./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_fillercodesize_ps-cn-10_file-56.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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_fillercodesize_ps-cn-10_file-56.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 4623efc2673ee52abd070f0d21e51a11b98cc22b8397a5181b7ee0443b3e1285 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 06:06:34,305 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 06:06:34,397 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 06:06:34,401 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 06:06:34,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 06:06:34,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 06:06:34,440 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 06:06:34,440 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 06:06:34,440 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 06:06:34,441 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 06:06:34,441 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 06:06:34,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 06:06:34,443 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 06:06:34,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 06:06:34,445 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 06:06:34,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 06:06:34,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 06:06:34,446 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 06:06:34,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 06:06:34,447 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 06:06:34,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 06:06:34,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 06:06:34,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 06:06:34,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 06:06:34,450 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 06:06:34,450 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 06:06:34,450 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 06:06:34,451 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 06:06:34,451 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 06:06:34,452 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 06:06:34,452 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 06:06:34,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 06:06:34,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 06:06:34,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 06:06:34,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 06:06:34,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 06:06:34,454 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 06:06:34,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 06:06:34,455 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 06:06:34,455 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 06:06:34,456 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 06:06:34,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 06:06:34,459 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4623efc2673ee52abd070f0d21e51a11b98cc22b8397a5181b7ee0443b3e1285 [2024-10-24 06:06:34,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 06:06:34,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 06:06:34,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 06:06:34,778 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 06:06:34,778 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 06:06:34,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-56.i [2024-10-24 06:06:36,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 06:06:36,691 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 06:06:36,692 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-56.i [2024-10-24 06:06:36,703 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deda3f738/2b36a8531c524179b5c96a11f5bbf0e7/FLAG9fc0c6b78 [2024-10-24 06:06:37,021 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deda3f738/2b36a8531c524179b5c96a11f5bbf0e7 [2024-10-24 06:06:37,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 06:06:37,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 06:06:37,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 06:06:37,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 06:06:37,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 06:06:37,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:06:37" (1/1) ... [2024-10-24 06:06:37,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a9e0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37, skipping insertion in model container [2024-10-24 06:06:37,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:06:37" (1/1) ... [2024-10-24 06:06:37,072 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 06:06:37,274 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_fillercodesize_ps-cn-10_file-56.i[915,928] [2024-10-24 06:06:37,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 06:06:37,363 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 06:06:37,373 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_fillercodesize_ps-cn-10_file-56.i[915,928] [2024-10-24 06:06:37,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 06:06:37,436 INFO L204 MainTranslator]: Completed translation [2024-10-24 06:06:37,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37 WrapperNode [2024-10-24 06:06:37,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 06:06:37,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 06:06:37,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 06:06:37,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 06:06:37,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37" (1/1) ... [2024-10-24 06:06:37,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37" (1/1) ... [2024-10-24 06:06:37,528 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 198 [2024-10-24 06:06:37,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 06:06:37,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 06:06:37,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 06:06:37,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 06:06:37,542 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37" (1/1) ... [2024-10-24 06:06:37,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37" (1/1) ... [2024-10-24 06:06:37,549 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37" (1/1) ... [2024-10-24 06:06:37,577 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]. [2024-10-24 06:06:37,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37" (1/1) ... [2024-10-24 06:06:37,579 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37" (1/1) ... [2024-10-24 06:06:37,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37" (1/1) ... [2024-10-24 06:06:37,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37" (1/1) ... [2024-10-24 06:06:37,612 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37" (1/1) ... [2024-10-24 06:06:37,620 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37" (1/1) ... [2024-10-24 06:06:37,636 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 06:06:37,638 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 06:06:37,638 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 06:06:37,638 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 06:06:37,639 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37" (1/1) ... [2024-10-24 06:06:37,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 06:06:37,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 06:06:37,679 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) [2024-10-24 06:06:37,683 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 [2024-10-24 06:06:37,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 06:06:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 06:06:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 06:06:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 06:06:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 06:06:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 06:06:37,926 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 06:06:37,933 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 06:06:38,370 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-24 06:06:38,371 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 06:06:38,422 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 06:06:38,422 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 06:06:38,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:06:38 BoogieIcfgContainer [2024-10-24 06:06:38,423 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 06:06:38,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 06:06:38,426 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 06:06:38,429 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 06:06:38,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:06:37" (1/3) ... [2024-10-24 06:06:38,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7ee43d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:06:38, skipping insertion in model container [2024-10-24 06:06:38,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:06:37" (2/3) ... [2024-10-24 06:06:38,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7ee43d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:06:38, skipping insertion in model container [2024-10-24 06:06:38,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:06:38" (3/3) ... [2024-10-24 06:06:38,434 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-56.i [2024-10-24 06:06:38,454 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 06:06:38,454 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 06:06:38,537 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 06:06:38,546 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;@5ca7f8ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 06:06:38,550 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 06:06:38,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 45 states have (on average 1.3777777777777778) internal successors, (62), 46 states have internal predecessors, (62), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 06:06:38,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-10-24 06:06:38,578 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 06:06:38,581 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 06:06:38,582 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 06:06:38,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 06:06:38,589 INFO L85 PathProgramCache]: Analyzing trace with hash -990600732, now seen corresponding path program 1 times [2024-10-24 06:06:38,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 06:06:38,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263588137] [2024-10-24 06:06:38,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:06:38,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 06:06:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:38,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 06:06:38,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:38,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 06:06:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:38,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 06:06:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:38,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 06:06:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 06:06:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 06:06:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 06:06:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 06:06:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 06:06:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 06:06:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 06:06:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 06:06:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 06:06:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 06:06:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 06:06:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 06:06:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 06:06:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 06:06:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 06:06:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 06:06:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 06:06:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 06:06:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 06:06:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 06:06:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 06:06:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 06:06:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 06:06:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 06:06:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 06:06:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-24 06:06:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 06:06:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-24 06:06:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-24 06:06:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-24 06:06:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-24 06:06:39,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 06:06:39,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263588137] [2024-10-24 06:06:39,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263588137] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 06:06:39,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 06:06:39,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 06:06:39,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508324709] [2024-10-24 06:06:39,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 06:06:39,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 06:06:39,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 06:06:39,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 06:06:39,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 06:06:39,259 INFO L87 Difference]: Start difference. First operand has 82 states, 45 states have (on average 1.3777777777777778) internal successors, (62), 46 states have internal predecessors, (62), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-24 06:06:39,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 06:06:39,305 INFO L93 Difference]: Finished difference Result 161 states and 292 transitions. [2024-10-24 06:06:39,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 06:06:39,309 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 206 [2024-10-24 06:06:39,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 06:06:39,318 INFO L225 Difference]: With dead ends: 161 [2024-10-24 06:06:39,319 INFO L226 Difference]: Without dead ends: 80 [2024-10-24 06:06:39,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 06:06:39,327 INFO L432 NwaCegarLoop]: 122 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, 122 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 [2024-10-24 06:06:39,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 06:06:39,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-24 06:06:39,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-10-24 06:06:39,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 44 states have internal predecessors, (57), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 06:06:39,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 125 transitions. [2024-10-24 06:06:39,430 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 125 transitions. Word has length 206 [2024-10-24 06:06:39,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 06:06:39,431 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 125 transitions. [2024-10-24 06:06:39,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-24 06:06:39,432 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 125 transitions. [2024-10-24 06:06:39,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-10-24 06:06:39,441 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 06:06:39,441 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 06:06:39,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 06:06:39,441 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 06:06:39,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 06:06:39,445 INFO L85 PathProgramCache]: Analyzing trace with hash -621579484, now seen corresponding path program 1 times [2024-10-24 06:06:39,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 06:06:39,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018874611] [2024-10-24 06:06:39,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:06:39,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 06:06:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 06:06:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 06:06:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 06:06:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 06:06:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 06:06:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 06:06:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 06:06:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 06:06:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 06:06:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 06:06:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 06:06:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 06:06:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 06:06:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 06:06:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 06:06:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 06:06:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 06:06:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 06:06:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 06:06:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 06:06:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 06:06:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 06:06:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 06:06:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 06:06:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 06:06:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 06:06:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 06:06:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 06:06:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 06:06:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-24 06:06:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 06:06:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-24 06:06:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-24 06:06:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-24 06:06:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-24 06:06:39,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 06:06:39,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018874611] [2024-10-24 06:06:39,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018874611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 06:06:39,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 06:06:39,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 06:06:39,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608952432] [2024-10-24 06:06:39,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 06:06:39,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 06:06:39,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 06:06:39,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 06:06:39,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 06:06:39,946 INFO L87 Difference]: Start difference. First operand 80 states and 125 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-24 06:06:40,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 06:06:40,022 INFO L93 Difference]: Finished difference Result 224 states and 349 transitions. [2024-10-24 06:06:40,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 06:06:40,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 206 [2024-10-24 06:06:40,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 06:06:40,032 INFO L225 Difference]: With dead ends: 224 [2024-10-24 06:06:40,033 INFO L226 Difference]: Without dead ends: 145 [2024-10-24 06:06:40,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 06:06:40,039 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 97 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 06:06:40,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 235 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 06:06:40,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-10-24 06:06:40,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 142. [2024-10-24 06:06:40,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 77 states have (on average 1.2727272727272727) internal successors, (98), 78 states have internal predecessors, (98), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-24 06:06:40,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 222 transitions. [2024-10-24 06:06:40,073 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 222 transitions. Word has length 206 [2024-10-24 06:06:40,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 06:06:40,074 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 222 transitions. [2024-10-24 06:06:40,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-24 06:06:40,075 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 222 transitions. [2024-10-24 06:06:40,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-10-24 06:06:40,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 06:06:40,078 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 06:06:40,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 06:06:40,079 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 06:06:40,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 06:06:40,080 INFO L85 PathProgramCache]: Analyzing trace with hash 389537766, now seen corresponding path program 1 times [2024-10-24 06:06:40,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 06:06:40,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278656723] [2024-10-24 06:06:40,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:06:40,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 06:06:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 06:06:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 06:06:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 06:06:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 06:06:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 06:06:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 06:06:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 06:06:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 06:06:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 06:06:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 06:06:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 06:06:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 06:06:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 06:06:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 06:06:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 06:06:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 06:06:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 06:06:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 06:06:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 06:06:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 06:06:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 06:06:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 06:06:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 06:06:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 06:06:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 06:06:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 06:06:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 06:06:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 06:06:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 06:06:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-24 06:06:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 06:06:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-24 06:06:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-24 06:06:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-24 06:06:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 06:06:41,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-24 06:06:41,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 06:06:41,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278656723] [2024-10-24 06:06:41,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278656723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 06:06:41,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 06:06:41,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 06:06:41,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662786389] [2024-10-24 06:06:41,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 06:06:41,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 06:06:41,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 06:06:41,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 06:06:41,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 06:06:41,311 INFO L87 Difference]: Start difference. First operand 142 states and 222 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-24 06:06:41,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 06:06:41,464 INFO L93 Difference]: Finished difference Result 355 states and 545 transitions. [2024-10-24 06:06:41,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 06:06:41,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 206 [2024-10-24 06:06:41,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 06:06:41,474 INFO L225 Difference]: With dead ends: 355 [2024-10-24 06:06:41,474 INFO L226 Difference]: Without dead ends: 214 [2024-10-24 06:06:41,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 06:06:41,480 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 64 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 06:06:41,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 377 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 06:06:41,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-10-24 06:06:41,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 192. [2024-10-24 06:06:41,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 120 states have internal predecessors, (154), 70 states have call successors, (70), 4 states have call predecessors, (70), 4 states have return successors, (70), 67 states have call predecessors, (70), 70 states have call successors, (70) [2024-10-24 06:06:41,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 294 transitions. [2024-10-24 06:06:41,524 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 294 transitions. Word has length 206 [2024-10-24 06:06:41,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 06:06:41,525 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 294 transitions. [2024-10-24 06:06:41,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-24 06:06:41,527 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 294 transitions. [2024-10-24 06:06:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-10-24 06:06:41,530 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 06:06:41,530 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 06:06:41,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 06:06:41,531 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 06:06:41,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 06:06:41,535 INFO L85 PathProgramCache]: Analyzing trace with hash -2130422168, now seen corresponding path program 1 times [2024-10-24 06:06:41,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 06:06:41,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397422662] [2024-10-24 06:06:41,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 06:06:41,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 06:06:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat