./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-34.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 c9a61aaa8a2d24f80a58e864d1bce01bb7b7956b51190c2b8e5fc48a6872e407 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 21:30:49,490 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 21:30:49,543 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 21:30:49,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 21:30:49,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 21:30:49,564 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 21:30:49,565 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 21:30:49,565 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 21:30:49,566 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 21:30:49,567 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 21:30:49,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 21:30:49,567 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 21:30:49,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 21:30:49,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 21:30:49,568 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 21:30:49,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 21:30:49,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 21:30:49,568 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 21:30:49,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 21:30:49,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 21:30:49,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 21:30:49,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 21:30:49,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 21:30:49,572 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 21:30:49,572 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 21:30:49,573 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 21:30:49,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 21:30:49,573 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 21:30:49,573 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 21:30:49,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 21:30:49,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 21:30:49,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 21:30:49,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 21:30:49,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 21:30:49,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 21:30:49,575 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 21:30:49,575 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 21:30:49,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 21:30:49,575 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 21:30:49,576 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 21:30:49,576 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 21:30:49,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 21:30:49,576 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9a61aaa8a2d24f80a58e864d1bce01bb7b7956b51190c2b8e5fc48a6872e407 [2024-11-08 21:30:49,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 21:30:49,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 21:30:49,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 21:30:49,799 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 21:30:49,799 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 21:30:49,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-34.i [2024-11-08 21:30:51,066 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 21:30:51,230 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 21:30:51,231 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-34.i [2024-11-08 21:30:51,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4579fd70c/c8a1774afa814b75a59501d1a12658af/FLAGa6873eb95 [2024-11-08 21:30:51,258 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4579fd70c/c8a1774afa814b75a59501d1a12658af [2024-11-08 21:30:51,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 21:30:51,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 21:30:51,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 21:30:51,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 21:30:51,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 21:30:51,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:30:51" (1/1) ... [2024-11-08 21:30:51,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a67e1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51, skipping insertion in model container [2024-11-08 21:30:51,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:30:51" (1/1) ... [2024-11-08 21:30:51,300 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 21:30:51,443 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-34.i[919,932] [2024-11-08 21:30:51,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 21:30:51,535 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 21:30:51,546 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-34.i[919,932] [2024-11-08 21:30:51,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 21:30:51,599 INFO L204 MainTranslator]: Completed translation [2024-11-08 21:30:51,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51 WrapperNode [2024-11-08 21:30:51,602 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 21:30:51,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 21:30:51,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 21:30:51,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 21:30:51,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51" (1/1) ... [2024-11-08 21:30:51,624 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51" (1/1) ... [2024-11-08 21:30:51,659 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 248 [2024-11-08 21:30:51,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 21:30:51,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 21:30:51,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 21:30:51,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 21:30:51,670 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51" (1/1) ... [2024-11-08 21:30:51,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51" (1/1) ... [2024-11-08 21:30:51,677 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51" (1/1) ... [2024-11-08 21:30:51,703 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]. [2024-11-08 21:30:51,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51" (1/1) ... [2024-11-08 21:30:51,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51" (1/1) ... [2024-11-08 21:30:51,710 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51" (1/1) ... [2024-11-08 21:30:51,713 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51" (1/1) ... [2024-11-08 21:30:51,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51" (1/1) ... [2024-11-08 21:30:51,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51" (1/1) ... [2024-11-08 21:30:51,723 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 21:30:51,724 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 21:30:51,724 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 21:30:51,724 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 21:30:51,725 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51" (1/1) ... [2024-11-08 21:30:51,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 21:30:51,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 21:30:51,765 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 21:30:51,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 21:30:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 21:30:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 21:30:51,807 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 21:30:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 21:30:51,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 21:30:51,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 21:30:51,898 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 21:30:51,900 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 21:30:52,274 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-08 21:30:52,275 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 21:30:52,288 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 21:30:52,288 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 21:30:52,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:30:52 BoogieIcfgContainer [2024-11-08 21:30:52,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 21:30:52,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 21:30:52,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 21:30:52,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 21:30:52,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 09:30:51" (1/3) ... [2024-11-08 21:30:52,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc6a9e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:30:52, skipping insertion in model container [2024-11-08 21:30:52,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:30:51" (2/3) ... [2024-11-08 21:30:52,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc6a9e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:30:52, skipping insertion in model container [2024-11-08 21:30:52,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:30:52" (3/3) ... [2024-11-08 21:30:52,297 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-34.i [2024-11-08 21:30:52,309 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 21:30:52,310 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 21:30:52,362 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 21:30:52,367 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;@125561c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 21:30:52,367 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 21:30:52,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 74 states have internal predecessors, (109), 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) [2024-11-08 21:30:52,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-08 21:30:52,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:30:52,382 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:30:52,383 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:30:52,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:30:52,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1169059913, now seen corresponding path program 1 times [2024-11-08 21:30:52,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:30:52,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5295342] [2024-11-08 21:30:52,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:30:52,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:30:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:30:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:30:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:30:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:30:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:30:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:30:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:30:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:30:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:30:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:30:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:30:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:30:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:30:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:30:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:30:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:30:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:30:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:30:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:30:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:30:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:30:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:30:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:30:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:30:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:30:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:30:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:30:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:52,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:30:52,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:30:52,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5295342] [2024-11-08 21:30:52,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5295342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:30:52,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:30:52,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 21:30:52,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774831037] [2024-11-08 21:30:52,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:30:52,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 21:30:52,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:30:52,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 21:30:52,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 21:30:52,761 INFO L87 Difference]: Start difference. First operand has 103 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 74 states have internal predecessors, (109), 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 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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) [2024-11-08 21:30:52,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:30:52,787 INFO L93 Difference]: Finished difference Result 199 states and 347 transitions. [2024-11-08 21:30:52,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 21:30:52,789 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 179 [2024-11-08 21:30:52,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:30:52,795 INFO L225 Difference]: With dead ends: 199 [2024-11-08 21:30:52,795 INFO L226 Difference]: Without dead ends: 99 [2024-11-08 21:30:52,798 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 [2024-11-08 21:30:52,800 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 21:30:52,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 21:30:52,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-08 21:30:52,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-08 21:30:52,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 70 states have (on average 1.457142857142857) internal successors, (102), 70 states have internal predecessors, (102), 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) [2024-11-08 21:30:52,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 156 transitions. [2024-11-08 21:30:52,844 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 156 transitions. Word has length 179 [2024-11-08 21:30:52,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:30:52,844 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 156 transitions. [2024-11-08 21:30:52,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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) [2024-11-08 21:30:52,845 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 156 transitions. [2024-11-08 21:30:52,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-08 21:30:52,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:30:52,848 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:30:52,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 21:30:52,848 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:30:52,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:30:52,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1712307919, now seen corresponding path program 1 times [2024-11-08 21:30:52,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:30:52,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504711052] [2024-11-08 21:30:52,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:30:52,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:30:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:30:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:30:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:30:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:30:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:30:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:30:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:30:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:30:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:30:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:30:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:30:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:30:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:30:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:30:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:30:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:30:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:30:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:30:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:30:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:30:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:30:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:30:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:30:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:30:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:30:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:30:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:30:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:30:53,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:30:53,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504711052] [2024-11-08 21:30:53,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504711052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:30:53,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:30:53,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 21:30:53,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691118516] [2024-11-08 21:30:53,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:30:53,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 21:30:53,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:30:53,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 21:30:53,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 21:30:53,374 INFO L87 Difference]: Start difference. First operand 99 states and 156 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-11-08 21:30:53,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:30:53,547 INFO L93 Difference]: Finished difference Result 331 states and 526 transitions. [2024-11-08 21:30:53,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 21:30:53,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 179 [2024-11-08 21:30:53,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:30:53,552 INFO L225 Difference]: With dead ends: 331 [2024-11-08 21:30:53,552 INFO L226 Difference]: Without dead ends: 235 [2024-11-08 21:30:53,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 21:30:53,554 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 175 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 21:30:53,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 505 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 21:30:53,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-08 21:30:53,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 195. [2024-11-08 21:30:53,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 138 states have (on average 1.4565217391304348) internal successors, (201), 138 states have internal predecessors, (201), 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) [2024-11-08 21:30:53,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 309 transitions. [2024-11-08 21:30:53,586 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 309 transitions. Word has length 179 [2024-11-08 21:30:53,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:30:53,586 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 309 transitions. [2024-11-08 21:30:53,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-11-08 21:30:53,587 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 309 transitions. [2024-11-08 21:30:53,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-08 21:30:53,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:30:53,592 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:30:53,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 21:30:53,593 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:30:53,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:30:53,593 INFO L85 PathProgramCache]: Analyzing trace with hash 409313057, now seen corresponding path program 1 times [2024-11-08 21:30:53,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:30:53,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412442606] [2024-11-08 21:30:53,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:30:53,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:30:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:30:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:30:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:30:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:30:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:30:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:30:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:30:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:30:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:30:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:30:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:30:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:30:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:30:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:30:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:30:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:30:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:30:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:30:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:30:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:30:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:30:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:30:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:30:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:30:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:30:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:30:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:30:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:30:53,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:30:53,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:30:53,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412442606] [2024-11-08 21:30:53,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412442606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:30:53,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:30:53,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 21:30:53,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931503504] [2024-11-08 21:30:53,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:30:53,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 21:30:53,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:30:53,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 21:30:53,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 21:30:53,938 INFO L87 Difference]: Start difference. First operand 195 states and 309 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (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) [2024-11-08 21:30:54,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:30:54,213 INFO L93 Difference]: Finished difference Result 574 states and 910 transitions. [2024-11-08 21:30:54,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 21:30:54,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (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 180 [2024-11-08 21:30:54,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:30:54,217 INFO L225 Difference]: With dead ends: 574 [2024-11-08 21:30:54,219 INFO L226 Difference]: Without dead ends: 382 [2024-11-08 21:30:54,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 21:30:54,222 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 194 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 21:30:54,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 456 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 21:30:54,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-08 21:30:54,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 199. [2024-11-08 21:30:54,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 142 states have (on average 1.443661971830986) internal successors, (205), 142 states have internal predecessors, (205), 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) [2024-11-08 21:30:54,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 313 transitions. [2024-11-08 21:30:54,262 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 313 transitions. Word has length 180 [2024-11-08 21:30:54,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:30:54,262 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 313 transitions. [2024-11-08 21:30:54,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (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) [2024-11-08 21:30:54,262 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 313 transitions. [2024-11-08 21:30:54,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-08 21:30:54,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:30:54,264 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:30:54,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 21:30:54,264 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:30:54,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:30:54,265 INFO L85 PathProgramCache]: Analyzing trace with hash 647551079, now seen corresponding path program 1 times [2024-11-08 21:30:54,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:30:54,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242132980] [2024-11-08 21:30:54,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:30:54,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:30:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:03,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:31:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:03,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:31:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:03,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:31:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:03,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:31:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:03,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:31:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:03,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:31:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:03,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:31:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:03,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:31:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:03,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:31:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:03,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:31:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:03,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:31:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:31:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:31:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:31:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:31:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:31:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:31:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:31:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:31:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:31:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:31:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:31:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:31:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:31:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:31:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:31:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:31:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:04,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:31:04,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:31:04,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242132980] [2024-11-08 21:31:04,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242132980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:31:04,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:31:04,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 21:31:04,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481279644] [2024-11-08 21:31:04,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:31:04,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 21:31:04,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:31:04,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 21:31:04,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-08 21:31:04,246 INFO L87 Difference]: Start difference. First operand 199 states and 313 transitions. Second operand has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 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) [2024-11-08 21:31:07,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:31:07,701 INFO L93 Difference]: Finished difference Result 763 states and 1204 transitions. [2024-11-08 21:31:07,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 21:31:07,702 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 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 181 [2024-11-08 21:31:07,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:31:07,705 INFO L225 Difference]: With dead ends: 763 [2024-11-08 21:31:07,705 INFO L226 Difference]: Without dead ends: 567 [2024-11-08 21:31:07,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2024-11-08 21:31:07,707 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 943 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 21:31:07,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 725 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 21:31:07,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-08 21:31:07,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 360. [2024-11-08 21:31:07,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 275 states have (on average 1.4654545454545456) internal successors, (403), 275 states have internal predecessors, (403), 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) [2024-11-08 21:31:07,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 565 transitions. [2024-11-08 21:31:07,748 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 565 transitions. Word has length 181 [2024-11-08 21:31:07,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:31:07,748 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 565 transitions. [2024-11-08 21:31:07,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 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) [2024-11-08 21:31:07,749 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 565 transitions. [2024-11-08 21:31:07,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-08 21:31:07,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:31:07,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:31:07,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 21:31:07,750 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:31:07,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:31:07,751 INFO L85 PathProgramCache]: Analyzing trace with hash -363566171, now seen corresponding path program 1 times [2024-11-08 21:31:07,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:31:07,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617224118] [2024-11-08 21:31:07,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:31:07,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:31:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:31:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:31:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:31:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:31:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:31:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:31:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:31:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:31:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:31:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:31:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:31:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:31:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:31:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:31:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:31:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:31:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:31:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:31:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:31:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:31:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:31:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:31:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:31:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:31:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:31:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:31:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:31:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:09,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:31:09,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:31:09,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617224118] [2024-11-08 21:31:09,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617224118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:31:09,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:31:09,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 21:31:09,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279903870] [2024-11-08 21:31:09,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:31:09,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 21:31:09,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:31:09,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 21:31:09,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 21:31:09,738 INFO L87 Difference]: Start difference. First operand 360 states and 565 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 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) [2024-11-08 21:31:10,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:31:10,708 INFO L93 Difference]: Finished difference Result 854 states and 1341 transitions. [2024-11-08 21:31:10,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 21:31:10,709 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 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 181 [2024-11-08 21:31:10,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:31:10,711 INFO L225 Difference]: With dead ends: 854 [2024-11-08 21:31:10,712 INFO L226 Difference]: Without dead ends: 628 [2024-11-08 21:31:10,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-08 21:31:10,713 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 509 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 21:31:10,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 682 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 21:31:10,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-11-08 21:31:10,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 406. [2024-11-08 21:31:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 321 states have (on average 1.4610591900311527) internal successors, (469), 321 states have internal predecessors, (469), 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) [2024-11-08 21:31:10,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 631 transitions. [2024-11-08 21:31:10,745 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 631 transitions. Word has length 181 [2024-11-08 21:31:10,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:31:10,746 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 631 transitions. [2024-11-08 21:31:10,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 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) [2024-11-08 21:31:10,746 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 631 transitions. [2024-11-08 21:31:10,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-08 21:31:10,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:31:10,748 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:31:10,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 21:31:10,748 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:31:10,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:31:10,748 INFO L85 PathProgramCache]: Analyzing trace with hash -373517275, now seen corresponding path program 1 times [2024-11-08 21:31:10,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:31:10,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996468774] [2024-11-08 21:31:10,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:31:10,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:31:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:31:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:31:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:31:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:31:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:31:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:31:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:31:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:31:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:31:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:31:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:31:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:31:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:31:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:31:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:31:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:31:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:31:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:31:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:31:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:31:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:31:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:31:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:31:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:31:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:31:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:31:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:31:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:12,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:31:12,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:31:12,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996468774] [2024-11-08 21:31:12,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996468774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:31:12,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:31:12,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 21:31:12,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339663455] [2024-11-08 21:31:12,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:31:12,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 21:31:12,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:31:12,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 21:31:12,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 21:31:12,669 INFO L87 Difference]: Start difference. First operand 406 states and 631 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 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) [2024-11-08 21:31:13,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:31:13,490 INFO L93 Difference]: Finished difference Result 917 states and 1426 transitions. [2024-11-08 21:31:13,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 21:31:13,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 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 181 [2024-11-08 21:31:13,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:31:13,493 INFO L225 Difference]: With dead ends: 917 [2024-11-08 21:31:13,494 INFO L226 Difference]: Without dead ends: 648 [2024-11-08 21:31:13,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-08 21:31:13,495 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 508 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 21:31:13,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 532 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 21:31:13,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-11-08 21:31:13,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 488. [2024-11-08 21:31:13,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 403 states have (on average 1.4863523573200992) internal successors, (599), 403 states have internal predecessors, (599), 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) [2024-11-08 21:31:13,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 761 transitions. [2024-11-08 21:31:13,540 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 761 transitions. Word has length 181 [2024-11-08 21:31:13,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:31:13,540 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 761 transitions. [2024-11-08 21:31:13,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 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) [2024-11-08 21:31:13,540 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 761 transitions. [2024-11-08 21:31:13,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-08 21:31:13,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:31:13,542 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:31:13,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 21:31:13,542 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:31:13,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:31:13,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2041982826, now seen corresponding path program 1 times [2024-11-08 21:31:13,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:31:13,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396305345] [2024-11-08 21:31:13,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:31:13,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:31:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:31:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:31:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:31:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:31:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:31:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:31:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:31:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:31:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:31:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:31:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:31:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:31:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:31:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:31:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:31:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:31:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:31:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:31:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:31:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:31:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:31:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:31:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:31:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:31:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:31:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:31:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:31:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:31:14,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:31:14,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396305345] [2024-11-08 21:31:14,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396305345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:31:14,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:31:14,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 21:31:14,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805713854] [2024-11-08 21:31:14,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:31:14,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 21:31:14,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:31:14,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 21:31:14,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 21:31:14,561 INFO L87 Difference]: Start difference. First operand 488 states and 761 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2024-11-08 21:31:14,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:31:14,890 INFO L93 Difference]: Finished difference Result 972 states and 1527 transitions. [2024-11-08 21:31:14,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 21:31:14,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 181 [2024-11-08 21:31:14,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:31:14,895 INFO L225 Difference]: With dead ends: 972 [2024-11-08 21:31:14,895 INFO L226 Difference]: Without dead ends: 684 [2024-11-08 21:31:14,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 21:31:14,900 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 270 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 21:31:14,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 559 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 21:31:14,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2024-11-08 21:31:14,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 494. [2024-11-08 21:31:14,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 409 states have (on average 1.4743276283618583) internal successors, (603), 409 states have internal predecessors, (603), 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) [2024-11-08 21:31:14,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 765 transitions. [2024-11-08 21:31:14,928 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 765 transitions. Word has length 181 [2024-11-08 21:31:14,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:31:14,928 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 765 transitions. [2024-11-08 21:31:14,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2024-11-08 21:31:14,928 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 765 transitions. [2024-11-08 21:31:14,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-08 21:31:14,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:31:14,930 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:31:14,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 21:31:14,930 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:31:14,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:31:14,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1070252905, now seen corresponding path program 1 times [2024-11-08 21:31:14,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:31:14,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848040663] [2024-11-08 21:31:14,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:31:14,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:31:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:31:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:31:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:31:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:31:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:31:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:31:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:31:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:31:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:31:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:31:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:31:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:31:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:31:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:31:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:31:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:31:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:31:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:31:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:31:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:31:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:31:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:31:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:31:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:31:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:31:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:31:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:31:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:15,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:31:15,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:31:15,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848040663] [2024-11-08 21:31:15,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848040663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:31:15,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:31:15,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 21:31:15,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273639356] [2024-11-08 21:31:15,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:31:15,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 21:31:15,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:31:15,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 21:31:15,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 21:31:15,259 INFO L87 Difference]: Start difference. First operand 494 states and 765 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-11-08 21:31:15,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:31:15,458 INFO L93 Difference]: Finished difference Result 784 states and 1226 transitions. [2024-11-08 21:31:15,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 21:31:15,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 181 [2024-11-08 21:31:15,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:31:15,460 INFO L225 Difference]: With dead ends: 784 [2024-11-08 21:31:15,460 INFO L226 Difference]: Without dead ends: 488 [2024-11-08 21:31:15,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 21:31:15,462 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 108 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 21:31:15,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 386 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 21:31:15,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-08 21:31:15,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 460. [2024-11-08 21:31:15,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 375 states have (on average 1.4426666666666668) internal successors, (541), 375 states have internal predecessors, (541), 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) [2024-11-08 21:31:15,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 703 transitions. [2024-11-08 21:31:15,487 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 703 transitions. Word has length 181 [2024-11-08 21:31:15,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:31:15,487 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 703 transitions. [2024-11-08 21:31:15,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-11-08 21:31:15,488 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 703 transitions. [2024-11-08 21:31:15,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-08 21:31:15,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:31:15,489 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:31:15,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 21:31:15,489 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:31:15,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:31:15,489 INFO L85 PathProgramCache]: Analyzing trace with hash -804213332, now seen corresponding path program 1 times [2024-11-08 21:31:15,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:31:15,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624825699] [2024-11-08 21:31:15,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:31:15,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:31:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:31:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:31:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:31:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:31:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:31:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:31:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:31:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:31:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:31:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:31:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:31:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:31:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:31:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:31:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:31:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:31:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:31:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:31:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:31:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:31:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:31:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:31:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:31:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:31:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:31:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:31:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:31:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:17,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:31:17,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:31:17,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624825699] [2024-11-08 21:31:17,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624825699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:31:17,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:31:17,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 21:31:17,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608475098] [2024-11-08 21:31:17,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:31:17,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 21:31:17,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:31:17,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 21:31:17,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-08 21:31:17,721 INFO L87 Difference]: Start difference. First operand 460 states and 703 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 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) [2024-11-08 21:31:18,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:31:18,909 INFO L93 Difference]: Finished difference Result 977 states and 1518 transitions. [2024-11-08 21:31:18,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 21:31:18,909 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 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 182 [2024-11-08 21:31:18,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:31:18,912 INFO L225 Difference]: With dead ends: 977 [2024-11-08 21:31:18,912 INFO L226 Difference]: Without dead ends: 781 [2024-11-08 21:31:18,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 21:31:18,913 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 603 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 21:31:18,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 680 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 21:31:18,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2024-11-08 21:31:18,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 556. [2024-11-08 21:31:18,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 469 states have (on average 1.4733475479744136) internal successors, (691), 469 states have internal predecessors, (691), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-08 21:31:18,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 853 transitions. [2024-11-08 21:31:18,943 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 853 transitions. Word has length 182 [2024-11-08 21:31:18,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:31:18,943 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 853 transitions. [2024-11-08 21:31:18,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 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) [2024-11-08 21:31:18,943 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 853 transitions. [2024-11-08 21:31:18,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-08 21:31:18,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:31:18,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:31:18,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 21:31:18,945 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:31:18,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:31:18,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1433845576, now seen corresponding path program 1 times [2024-11-08 21:31:18,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:31:18,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80685469] [2024-11-08 21:31:18,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:31:18,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:31:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:31:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:31:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:31:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:31:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:31:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:31:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:31:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:31:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:31:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:31:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:31:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:31:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:31:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:31:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:31:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:31:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:31:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:31:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:31:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:31:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:31:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:31:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:31:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:31:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:31:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:31:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:31:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:22,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:31:22,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:31:22,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80685469] [2024-11-08 21:31:22,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80685469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:31:22,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:31:22,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 21:31:22,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257253406] [2024-11-08 21:31:22,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:31:22,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 21:31:22,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:31:22,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 21:31:22,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-08 21:31:22,697 INFO L87 Difference]: Start difference. First operand 556 states and 853 transitions. Second operand has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 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) [2024-11-08 21:31:25,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:31:25,561 INFO L93 Difference]: Finished difference Result 1505 states and 2344 transitions. [2024-11-08 21:31:25,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 21:31:25,561 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 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 182 [2024-11-08 21:31:25,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:31:25,565 INFO L225 Difference]: With dead ends: 1505 [2024-11-08 21:31:25,565 INFO L226 Difference]: Without dead ends: 1183 [2024-11-08 21:31:25,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2024-11-08 21:31:25,566 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 801 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 21:31:25,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 824 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 21:31:25,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2024-11-08 21:31:25,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1020. [2024-11-08 21:31:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 875 states have (on average 1.5074285714285713) internal successors, (1319), 875 states have internal predecessors, (1319), 135 states have call successors, (135), 9 states have call predecessors, (135), 9 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-08 21:31:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1589 transitions. [2024-11-08 21:31:25,608 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1589 transitions. Word has length 182 [2024-11-08 21:31:25,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:31:25,609 INFO L471 AbstractCegarLoop]: Abstraction has 1020 states and 1589 transitions. [2024-11-08 21:31:25,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 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) [2024-11-08 21:31:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1589 transitions. [2024-11-08 21:31:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-08 21:31:25,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:31:25,610 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:31:25,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 21:31:25,611 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:31:25,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:31:25,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1840053366, now seen corresponding path program 1 times [2024-11-08 21:31:25,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:31:25,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128748457] [2024-11-08 21:31:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:31:25,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:31:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:31:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:31:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:31:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:31:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:31:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:31:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:31:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:31:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:31:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:31:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:31:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:31:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:31:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:31:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:31:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:31:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:31:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:31:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:31:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:31:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:31:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:31:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:31:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:31:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:31:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:31:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:31:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:28,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:31:28,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:31:28,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128748457] [2024-11-08 21:31:28,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128748457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:31:28,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:31:28,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 21:31:28,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461610901] [2024-11-08 21:31:28,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:31:28,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 21:31:28,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:31:28,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 21:31:28,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-08 21:31:28,362 INFO L87 Difference]: Start difference. First operand 1020 states and 1589 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 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) [2024-11-08 21:31:30,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:31:30,908 INFO L93 Difference]: Finished difference Result 2092 states and 3254 transitions. [2024-11-08 21:31:30,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 21:31:30,909 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 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 182 [2024-11-08 21:31:30,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:31:30,913 INFO L225 Difference]: With dead ends: 2092 [2024-11-08 21:31:30,913 INFO L226 Difference]: Without dead ends: 1570 [2024-11-08 21:31:30,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2024-11-08 21:31:30,915 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 389 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 21:31:30,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 981 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 21:31:30,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2024-11-08 21:31:30,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1142. [2024-11-08 21:31:30,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 997 states have (on average 1.5245737211634904) internal successors, (1520), 997 states have internal predecessors, (1520), 135 states have call successors, (135), 9 states have call predecessors, (135), 9 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-08 21:31:30,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1790 transitions. [2024-11-08 21:31:30,972 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1790 transitions. Word has length 182 [2024-11-08 21:31:30,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:31:30,973 INFO L471 AbstractCegarLoop]: Abstraction has 1142 states and 1790 transitions. [2024-11-08 21:31:30,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 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) [2024-11-08 21:31:30,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1790 transitions. [2024-11-08 21:31:30,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-08 21:31:30,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:31:30,975 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:31:30,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 21:31:30,975 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:31:30,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:31:30,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1682938684, now seen corresponding path program 1 times [2024-11-08 21:31:30,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:31:30,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680692333] [2024-11-08 21:31:30,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:31:30,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:31:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:31:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:31:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:31:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:31:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:31:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:31:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:31:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:31:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:31:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:31:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:31:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:31:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:31:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:31:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:31:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:31:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:31:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:31:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:31:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:31:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:31:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:31:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:31:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:31:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:31:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:31:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:31:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:31:35,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:31:35,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680692333] [2024-11-08 21:31:35,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680692333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:31:35,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:31:35,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 21:31:35,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791772112] [2024-11-08 21:31:35,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:31:35,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 21:31:35,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:31:35,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 21:31:35,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-08 21:31:35,190 INFO L87 Difference]: Start difference. First operand 1142 states and 1790 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 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) [2024-11-08 21:31:38,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:31:38,358 INFO L93 Difference]: Finished difference Result 3355 states and 5401 transitions. [2024-11-08 21:31:38,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 21:31:38,358 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 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 183 [2024-11-08 21:31:38,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:31:38,365 INFO L225 Difference]: With dead ends: 3355 [2024-11-08 21:31:38,365 INFO L226 Difference]: Without dead ends: 2501 [2024-11-08 21:31:38,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=286, Invalid=706, Unknown=0, NotChecked=0, Total=992 [2024-11-08 21:31:38,367 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 837 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 21:31:38,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 845 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 21:31:38,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2024-11-08 21:31:38,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 1267. [2024-11-08 21:31:38,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 1122 states have (on average 1.5222816399286987) internal successors, (1708), 1122 states have internal predecessors, (1708), 135 states have call successors, (135), 9 states have call predecessors, (135), 9 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-08 21:31:38,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1978 transitions. [2024-11-08 21:31:38,426 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1978 transitions. Word has length 183 [2024-11-08 21:31:38,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:31:38,426 INFO L471 AbstractCegarLoop]: Abstraction has 1267 states and 1978 transitions. [2024-11-08 21:31:38,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 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) [2024-11-08 21:31:38,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1978 transitions. [2024-11-08 21:31:38,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-08 21:31:38,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:31:38,428 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:31:38,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 21:31:38,428 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:31:38,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:31:38,429 INFO L85 PathProgramCache]: Analyzing trace with hash 341092360, now seen corresponding path program 1 times [2024-11-08 21:31:38,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:31:38,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333189579] [2024-11-08 21:31:38,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:31:38,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:31:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:31:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:31:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:31:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:31:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:31:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:31:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:31:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:31:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:31:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:31:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:31:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:31:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:31:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:31:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:31:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:31:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:31:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:31:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:31:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:31:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:31:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:31:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:31:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:31:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:31:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:31:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:31:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:44,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:31:44,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:31:44,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333189579] [2024-11-08 21:31:44,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333189579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:31:44,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:31:44,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-08 21:31:44,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884438630] [2024-11-08 21:31:44,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:31:44,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 21:31:44,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:31:44,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 21:31:44,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-08 21:31:44,255 INFO L87 Difference]: Start difference. First operand 1267 states and 1978 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 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) [2024-11-08 21:31:46,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:31:46,813 INFO L93 Difference]: Finished difference Result 2271 states and 3559 transitions. [2024-11-08 21:31:46,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 21:31:46,814 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 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 183 [2024-11-08 21:31:46,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:31:46,821 INFO L225 Difference]: With dead ends: 2271 [2024-11-08 21:31:46,821 INFO L226 Difference]: Without dead ends: 1435 [2024-11-08 21:31:46,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2024-11-08 21:31:46,825 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 636 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 21:31:46,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 912 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 21:31:46,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2024-11-08 21:31:46,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1251. [2024-11-08 21:31:46,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 1106 states have (on average 1.5162748643761301) internal successors, (1677), 1106 states have internal predecessors, (1677), 135 states have call successors, (135), 9 states have call predecessors, (135), 9 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-08 21:31:46,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1947 transitions. [2024-11-08 21:31:46,881 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1947 transitions. Word has length 183 [2024-11-08 21:31:46,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:31:46,882 INFO L471 AbstractCegarLoop]: Abstraction has 1251 states and 1947 transitions. [2024-11-08 21:31:46,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 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) [2024-11-08 21:31:46,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1947 transitions. [2024-11-08 21:31:46,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-08 21:31:46,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:31:46,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:31:46,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 21:31:46,884 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:31:46,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:31:46,884 INFO L85 PathProgramCache]: Analyzing trace with hash 331141256, now seen corresponding path program 1 times [2024-11-08 21:31:46,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:31:46,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338788939] [2024-11-08 21:31:46,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:31:46,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:31:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:49,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:31:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:49,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:31:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:49,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:31:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:49,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:31:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:49,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:31:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:49,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:31:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:49,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:31:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:49,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:31:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:49,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:31:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:49,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:31:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:49,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:31:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:49,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:31:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:31:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:31:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:31:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:31:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:31:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:31:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:31:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:31:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:31:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:31:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:31:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:31:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:31:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:31:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:31:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:31:50,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:31:50,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:31:50,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338788939] [2024-11-08 21:31:50,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338788939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:31:50,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:31:50,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 21:31:50,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950356554] [2024-11-08 21:31:50,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:31:50,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 21:31:50,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:31:50,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 21:31:50,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-08 21:31:50,235 INFO L87 Difference]: Start difference. First operand 1251 states and 1947 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 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) [2024-11-08 21:31:52,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:31:52,387 INFO L93 Difference]: Finished difference Result 2849 states and 4445 transitions. [2024-11-08 21:31:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 21:31:52,387 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 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 183 [2024-11-08 21:31:52,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:31:52,393 INFO L225 Difference]: With dead ends: 2849 [2024-11-08 21:31:52,393 INFO L226 Difference]: Without dead ends: 1862 [2024-11-08 21:31:52,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2024-11-08 21:31:52,395 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 624 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 21:31:52,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1047 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 21:31:52,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states. [2024-11-08 21:31:52,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 1387. [2024-11-08 21:31:52,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1242 states have (on average 1.5144927536231885) internal successors, (1881), 1242 states have internal predecessors, (1881), 135 states have call successors, (135), 9 states have call predecessors, (135), 9 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-08 21:31:52,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 2151 transitions. [2024-11-08 21:31:52,454 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 2151 transitions. Word has length 183 [2024-11-08 21:31:52,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:31:52,454 INFO L471 AbstractCegarLoop]: Abstraction has 1387 states and 2151 transitions. [2024-11-08 21:31:52,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 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) [2024-11-08 21:31:52,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 2151 transitions. [2024-11-08 21:31:52,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-08 21:31:52,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:31:52,455 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:31:52,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 21:31:52,456 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:31:52,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:31:52,456 INFO L85 PathProgramCache]: Analyzing trace with hash -679975994, now seen corresponding path program 1 times [2024-11-08 21:31:52,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:31:52,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452948223] [2024-11-08 21:31:52,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:31:52,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:31:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:32:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:32:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 21:32:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:32:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 21:32:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:32:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 21:32:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:32:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 21:32:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:32:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 21:32:02,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:32:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 21:32:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:32:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:32:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 21:32:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 21:32:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:32:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:32:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 21:32:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 21:32:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 21:32:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 21:32:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 21:32:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 21:32:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 21:32:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 21:32:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:02,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 21:32:02,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:32:02,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452948223] [2024-11-08 21:32:02,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452948223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:32:02,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:32:02,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 21:32:02,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240866585] [2024-11-08 21:32:02,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:32:02,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 21:32:02,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:32:02,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 21:32:02,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-08 21:32:02,343 INFO L87 Difference]: Start difference. First operand 1387 states and 2151 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 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) [2024-11-08 21:32:06,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:32:06,332 INFO L93 Difference]: Finished difference Result 2327 states and 3608 transitions. [2024-11-08 21:32:06,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 21:32:06,332 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 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 183 [2024-11-08 21:32:06,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:32:06,337 INFO L225 Difference]: With dead ends: 2327 [2024-11-08 21:32:06,337 INFO L226 Difference]: Without dead ends: 1541 [2024-11-08 21:32:06,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2024-11-08 21:32:06,339 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 335 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 21:32:06,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 921 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 21:32:06,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2024-11-08 21:32:06,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1439. [2024-11-08 21:32:06,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1294 states have (on average 1.507727975270479) internal successors, (1951), 1294 states have internal predecessors, (1951), 135 states have call successors, (135), 9 states have call predecessors, (135), 9 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-08 21:32:06,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 2221 transitions. [2024-11-08 21:32:06,403 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 2221 transitions. Word has length 183 [2024-11-08 21:32:06,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:32:06,403 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 2221 transitions. [2024-11-08 21:32:06,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 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) [2024-11-08 21:32:06,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 2221 transitions. [2024-11-08 21:32:06,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 21:32:06,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:32:06,405 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:32:06,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 21:32:06,405 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:32:06,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:32:06,405 INFO L85 PathProgramCache]: Analyzing trace with hash -814497169, now seen corresponding path program 1 times [2024-11-08 21:32:06,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:32:06,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079140755] [2024-11-08 21:32:06,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:32:06,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:32:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat