./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e62b2891163903ae3ee64b4d61486cfcc5cc9524351bb686ca581fbf5cc2640 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 02:36:42,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 02:36:42,136 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 02:36:42,141 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 02:36:42,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 02:36:42,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 02:36:42,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 02:36:42,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 02:36:42,161 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 02:36:42,163 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 02:36:42,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 02:36:42,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 02:36:42,164 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 02:36:42,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 02:36:42,165 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 02:36:42,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 02:36:42,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 02:36:42,166 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 02:36:42,166 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 02:36:42,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 02:36:42,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 02:36:42,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 02:36:42,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 02:36:42,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 02:36:42,168 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 02:36:42,169 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 02:36:42,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 02:36:42,169 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 02:36:42,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 02:36:42,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 02:36:42,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 02:36:42,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 02:36:42,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 02:36:42,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 02:36:42,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 02:36:42,171 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 02:36:42,171 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 02:36:42,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 02:36:42,171 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 02:36:42,172 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 02:36:42,172 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 02:36:42,174 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 02:36:42,175 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e62b2891163903ae3ee64b4d61486cfcc5cc9524351bb686ca581fbf5cc2640 [2024-10-13 02:36:42,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 02:36:42,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 02:36:42,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 02:36:42,418 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 02:36:42,419 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 02:36:42,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i [2024-10-13 02:36:43,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 02:36:43,776 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 02:36:43,777 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i [2024-10-13 02:36:43,785 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c45a450c/2fbb3ddfa52a49fd8ca71b49623bedf1/FLAGc623809e6 [2024-10-13 02:36:44,162 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c45a450c/2fbb3ddfa52a49fd8ca71b49623bedf1 [2024-10-13 02:36:44,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 02:36:44,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 02:36:44,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 02:36:44,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 02:36:44,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 02:36:44,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:36:44" (1/1) ... [2024-10-13 02:36:44,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41f036e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44, skipping insertion in model container [2024-10-13 02:36:44,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:36:44" (1/1) ... [2024-10-13 02:36:44,197 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 02:36:44,330 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i[919,932] [2024-10-13 02:36:44,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 02:36:44,386 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 02:36:44,395 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i[919,932] [2024-10-13 02:36:44,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 02:36:44,438 INFO L204 MainTranslator]: Completed translation [2024-10-13 02:36:44,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44 WrapperNode [2024-10-13 02:36:44,439 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 02:36:44,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 02:36:44,440 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 02:36:44,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 02:36:44,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44" (1/1) ... [2024-10-13 02:36:44,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44" (1/1) ... [2024-10-13 02:36:44,496 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 236 [2024-10-13 02:36:44,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 02:36:44,497 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 02:36:44,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 02:36:44,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 02:36:44,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44" (1/1) ... [2024-10-13 02:36:44,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44" (1/1) ... [2024-10-13 02:36:44,510 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44" (1/1) ... [2024-10-13 02:36:44,527 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 02:36:44,528 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44" (1/1) ... [2024-10-13 02:36:44,528 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44" (1/1) ... [2024-10-13 02:36:44,536 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44" (1/1) ... [2024-10-13 02:36:44,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44" (1/1) ... [2024-10-13 02:36:44,544 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44" (1/1) ... [2024-10-13 02:36:44,546 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44" (1/1) ... [2024-10-13 02:36:44,557 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 02:36:44,557 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 02:36:44,557 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 02:36:44,558 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 02:36:44,558 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44" (1/1) ... [2024-10-13 02:36:44,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 02:36:44,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 02:36:44,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 02:36:44,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 02:36:44,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 02:36:44,615 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 02:36:44,615 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 02:36:44,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 02:36:44,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 02:36:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 02:36:44,679 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 02:36:44,680 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 02:36:45,106 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-10-13 02:36:45,107 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 02:36:45,142 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 02:36:45,143 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 02:36:45,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:36:45 BoogieIcfgContainer [2024-10-13 02:36:45,144 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 02:36:45,145 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 02:36:45,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 02:36:45,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 02:36:45,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 02:36:44" (1/3) ... [2024-10-13 02:36:45,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a549bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:36:45, skipping insertion in model container [2024-10-13 02:36:45,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:36:44" (2/3) ... [2024-10-13 02:36:45,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a549bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:36:45, skipping insertion in model container [2024-10-13 02:36:45,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:36:45" (3/3) ... [2024-10-13 02:36:45,151 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i [2024-10-13 02:36:45,164 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 02:36:45,164 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 02:36:45,218 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 02:36:45,224 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;@5f8a48cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 02:36:45,224 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 02:36:45,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 61 states have (on average 1.540983606557377) internal successors, (94), 62 states have internal predecessors, (94), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 02:36:45,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-13 02:36:45,242 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:36:45,243 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:36:45,243 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:36:45,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:36:45,249 INFO L85 PathProgramCache]: Analyzing trace with hash -743867225, now seen corresponding path program 1 times [2024-10-13 02:36:45,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:36:45,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317007995] [2024-10-13 02:36:45,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:36:45,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:36:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:36:45,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:36:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:36:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:36:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:36:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:36:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:36:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:36:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:36:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:36:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:36:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:36:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:36:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:36:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:36:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:36:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:36:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:36:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:36:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:36:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:36:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:36:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:36:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:36:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:36:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:36:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:36:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:45,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:36:45,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:36:45,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317007995] [2024-10-13 02:36:45,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317007995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:36:45,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:36:45,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 02:36:45,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132820358] [2024-10-13 02:36:45,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:36:45,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 02:36:45,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:36:45,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 02:36:45,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 02:36:45,676 INFO L87 Difference]: Start difference. First operand has 91 states, 61 states have (on average 1.540983606557377) internal successors, (94), 62 states have internal predecessors, (94), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-13 02:36:45,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 02:36:45,715 INFO L93 Difference]: Finished difference Result 179 states and 321 transitions. [2024-10-13 02:36:45,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 02:36:45,718 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 170 [2024-10-13 02:36:45,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 02:36:45,723 INFO L225 Difference]: With dead ends: 179 [2024-10-13 02:36:45,723 INFO L226 Difference]: Without dead ends: 89 [2024-10-13 02:36:45,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 02:36:45,730 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 02:36:45,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 02:36:45,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-10-13 02:36:45,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-10-13 02:36:45,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 60 states have (on average 1.4666666666666666) internal successors, (88), 60 states have internal predecessors, (88), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 02:36:45,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 142 transitions. [2024-10-13 02:36:45,780 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 142 transitions. Word has length 170 [2024-10-13 02:36:45,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 02:36:45,781 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 142 transitions. [2024-10-13 02:36:45,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-13 02:36:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 142 transitions. [2024-10-13 02:36:45,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-13 02:36:45,786 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:36:45,786 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:36:45,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 02:36:45,791 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:36:45,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:36:45,791 INFO L85 PathProgramCache]: Analyzing trace with hash -446301591, now seen corresponding path program 1 times [2024-10-13 02:36:45,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:36:45,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118784000] [2024-10-13 02:36:45,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:36:45,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:36:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:36:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:36:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:36:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:36:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:36:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:36:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:36:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:36:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:36:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:36:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:36:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:36:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:36:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:36:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:36:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:36:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:36:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:36:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:36:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:36:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:36:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:36:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:36:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:36:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:36:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:36:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:36:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:36:46,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:36:46,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118784000] [2024-10-13 02:36:46,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118784000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:36:46,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:36:46,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 02:36:46,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655418195] [2024-10-13 02:36:46,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:36:46,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 02:36:46,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:36:46,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 02:36:46,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 02:36:46,132 INFO L87 Difference]: Start difference. First operand 89 states and 142 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:36:46,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 02:36:46,164 INFO L93 Difference]: Finished difference Result 178 states and 285 transitions. [2024-10-13 02:36:46,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 02:36:46,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-13 02:36:46,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 02:36:46,167 INFO L225 Difference]: With dead ends: 178 [2024-10-13 02:36:46,167 INFO L226 Difference]: Without dead ends: 90 [2024-10-13 02:36:46,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 02:36:46,169 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 02:36:46,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 271 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 02:36:46,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-13 02:36:46,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-13 02:36:46,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.459016393442623) internal successors, (89), 61 states have internal predecessors, (89), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 02:36:46,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 143 transitions. [2024-10-13 02:36:46,179 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 143 transitions. Word has length 170 [2024-10-13 02:36:46,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 02:36:46,182 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 143 transitions. [2024-10-13 02:36:46,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:36:46,182 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 143 transitions. [2024-10-13 02:36:46,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-13 02:36:46,186 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:36:46,186 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:36:46,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 02:36:46,186 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:36:46,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:36:46,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1457418841, now seen corresponding path program 1 times [2024-10-13 02:36:46,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:36:46,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064994109] [2024-10-13 02:36:46,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:36:46,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:36:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:36:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:36:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:36:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:36:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:36:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:36:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:36:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:36:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:36:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:36:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:36:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:36:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:36:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:36:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:36:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:36:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:36:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:36:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:36:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:36:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:36:46,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:36:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:36:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:36:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:36:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:36:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:36:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:36:46,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:36:46,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064994109] [2024-10-13 02:36:46,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064994109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:36:46,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:36:46,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 02:36:46,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255530000] [2024-10-13 02:36:46,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:36:46,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 02:36:46,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:36:46,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 02:36:46,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 02:36:46,481 INFO L87 Difference]: Start difference. First operand 90 states and 143 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:36:46,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 02:36:46,754 INFO L93 Difference]: Finished difference Result 269 states and 428 transitions. [2024-10-13 02:36:46,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 02:36:46,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-13 02:36:46,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 02:36:46,759 INFO L225 Difference]: With dead ends: 269 [2024-10-13 02:36:46,760 INFO L226 Difference]: Without dead ends: 180 [2024-10-13 02:36:46,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-13 02:36:46,764 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 145 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 02:36:46,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 444 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 02:36:46,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-10-13 02:36:46,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 162. [2024-10-13 02:36:46,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 105 states have (on average 1.4190476190476191) internal successors, (149), 105 states have internal predecessors, (149), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-13 02:36:46,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 257 transitions. [2024-10-13 02:36:46,796 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 257 transitions. Word has length 170 [2024-10-13 02:36:46,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 02:36:46,796 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 257 transitions. [2024-10-13 02:36:46,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:36:46,796 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 257 transitions. [2024-10-13 02:36:46,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-13 02:36:46,798 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:36:46,798 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:36:46,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 02:36:46,799 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:36:46,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:36:46,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2019900005, now seen corresponding path program 1 times [2024-10-13 02:36:46,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:36:46,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663643729] [2024-10-13 02:36:46,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:36:46,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:36:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:36:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:36:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:36:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:36:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:46,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:36:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:36:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:36:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:36:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:36:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:36:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:36:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:36:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:36:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:36:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:36:47,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:36:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:36:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:36:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:36:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:36:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:36:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:36:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:36:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:36:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:36:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:36:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:36:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:47,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:36:47,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:36:47,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663643729] [2024-10-13 02:36:47,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663643729] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:36:47,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:36:47,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 02:36:47,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766245932] [2024-10-13 02:36:47,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:36:47,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 02:36:47,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:36:47,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 02:36:47,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 02:36:47,071 INFO L87 Difference]: Start difference. First operand 162 states and 257 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:36:47,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 02:36:47,104 INFO L93 Difference]: Finished difference Result 371 states and 590 transitions. [2024-10-13 02:36:47,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 02:36:47,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-13 02:36:47,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 02:36:47,110 INFO L225 Difference]: With dead ends: 371 [2024-10-13 02:36:47,110 INFO L226 Difference]: Without dead ends: 257 [2024-10-13 02:36:47,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 02:36:47,111 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 97 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 02:36:47,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 310 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 02:36:47,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-10-13 02:36:47,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255. [2024-10-13 02:36:47,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 170 states have (on average 1.4294117647058824) internal successors, (243), 170 states have internal predecessors, (243), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-13 02:36:47,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 405 transitions. [2024-10-13 02:36:47,147 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 405 transitions. Word has length 170 [2024-10-13 02:36:47,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 02:36:47,149 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 405 transitions. [2024-10-13 02:36:47,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:36:47,150 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 405 transitions. [2024-10-13 02:36:47,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-13 02:36:47,153 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:36:47,153 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:36:47,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 02:36:47,153 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:36:47,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:36:47,154 INFO L85 PathProgramCache]: Analyzing trace with hash 330956263, now seen corresponding path program 1 times [2024-10-13 02:36:47,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:36:47,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900936602] [2024-10-13 02:36:47,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:36:47,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:36:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:36:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:36:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:36:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:36:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:36:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:36:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:36:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:36:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:36:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:36:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:36:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:36:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:36:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:36:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:36:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:36:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:36:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:36:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:36:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:36:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:36:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:36:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:36:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:36:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:36:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:36:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:36:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:52,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:36:52,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:36:52,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900936602] [2024-10-13 02:36:52,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900936602] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:36:52,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:36:52,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-13 02:36:52,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243307222] [2024-10-13 02:36:52,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:36:52,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 02:36:52,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:36:52,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 02:36:52,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-10-13 02:36:52,178 INFO L87 Difference]: Start difference. First operand 255 states and 405 transitions. Second operand has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:36:54,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 02:36:54,394 INFO L93 Difference]: Finished difference Result 573 states and 904 transitions. [2024-10-13 02:36:54,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 02:36:54,395 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-13 02:36:54,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 02:36:54,399 INFO L225 Difference]: With dead ends: 573 [2024-10-13 02:36:54,399 INFO L226 Difference]: Without dead ends: 369 [2024-10-13 02:36:54,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650 [2024-10-13 02:36:54,402 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 488 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 02:36:54,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 840 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 02:36:54,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-10-13 02:36:54,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 292. [2024-10-13 02:36:54,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 207 states have (on average 1.4444444444444444) internal successors, (299), 207 states have internal predecessors, (299), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-13 02:36:54,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 461 transitions. [2024-10-13 02:36:54,447 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 461 transitions. Word has length 170 [2024-10-13 02:36:54,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 02:36:54,447 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 461 transitions. [2024-10-13 02:36:54,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:36:54,447 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 461 transitions. [2024-10-13 02:36:54,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-13 02:36:54,449 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:36:54,449 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:36:54,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 02:36:54,449 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:36:54,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:36:54,449 INFO L85 PathProgramCache]: Analyzing trace with hash -255849751, now seen corresponding path program 1 times [2024-10-13 02:36:54,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:36:54,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814443582] [2024-10-13 02:36:54,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:36:54,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:36:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:36:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:36:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:36:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:36:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:36:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:36:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:36:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:36:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:36:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:36:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:36:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:36:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:36:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:36:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:36:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:36:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:36:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:36:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:36:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:36:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:36:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:36:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:36:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:36:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:36:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:36:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:36:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:36:54,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:36:54,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:36:54,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814443582] [2024-10-13 02:36:54,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814443582] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:36:54,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:36:54,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 02:36:54,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029841806] [2024-10-13 02:36:54,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:36:54,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 02:36:54,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:36:54,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 02:36:54,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 02:36:54,561 INFO L87 Difference]: Start difference. First operand 292 states and 461 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:36:54,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 02:36:54,599 INFO L93 Difference]: Finished difference Result 575 states and 913 transitions. [2024-10-13 02:36:54,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 02:36:54,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-10-13 02:36:54,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 02:36:54,602 INFO L225 Difference]: With dead ends: 575 [2024-10-13 02:36:54,602 INFO L226 Difference]: Without dead ends: 390 [2024-10-13 02:36:54,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 02:36:54,603 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 134 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 02:36:54,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 319 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 02:36:54,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-10-13 02:36:54,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 388. [2024-10-13 02:36:54,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 275 states have (on average 1.4290909090909092) internal successors, (393), 275 states have internal predecessors, (393), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-13 02:36:54,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 609 transitions. [2024-10-13 02:36:54,621 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 609 transitions. Word has length 170 [2024-10-13 02:36:54,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 02:36:54,621 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 609 transitions. [2024-10-13 02:36:54,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:36:54,622 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 609 transitions. [2024-10-13 02:36:54,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-13 02:36:54,623 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:36:54,623 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:36:54,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 02:36:54,623 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:36:54,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:36:54,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1711552634, now seen corresponding path program 1 times [2024-10-13 02:36:54,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:36:54,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079375565] [2024-10-13 02:36:54,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:36:54,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:36:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:37:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:37:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:37:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:37:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:37:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:37:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:37:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:37:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:37:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:37:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:37:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:37:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:37:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:37:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:37:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:37:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:37:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:37:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:37:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:37:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:37:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:37:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:37:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:37:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:37:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:37:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:37:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:03,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:37:03,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:37:03,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079375565] [2024-10-13 02:37:03,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079375565] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:37:03,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:37:03,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-13 02:37:03,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208212758] [2024-10-13 02:37:03,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:37:03,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-13 02:37:03,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:37:03,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-13 02:37:03,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-10-13 02:37:03,661 INFO L87 Difference]: Start difference. First operand 388 states and 609 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:37:06,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 02:37:06,860 INFO L93 Difference]: Finished difference Result 449 states and 692 transitions. [2024-10-13 02:37:06,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 02:37:06,861 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-13 02:37:06,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 02:37:06,864 INFO L225 Difference]: With dead ends: 449 [2024-10-13 02:37:06,864 INFO L226 Difference]: Without dead ends: 447 [2024-10-13 02:37:06,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2024-10-13 02:37:06,866 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 612 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 02:37:06,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 796 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 02:37:06,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2024-10-13 02:37:06,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 389. [2024-10-13 02:37:06,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 276 states have (on average 1.4275362318840579) internal successors, (394), 276 states have internal predecessors, (394), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-13 02:37:06,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 610 transitions. [2024-10-13 02:37:06,896 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 610 transitions. Word has length 171 [2024-10-13 02:37:06,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 02:37:06,897 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 610 transitions. [2024-10-13 02:37:06,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:37:06,898 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 610 transitions. [2024-10-13 02:37:06,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-13 02:37:06,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:37:06,900 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:37:06,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 02:37:06,901 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:37:06,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:37:06,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1499395220, now seen corresponding path program 1 times [2024-10-13 02:37:06,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:37:06,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098745537] [2024-10-13 02:37:06,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:37:06,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:37:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:37:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:37:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:37:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:37:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:37:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:37:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:37:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:37:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:37:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:37:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:37:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:37:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:37:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:37:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:37:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:37:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:37:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:37:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:37:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:37:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:37:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:37:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:37:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:37:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:37:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:37:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:37:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:07,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:37:07,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:37:07,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098745537] [2024-10-13 02:37:07,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098745537] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:37:07,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:37:07,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 02:37:07,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73432941] [2024-10-13 02:37:07,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:37:07,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 02:37:07,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:37:07,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 02:37:07,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-13 02:37:07,235 INFO L87 Difference]: Start difference. First operand 389 states and 610 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-13 02:37:07,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 02:37:07,332 INFO L93 Difference]: Finished difference Result 700 states and 1092 transitions. [2024-10-13 02:37:07,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 02:37:07,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 171 [2024-10-13 02:37:07,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 02:37:07,335 INFO L225 Difference]: With dead ends: 700 [2024-10-13 02:37:07,335 INFO L226 Difference]: Without dead ends: 419 [2024-10-13 02:37:07,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-10-13 02:37:07,337 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 147 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 02:37:07,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 378 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 02:37:07,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-10-13 02:37:07,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 401. [2024-10-13 02:37:07,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 285 states have (on average 1.4) internal successors, (399), 285 states have internal predecessors, (399), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-13 02:37:07,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 615 transitions. [2024-10-13 02:37:07,361 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 615 transitions. Word has length 171 [2024-10-13 02:37:07,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 02:37:07,362 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 615 transitions. [2024-10-13 02:37:07,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-13 02:37:07,363 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 615 transitions. [2024-10-13 02:37:07,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-13 02:37:07,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:37:07,365 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:37:07,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 02:37:07,365 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:37:07,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:37:07,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1020564714, now seen corresponding path program 1 times [2024-10-13 02:37:07,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:37:07,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534754679] [2024-10-13 02:37:07,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:37:07,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:37:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:37:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:37:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:37:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:37:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:37:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:37:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:37:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:37:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:37:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:37:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:37:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:37:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:37:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:37:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:37:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:37:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:37:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:37:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:37:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:37:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:37:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:37:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:37:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:37:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:37:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:37:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:37:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:11,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:37:11,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:37:11,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534754679] [2024-10-13 02:37:11,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534754679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:37:11,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:37:11,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-13 02:37:11,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912962572] [2024-10-13 02:37:11,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:37:11,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-13 02:37:11,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:37:11,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-13 02:37:11,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-10-13 02:37:11,627 INFO L87 Difference]: Start difference. First operand 401 states and 615 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:37:14,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 02:37:14,642 INFO L93 Difference]: Finished difference Result 461 states and 695 transitions. [2024-10-13 02:37:14,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 02:37:14,643 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-13 02:37:14,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 02:37:14,646 INFO L225 Difference]: With dead ends: 461 [2024-10-13 02:37:14,646 INFO L226 Difference]: Without dead ends: 459 [2024-10-13 02:37:14,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2024-10-13 02:37:14,647 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 461 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-13 02:37:14,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 931 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-13 02:37:14,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-10-13 02:37:14,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 401. [2024-10-13 02:37:14,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 285 states have (on average 1.4) internal successors, (399), 285 states have internal predecessors, (399), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-13 02:37:14,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 615 transitions. [2024-10-13 02:37:14,677 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 615 transitions. Word has length 171 [2024-10-13 02:37:14,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 02:37:14,677 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 615 transitions. [2024-10-13 02:37:14,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:37:14,678 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 615 transitions. [2024-10-13 02:37:14,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-13 02:37:14,680 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:37:14,680 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:37:14,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 02:37:14,680 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:37:14,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:37:14,681 INFO L85 PathProgramCache]: Analyzing trace with hash -778578052, now seen corresponding path program 1 times [2024-10-13 02:37:14,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:37:14,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553394802] [2024-10-13 02:37:14,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:37:14,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:37:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:37:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:37:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:37:21,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:37:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:37:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:37:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:37:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:37:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:37:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:37:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:37:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:37:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:37:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:37:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:37:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:37:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:37:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:37:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:37:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:37:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:37:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:37:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:37:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:37:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:37:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:37:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:37:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:21,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:37:21,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:37:21,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553394802] [2024-10-13 02:37:21,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553394802] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:37:21,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:37:21,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-13 02:37:21,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247357584] [2024-10-13 02:37:21,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:37:21,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-13 02:37:21,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:37:21,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-13 02:37:21,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-10-13 02:37:21,131 INFO L87 Difference]: Start difference. First operand 401 states and 615 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:37:24,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 02:37:24,672 INFO L93 Difference]: Finished difference Result 491 states and 736 transitions. [2024-10-13 02:37:24,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 02:37:24,673 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-13 02:37:24,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 02:37:24,675 INFO L225 Difference]: With dead ends: 491 [2024-10-13 02:37:24,675 INFO L226 Difference]: Without dead ends: 489 [2024-10-13 02:37:24,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=302, Invalid=754, Unknown=0, NotChecked=0, Total=1056 [2024-10-13 02:37:24,676 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 621 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-13 02:37:24,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 757 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-13 02:37:24,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-10-13 02:37:24,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 419. [2024-10-13 02:37:24,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 303 states have (on average 1.4059405940594059) internal successors, (426), 303 states have internal predecessors, (426), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-13 02:37:24,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 642 transitions. [2024-10-13 02:37:24,698 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 642 transitions. Word has length 171 [2024-10-13 02:37:24,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 02:37:24,699 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 642 transitions. [2024-10-13 02:37:24,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:37:24,699 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 642 transitions. [2024-10-13 02:37:24,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-13 02:37:24,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:37:24,700 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:37:24,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 02:37:24,700 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:37:24,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:37:24,701 INFO L85 PathProgramCache]: Analyzing trace with hash -77513474, now seen corresponding path program 1 times [2024-10-13 02:37:24,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:37:24,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170090624] [2024-10-13 02:37:24,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:37:24,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:37:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:37:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:37:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:37:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:37:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:37:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:37:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:37:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:37:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:37:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:37:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:37:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:37:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:37:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:37:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:37:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:37:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:37:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:37:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:37:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:37:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:37:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:37:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:37:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:37:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:37:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:37:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:37:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:31,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:37:31,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:37:31,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170090624] [2024-10-13 02:37:31,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170090624] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:37:31,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:37:31,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-13 02:37:31,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923817419] [2024-10-13 02:37:31,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:37:31,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-13 02:37:31,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:37:31,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-13 02:37:31,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-10-13 02:37:31,146 INFO L87 Difference]: Start difference. First operand 419 states and 642 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:37:35,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 02:37:35,787 INFO L93 Difference]: Finished difference Result 485 states and 730 transitions. [2024-10-13 02:37:35,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-13 02:37:35,788 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-13 02:37:35,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 02:37:35,790 INFO L225 Difference]: With dead ends: 485 [2024-10-13 02:37:35,791 INFO L226 Difference]: Without dead ends: 483 [2024-10-13 02:37:35,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=302, Invalid=690, Unknown=0, NotChecked=0, Total=992 [2024-10-13 02:37:35,792 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 624 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-13 02:37:35,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 737 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-13 02:37:35,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-10-13 02:37:35,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 419. [2024-10-13 02:37:35,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 303 states have (on average 1.4059405940594059) internal successors, (426), 303 states have internal predecessors, (426), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-13 02:37:35,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 642 transitions. [2024-10-13 02:37:35,814 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 642 transitions. Word has length 171 [2024-10-13 02:37:35,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 02:37:35,814 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 642 transitions. [2024-10-13 02:37:35,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:37:35,814 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 642 transitions. [2024-10-13 02:37:35,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-13 02:37:35,815 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:37:35,815 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:37:35,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 02:37:35,816 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:37:35,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:37:35,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1530891989, now seen corresponding path program 1 times [2024-10-13 02:37:35,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:37:35,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955959195] [2024-10-13 02:37:35,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:37:35,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:37:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:37:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:37:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:37:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:37:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:37:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:37:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:37:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:37:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:37:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:37:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:37:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:37:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:37:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:37:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:37:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:37:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:37:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:37:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:37:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:37:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:37:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:37:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:37:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:37:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:37:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:37:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:37:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:37:40,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:37:40,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955959195] [2024-10-13 02:37:40,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955959195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:37:40,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:37:40,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-13 02:37:40,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79520142] [2024-10-13 02:37:40,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:37:40,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-13 02:37:40,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:37:40,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-13 02:37:40,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-10-13 02:37:40,738 INFO L87 Difference]: Start difference. First operand 419 states and 642 transitions. Second operand has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-13 02:37:43,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 02:37:43,697 INFO L93 Difference]: Finished difference Result 465 states and 702 transitions. [2024-10-13 02:37:43,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-13 02:37:43,697 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 172 [2024-10-13 02:37:43,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 02:37:43,700 INFO L225 Difference]: With dead ends: 465 [2024-10-13 02:37:43,700 INFO L226 Difference]: Without dead ends: 463 [2024-10-13 02:37:43,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=234, Invalid=696, Unknown=0, NotChecked=0, Total=930 [2024-10-13 02:37:43,701 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 478 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-13 02:37:43,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 1030 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-13 02:37:43,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-10-13 02:37:43,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 416. [2024-10-13 02:37:43,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 300 states have (on average 1.4066666666666667) internal successors, (422), 300 states have internal predecessors, (422), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-13 02:37:43,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 638 transitions. [2024-10-13 02:37:43,718 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 638 transitions. Word has length 172 [2024-10-13 02:37:43,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 02:37:43,719 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 638 transitions. [2024-10-13 02:37:43,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-13 02:37:43,719 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 638 transitions. [2024-10-13 02:37:43,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-13 02:37:43,720 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:37:43,720 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:37:43,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 02:37:43,720 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:37:43,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:37:43,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1677574279, now seen corresponding path program 1 times [2024-10-13 02:37:43,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:37:43,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216886052] [2024-10-13 02:37:43,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:37:43,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:37:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:37:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:37:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:37:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:37:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:37:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:37:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:37:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:37:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:37:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:37:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:37:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:37:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:37:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:37:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:37:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:37:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:37:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:37:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:37:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:37:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:37:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:37:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:37:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:37:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:37:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:37:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:37:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:37:49,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:37:49,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216886052] [2024-10-13 02:37:49,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216886052] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:37:49,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:37:49,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-13 02:37:49,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680311354] [2024-10-13 02:37:49,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:37:49,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-13 02:37:49,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:37:49,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-13 02:37:49,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-13 02:37:49,329 INFO L87 Difference]: Start difference. First operand 416 states and 638 transitions. Second operand has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:37:54,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 02:37:54,764 INFO L93 Difference]: Finished difference Result 486 states and 731 transitions. [2024-10-13 02:37:54,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-13 02:37:54,765 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 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 172 [2024-10-13 02:37:54,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 02:37:54,768 INFO L225 Difference]: With dead ends: 486 [2024-10-13 02:37:54,768 INFO L226 Difference]: Without dead ends: 484 [2024-10-13 02:37:54,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=336, Invalid=854, Unknown=0, NotChecked=0, Total=1190 [2024-10-13 02:37:54,769 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 497 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-13 02:37:54,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 902 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-13 02:37:54,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-10-13 02:37:54,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 428. [2024-10-13 02:37:54,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 312 states have (on average 1.4102564102564104) internal successors, (440), 312 states have internal predecessors, (440), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-13 02:37:54,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 656 transitions. [2024-10-13 02:37:54,805 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 656 transitions. Word has length 172 [2024-10-13 02:37:54,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 02:37:54,806 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 656 transitions. [2024-10-13 02:37:54,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-13 02:37:54,806 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 656 transitions. [2024-10-13 02:37:54,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-13 02:37:54,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:37:54,808 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:37:54,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 02:37:54,808 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:37:54,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:37:54,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1056390111, now seen corresponding path program 1 times [2024-10-13 02:37:54,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:37:54,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015215097] [2024-10-13 02:37:54,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:37:54,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:37:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:37:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:37:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:37:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:37:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:37:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:37:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:37:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:37:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:37:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:37:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:37:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:37:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:37:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:37:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:37:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:37:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:37:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:37:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:37:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:37:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:37:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:37:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:37:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:37:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:37:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:37:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:37:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:37:57,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:37:57,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:37:57,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015215097] [2024-10-13 02:37:57,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015215097] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:37:57,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:37:57,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-13 02:37:57,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938810083] [2024-10-13 02:37:57,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:37:57,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-13 02:37:57,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:37:57,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-13 02:37:57,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-10-13 02:37:57,715 INFO L87 Difference]: Start difference. First operand 428 states and 656 transitions. Second operand has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-13 02:38:02,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 02:38:02,005 INFO L93 Difference]: Finished difference Result 492 states and 739 transitions. [2024-10-13 02:38:02,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-13 02:38:02,007 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 172 [2024-10-13 02:38:02,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 02:38:02,010 INFO L225 Difference]: With dead ends: 492 [2024-10-13 02:38:02,012 INFO L226 Difference]: Without dead ends: 490 [2024-10-13 02:38:02,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=396, Invalid=1010, Unknown=0, NotChecked=0, Total=1406 [2024-10-13 02:38:02,014 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 627 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-13 02:38:02,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 1088 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-13 02:38:02,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-10-13 02:38:02,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 429. [2024-10-13 02:38:02,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 313 states have (on average 1.4089456869009584) internal successors, (441), 313 states have internal predecessors, (441), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-13 02:38:02,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 657 transitions. [2024-10-13 02:38:02,035 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 657 transitions. Word has length 172 [2024-10-13 02:38:02,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 02:38:02,035 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 657 transitions. [2024-10-13 02:38:02,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-13 02:38:02,036 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 657 transitions. [2024-10-13 02:38:02,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-13 02:38:02,037 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 02:38:02,037 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 02:38:02,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 02:38:02,037 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 02:38:02,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 02:38:02,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1935739717, now seen corresponding path program 1 times [2024-10-13 02:38:02,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 02:38:02,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339558186] [2024-10-13 02:38:02,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 02:38:02,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 02:38:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 02:38:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 02:38:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 02:38:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 02:38:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 02:38:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 02:38:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 02:38:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 02:38:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 02:38:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 02:38:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 02:38:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 02:38:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 02:38:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 02:38:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 02:38:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 02:38:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 02:38:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 02:38:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 02:38:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 02:38:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 02:38:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 02:38:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 02:38:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 02:38:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 02:38:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 02:38:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 02:38:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 02:38:10,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-13 02:38:10,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 02:38:10,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339558186] [2024-10-13 02:38:10,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339558186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 02:38:10,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 02:38:10,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-13 02:38:10,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399430139] [2024-10-13 02:38:10,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 02:38:10,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-13 02:38:10,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 02:38:10,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-13 02:38:10,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-13 02:38:10,691 INFO L87 Difference]: Start difference. First operand 429 states and 657 transitions. Second operand has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 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)