2024-10-14 09:09:42,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733300446] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:09:42,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:09:42,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 09:09:42,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993191537] [2024-10-14 09:09:42,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:09:42,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 09:09:42,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:09:42,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 09:09:42,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 09:09:42,708 INFO L87 Difference]: Start difference. First operand 90 states and 143 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:09:42,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:09:42,975 INFO L93 Difference]: Finished difference Result 269 states and 428 transitions. [2024-10-14 09:09:42,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 09:09:42,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-14 09:09:42,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:09:42,979 INFO L225 Difference]: With dead ends: 269 [2024-10-14 09:09:42,983 INFO L226 Difference]: Without dead ends: 180 [2024-10-14 09:09:42,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 09:09:42,987 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 110 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 09:09:42,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 487 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 09:09:42,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-10-14 09:09:43,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 136. [2024-10-14 09:09:43,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 79 states have (on average 1.3544303797468353) internal successors, (107), 79 states have internal predecessors, (107), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-14 09:09:43,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 215 transitions. [2024-10-14 09:09:43,011 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 215 transitions. Word has length 170 [2024-10-14 09:09:43,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:09:43,012 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 215 transitions. [2024-10-14 09:09:43,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:09:43,012 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 215 transitions. [2024-10-14 09:09:43,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-14 09:09:43,014 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:09:43,014 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:09:43,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 09:09:43,015 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:09:43,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:09:43,015 INFO L85 PathProgramCache]: Analyzing trace with hash -31775051, now seen corresponding path program 1 times [2024-10-14 09:09:43,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:09:43,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653278238] [2024-10-14 09:09:43,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:09:43,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:09:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:09:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:09:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:09:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:09:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:09:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:09:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:09:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:09:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:09:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:09:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:09:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:09:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:09:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:09:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:09:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:09:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 09:09:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:09:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 09:09:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:09:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 09:09:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:09:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 09:09:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:09:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 09:09:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:09:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 09:09:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:50,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 09:09:50,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:09:50,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653278238] [2024-10-14 09:09:50,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653278238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:09:50,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:09:50,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 09:09:50,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629864856] [2024-10-14 09:09:50,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:09:50,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 09:09:50,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:09:50,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 09:09:50,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-10-14 09:09:50,973 INFO L87 Difference]: Start difference. First operand 136 states and 215 transitions. Second operand has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:09:55,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:09:55,762 INFO L93 Difference]: Finished difference Result 451 states and 714 transitions. [2024-10-14 09:09:55,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 09:09:55,764 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-14 09:09:55,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:09:55,768 INFO L225 Difference]: With dead ends: 451 [2024-10-14 09:09:55,768 INFO L226 Difference]: Without dead ends: 362 [2024-10-14 09:09:55,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=179, Invalid=523, Unknown=0, NotChecked=0, Total=702 [2024-10-14 09:09:55,772 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 1219 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-14 09:09:55,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 848 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-14 09:09:55,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-10-14 09:09:55,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 177. [2024-10-14 09:09:55,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 120 states have (on average 1.425) internal successors, (171), 120 states have internal predecessors, (171), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-14 09:09:55,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 279 transitions. [2024-10-14 09:09:55,793 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 279 transitions. Word has length 170 [2024-10-14 09:09:55,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:09:55,794 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 279 transitions. [2024-10-14 09:09:55,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:09:55,794 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 279 transitions. [2024-10-14 09:09:55,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-14 09:09:55,796 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:09:55,796 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:09:55,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 09:09:55,796 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:09:55,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:09:55,797 INFO L85 PathProgramCache]: Analyzing trace with hash -424802061, now seen corresponding path program 1 times [2024-10-14 09:09:55,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:09:55,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641929027] [2024-10-14 09:09:55,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:09:55,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:09:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:09:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:09:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:09:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:09:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:09:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:09:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:09:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:09:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:09:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:09:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:09:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:09:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:09:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:09:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:09:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:09:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 09:09:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:09:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 09:09:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:09:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 09:09:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:09:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 09:09:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:09:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 09:09:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:09:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 09:09:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 09:09:56,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:09:56,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641929027] [2024-10-14 09:09:56,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641929027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:09:56,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:09:56,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 09:09:56,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211172205] [2024-10-14 09:09:56,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:09:56,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 09:09:56,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:09:56,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 09:09:56,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 09:09:56,084 INFO L87 Difference]: Start difference. First operand 177 states and 279 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:09:56,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:09:56,152 INFO L93 Difference]: Finished difference Result 345 states and 545 transitions. [2024-10-14 09:09:56,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 09:09:56,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-14 09:09:56,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:09:56,155 INFO L225 Difference]: With dead ends: 345 [2024-10-14 09:09:56,156 INFO L226 Difference]: Without dead ends: 256 [2024-10-14 09:09:56,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 09:09:56,158 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 162 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 09:09:56,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 310 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 09:09:56,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-10-14 09:09:56,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 191. [2024-10-14 09:09:56,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 134 states have (on average 1.4253731343283582) internal successors, (191), 134 states have internal predecessors, (191), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-14 09:09:56,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 299 transitions. [2024-10-14 09:09:56,186 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 299 transitions. Word has length 170 [2024-10-14 09:09:56,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:09:56,187 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 299 transitions. [2024-10-14 09:09:56,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:09:56,189 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 299 transitions. [2024-10-14 09:09:56,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-14 09:09:56,193 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:09:56,193 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:09:56,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 09:09:56,194 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:09:56,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:09:56,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1620122953, now seen corresponding path program 1 times [2024-10-14 09:09:56,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:09:56,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834503442] [2024-10-14 09:09:56,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:09:56,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:09:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:09:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:09:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:09:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:09:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:09:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:09:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:09:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:09:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:09:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:09:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:09:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:09:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:09:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:09:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:09:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:09:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 09:09:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:09:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 09:09:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:09:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 09:09:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:09:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 09:09:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:09:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 09:09:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:09:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 09:09:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:09:56,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 09:09:56,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:09:56,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834503442] [2024-10-14 09:09:56,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834503442] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:09:56,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:09:56,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 09:09:56,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195921155] [2024-10-14 09:09:56,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:09:56,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 09:09:56,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:09:56,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 09:09:56,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 09:09:56,301 INFO L87 Difference]: Start difference. First operand 191 states and 299 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:09:56,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:09:56,341 INFO L93 Difference]: Finished difference Result 378 states and 595 transitions. [2024-10-14 09:09:56,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 09:09:56,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-14 09:09:56,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:09:56,345 INFO L225 Difference]: With dead ends: 378 [2024-10-14 09:09:56,346 INFO L226 Difference]: Without dead ends: 271 [2024-10-14 09:09:56,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 09:09:56,347 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 134 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 09:09:56,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 321 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 09:09:56,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-10-14 09:09:56,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 269. [2024-10-14 09:09:56,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 184 states have (on average 1.4130434782608696) internal successors, (260), 184 states have internal predecessors, (260), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-14 09:09:56,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 422 transitions. [2024-10-14 09:09:56,370 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 422 transitions. Word has length 170 [2024-10-14 09:09:56,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:09:56,371 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 422 transitions. [2024-10-14 09:09:56,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:09:56,372 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 422 transitions. [2024-10-14 09:09:56,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 09:09:56,373 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:09:56,373 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:09:56,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 09:09:56,374 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:09:56,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:09:56,374 INFO L85 PathProgramCache]: Analyzing trace with hash 410482517, now seen corresponding path program 1 times [2024-10-14 09:09:56,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:09:56,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338011508] [2024-10-14 09:09:56,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:09:56,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:09:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:10:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:10:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:10:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:10:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:10:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:10:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:10:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:10:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:10:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:10:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:10:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:10:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:10:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:10:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:10:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:10:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 09:10:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:10:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 09:10:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:10:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 09:10:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:10:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 09:10:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:10:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 09:10:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:10:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 09:10:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:01,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 09:10:01,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:10:01,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338011508] [2024-10-14 09:10:01,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338011508] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:10:01,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:10:01,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 09:10:01,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254536737] [2024-10-14 09:10:01,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:10:01,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 09:10:01,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:10:01,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 09:10:01,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-10-14 09:10:01,944 INFO L87 Difference]: Start difference. First operand 269 states and 422 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:10:06,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:10:06,872 INFO L93 Difference]: Finished difference Result 419 states and 648 transitions. [2024-10-14 09:10:06,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 09:10:06,873 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-14 09:10:06,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:10:06,875 INFO L225 Difference]: With dead ends: 419 [2024-10-14 09:10:06,875 INFO L226 Difference]: Without dead ends: 417 [2024-10-14 09:10:06,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2024-10-14 09:10:06,877 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 761 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-14 09:10:06,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 1046 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-14 09:10:06,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-10-14 09:10:06,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 270. [2024-10-14 09:10:06,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 185 states have (on average 1.4108108108108108) internal successors, (261), 185 states have internal predecessors, (261), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-14 09:10:06,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 423 transitions. [2024-10-14 09:10:06,894 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 423 transitions. Word has length 171 [2024-10-14 09:10:06,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:10:06,894 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 423 transitions. [2024-10-14 09:10:06,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:10:06,895 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 423 transitions. [2024-10-14 09:10:06,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 09:10:06,896 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:10:06,896 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:10:06,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 09:10:06,896 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:10:06,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:10:06,897 INFO L85 PathProgramCache]: Analyzing trace with hash 322385903, now seen corresponding path program 1 times [2024-10-14 09:10:06,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:10:06,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836777088] [2024-10-14 09:10:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:06,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:10:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:10:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:10:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:10:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:10:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:10:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:10:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:10:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:10:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:10:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:10:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:10:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:10:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:10:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:10:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:10:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:10:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 09:10:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:10:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 09:10:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:10:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 09:10:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:10:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 09:10:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:10:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 09:10:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:10:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 09:10:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:07,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 09:10:07,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:10:07,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836777088] [2024-10-14 09:10:07,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836777088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:10:07,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:10:07,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 09:10:07,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133900023] [2024-10-14 09:10:07,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:10:07,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 09:10:07,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:10:07,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 09:10:07,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 09:10:07,141 INFO L87 Difference]: Start difference. First operand 270 states and 423 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:10:07,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:10:07,180 INFO L93 Difference]: Finished difference Result 517 states and 815 transitions. [2024-10-14 09:10:07,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 09:10:07,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-14 09:10:07,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:10:07,184 INFO L225 Difference]: With dead ends: 517 [2024-10-14 09:10:07,184 INFO L226 Difference]: Without dead ends: 332 [2024-10-14 09:10:07,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 09:10:07,185 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 47 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 09:10:07,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 302 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 09:10:07,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-10-14 09:10:07,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 270. [2024-10-14 09:10:07,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 185 states have (on average 1.3945945945945946) internal successors, (258), 185 states have internal predecessors, (258), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-14 09:10:07,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 420 transitions. [2024-10-14 09:10:07,204 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 420 transitions. Word has length 171 [2024-10-14 09:10:07,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:10:07,204 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 420 transitions. [2024-10-14 09:10:07,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:10:07,204 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 420 transitions. [2024-10-14 09:10:07,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 09:10:07,206 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:10:07,206 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:10:07,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 09:10:07,206 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:10:07,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:10:07,206 INFO L85 PathProgramCache]: Analyzing trace with hash -264420111, now seen corresponding path program 1 times [2024-10-14 09:10:07,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:10:07,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370824372] [2024-10-14 09:10:07,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:07,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:10:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:10:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:10:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:10:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:10:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:10:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:10:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:10:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:10:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:10:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:10:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:10:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:10:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:10:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:10:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:10:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:10:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 09:10:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:10:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 09:10:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:10:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 09:10:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:10:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 09:10:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:10:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 09:10:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:10:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 09:10:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:11,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 09:10:11,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:10:11,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370824372] [2024-10-14 09:10:11,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370824372] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:10:11,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:10:11,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 09:10:11,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397789834] [2024-10-14 09:10:11,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:10:11,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 09:10:11,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:10:11,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 09:10:11,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-10-14 09:10:11,929 INFO L87 Difference]: Start difference. First operand 270 states and 420 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:10:15,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:10:15,036 INFO L93 Difference]: Finished difference Result 419 states and 642 transitions. [2024-10-14 09:10:15,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 09:10:15,037 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-14 09:10:15,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:10:15,040 INFO L225 Difference]: With dead ends: 419 [2024-10-14 09:10:15,040 INFO L226 Difference]: Without dead ends: 417 [2024-10-14 09:10:15,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2024-10-14 09:10:15,041 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 772 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 09:10:15,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1133 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 09:10:15,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-10-14 09:10:15,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 273. [2024-10-14 09:10:15,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 188 states have (on average 1.3936170212765957) internal successors, (262), 188 states have internal predecessors, (262), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-14 09:10:15,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 424 transitions. [2024-10-14 09:10:15,056 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 424 transitions. Word has length 171 [2024-10-14 09:10:15,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:10:15,056 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 424 transitions. [2024-10-14 09:10:15,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:10:15,056 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 424 transitions. [2024-10-14 09:10:15,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 09:10:15,058 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:10:15,058 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:10:15,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 09:10:15,059 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:10:15,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:10:15,059 INFO L85 PathProgramCache]: Analyzing trace with hash 149427406, now seen corresponding path program 1 times [2024-10-14 09:10:15,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:10:15,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308271516] [2024-10-14 09:10:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:15,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:10:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:10:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:10:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:10:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:10:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:10:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:10:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:10:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:10:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:10:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:10:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:10:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:10:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:10:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:10:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:10:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:10:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 09:10:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:10:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 09:10:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:10:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 09:10:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:10:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 09:10:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:10:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 09:10:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:10:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 09:10:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:15,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 09:10:15,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:10:15,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308271516] [2024-10-14 09:10:15,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308271516] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:10:15,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:10:15,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 09:10:15,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751027364] [2024-10-14 09:10:15,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:10:15,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 09:10:15,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:10:15,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 09:10:15,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 09:10:15,265 INFO L87 Difference]: Start difference. First operand 273 states and 424 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:10:15,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:10:15,330 INFO L93 Difference]: Finished difference Result 528 states and 819 transitions. [2024-10-14 09:10:15,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 09:10:15,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-14 09:10:15,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:10:15,333 INFO L225 Difference]: With dead ends: 528 [2024-10-14 09:10:15,334 INFO L226 Difference]: Without dead ends: 343 [2024-10-14 09:10:15,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 09:10:15,335 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 111 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 09:10:15,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 356 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 09:10:15,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-10-14 09:10:15,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 283. [2024-10-14 09:10:15,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 198 states have (on average 1.3888888888888888) internal successors, (275), 198 states have internal predecessors, (275), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-14 09:10:15,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 437 transitions. [2024-10-14 09:10:15,352 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 437 transitions. Word has length 171 [2024-10-14 09:10:15,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:10:15,352 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 437 transitions. [2024-10-14 09:10:15,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:10:15,352 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 437 transitions. [2024-10-14 09:10:15,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 09:10:15,355 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:10:15,355 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:10:15,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 09:10:15,355 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:10:15,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:10:15,356 INFO L85 PathProgramCache]: Analyzing trace with hash -243599604, now seen corresponding path program 1 times [2024-10-14 09:10:15,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:10:15,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947163339] [2024-10-14 09:10:15,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:15,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:10:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:10:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:10:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:10:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:10:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:10:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:10:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:10:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:10:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:10:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:10:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:10:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:10:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:10:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:10:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:10:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:10:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 09:10:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:10:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 09:10:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:10:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 09:10:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:10:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 09:10:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:10:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 09:10:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:10:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 09:10:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 09:10:23,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:10:23,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947163339] [2024-10-14 09:10:23,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947163339] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:10:23,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:10:23,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 09:10:23,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795547532] [2024-10-14 09:10:23,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:10:23,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 09:10:23,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:10:23,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 09:10:23,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-10-14 09:10:23,348 INFO L87 Difference]: Start difference. First operand 283 states and 437 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:10:29,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:10:29,884 INFO L93 Difference]: Finished difference Result 510 states and 776 transitions. [2024-10-14 09:10:29,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 09:10:29,885 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-14 09:10:29,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:10:29,888 INFO L225 Difference]: With dead ends: 510 [2024-10-14 09:10:29,888 INFO L226 Difference]: Without dead ends: 508 [2024-10-14 09:10:29,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=250, Invalid=680, Unknown=0, NotChecked=0, Total=930 [2024-10-14 09:10:29,892 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 576 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-10-14 09:10:29,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1181 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-10-14 09:10:29,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-10-14 09:10:29,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 326. [2024-10-14 09:10:29,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 241 states have (on average 1.4149377593360997) internal successors, (341), 241 states have internal predecessors, (341), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-14 09:10:29,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 503 transitions. [2024-10-14 09:10:29,914 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 503 transitions. Word has length 171 [2024-10-14 09:10:29,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:10:29,915 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 503 transitions. [2024-10-14 09:10:29,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:10:29,916 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 503 transitions. [2024-10-14 09:10:29,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 09:10:29,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:10:29,917 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:10:29,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 09:10:29,917 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:10:29,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:10:29,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1523463282, now seen corresponding path program 1 times [2024-10-14 09:10:29,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:10:29,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097569026] [2024-10-14 09:10:29,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:29,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:10:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:10:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:10:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:10:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:10:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:10:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:10:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:10:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:10:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:10:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:10:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:10:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:10:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:10:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:10:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:10:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:10:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 09:10:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:10:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 09:10:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:10:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 09:10:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:10:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 09:10:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:10:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 09:10:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:10:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 09:10:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:38,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 09:10:38,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:10:38,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097569026] [2024-10-14 09:10:38,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097569026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:10:38,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:10:38,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 09:10:38,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661251919] [2024-10-14 09:10:38,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:10:38,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 09:10:38,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:10:38,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 09:10:38,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2024-10-14 09:10:38,067 INFO L87 Difference]: Start difference. First operand 326 states and 503 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:10:45,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:10:45,743 INFO L93 Difference]: Finished difference Result 502 states and 768 transitions. [2024-10-14 09:10:45,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 09:10:45,744 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-14 09:10:45,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:10:45,747 INFO L225 Difference]: With dead ends: 502 [2024-10-14 09:10:45,747 INFO L226 Difference]: Without dead ends: 500 [2024-10-14 09:10:45,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=242, Invalid=570, Unknown=0, NotChecked=0, Total=812 [2024-10-14 09:10:45,748 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 534 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-10-14 09:10:45,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1025 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-10-14 09:10:45,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-10-14 09:10:45,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 326. [2024-10-14 09:10:45,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 241 states have (on average 1.4149377593360997) internal successors, (341), 241 states have internal predecessors, (341), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-14 09:10:45,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 503 transitions. [2024-10-14 09:10:45,762 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 503 transitions. Word has length 171 [2024-10-14 09:10:45,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:10:45,763 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 503 transitions. [2024-10-14 09:10:45,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 09:10:45,763 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 503 transitions. [2024-10-14 09:10:45,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 09:10:45,764 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:10:45,764 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:10:45,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 09:10:45,765 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:10:45,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:10:45,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1788420249, now seen corresponding path program 1 times [2024-10-14 09:10:45,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:10:45,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276957426] [2024-10-14 09:10:45,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:45,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:10:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:10:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:10:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 09:10:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:10:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 09:10:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:10:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 09:10:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:10:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 09:10:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:10:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 09:10:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:10:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:10:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:10:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:10:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:10:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 09:10:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:10:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 09:10:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:10:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 09:10:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:10:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 09:10:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:10:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 09:10:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:10:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 09:10:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:50,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 09:10:50,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:10:50,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276957426] [2024-10-14 09:10:50,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276957426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:10:50,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:10:50,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-14 09:10:50,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48532819] [2024-10-14 09:10:50,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:10:50,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-14 09:10:50,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:10:50,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-14 09:10:50,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-10-14 09:10:50,478 INFO L87 Difference]: Start difference. First operand 326 states and 503 transitions. Second operand has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-14 09:10:57,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:10:57,674 INFO L93 Difference]: Finished difference Result 514 states and 790 transitions. [2024-10-14 09:10:57,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-14 09:10:57,675 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 172 [2024-10-14 09:10:57,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:10:57,678 INFO L225 Difference]: With dead ends: 514 [2024-10-14 09:10:57,678 INFO L226 Difference]: Without dead ends: 512 [2024-10-14 09:10:57,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=332, Invalid=1000, Unknown=0, NotChecked=0, Total=1332 [2024-10-14 09:10:57,679 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 913 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-14 09:10:57,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 1444 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-14 09:10:57,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-10-14 09:10:57,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 324. [2024-10-14 09:10:57,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 239 states have (on average 1.4142259414225942) internal successors, (338), 239 states have internal predecessors, (338), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-14 09:10:57,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 500 transitions. [2024-10-14 09:10:57,703 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 500 transitions. Word has length 172 [2024-10-14 09:10:57,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:10:57,703 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 500 transitions. [2024-10-14 09:10:57,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-14 09:10:57,704 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 500 transitions. [2024-10-14 09:10:57,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 09:10:57,705 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:10:57,705 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:10:57,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 09:10:57,706 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:10:57,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:10:57,706 INFO L85 PathProgramCache]: Analyzing trace with hash 2040828956, now seen corresponding path program 1 times [2024-10-14 09:10:57,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:10:57,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042557798] [2024-10-14 09:10:57,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:57,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:10:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat