./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-25.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-25.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 8a0aa5268274913f166e3439344c11e1f55f1cae222bb90cd734b4386dad3afb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:30:09,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:30:09,300 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:30:09,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:30:09,304 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:30:09,327 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:30:09,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:30:09,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:30:09,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:30:09,330 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:30:09,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:30:09,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:30:09,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:30:09,331 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:30:09,332 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:30:09,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:30:09,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:30:09,332 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:30:09,333 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:30:09,333 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:30:09,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:30:09,334 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:30:09,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:30:09,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:30:09,334 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:30:09,334 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:30:09,335 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:30:09,335 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:30:09,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:30:09,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:30:09,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:30:09,336 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:30:09,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:30:09,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:30:09,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:30:09,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:30:09,336 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:30:09,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:30:09,337 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:30:09,337 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:30:09,337 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:30:09,338 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:30:09,338 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a0aa5268274913f166e3439344c11e1f55f1cae222bb90cd734b4386dad3afb [2024-11-18 19:30:09,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:30:09,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:30:09,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:30:09,598 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:30:09,598 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:30:09,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-25.i [2024-11-18 19:30:10,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:30:11,058 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:30:11,059 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-25.i [2024-11-18 19:30:11,068 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6a35dda7/f4b7ab994e784864a0220846b54441ac/FLAG6d4bdfdb2 [2024-11-18 19:30:11,444 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6a35dda7/f4b7ab994e784864a0220846b54441ac [2024-11-18 19:30:11,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:30:11,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:30:11,448 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:30:11,448 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:30:11,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:30:11,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:30:11" (1/1) ... [2024-11-18 19:30:11,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74083af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11, skipping insertion in model container [2024-11-18 19:30:11,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:30:11" (1/1) ... [2024-11-18 19:30:11,483 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:30:11,629 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-25.i[916,929] [2024-11-18 19:30:11,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:30:11,798 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:30:11,807 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-25.i[916,929] [2024-11-18 19:30:11,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:30:11,872 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:30:11,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11 WrapperNode [2024-11-18 19:30:11,872 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:30:11,873 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:30:11,873 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:30:11,873 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:30:11,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11" (1/1) ... [2024-11-18 19:30:11,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11" (1/1) ... [2024-11-18 19:30:11,931 INFO L138 Inliner]: procedures = 26, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 574 [2024-11-18 19:30:11,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:30:11,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:30:11,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:30:11,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:30:11,942 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11" (1/1) ... [2024-11-18 19:30:11,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11" (1/1) ... [2024-11-18 19:30:11,953 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11" (1/1) ... [2024-11-18 19:30:11,984 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 19:30:11,985 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11" (1/1) ... [2024-11-18 19:30:11,985 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11" (1/1) ... [2024-11-18 19:30:12,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11" (1/1) ... [2024-11-18 19:30:12,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11" (1/1) ... [2024-11-18 19:30:12,013 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11" (1/1) ... [2024-11-18 19:30:12,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11" (1/1) ... [2024-11-18 19:30:12,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:30:12,035 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:30:12,035 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:30:12,035 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:30:12,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11" (1/1) ... [2024-11-18 19:30:12,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:30:12,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:30:12,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 19:30:12,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 19:30:12,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:30:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:30:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:30:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:30:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:30:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:30:12,247 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:30:12,251 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:30:12,863 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-18 19:30:12,864 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:30:12,886 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:30:12,888 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:30:12,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:30:12 BoogieIcfgContainer [2024-11-18 19:30:12,889 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:30:12,890 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:30:12,890 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:30:12,899 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:30:12,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:30:11" (1/3) ... [2024-11-18 19:30:12,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4832a3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:30:12, skipping insertion in model container [2024-11-18 19:30:12,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:30:11" (2/3) ... [2024-11-18 19:30:12,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4832a3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:30:12, skipping insertion in model container [2024-11-18 19:30:12,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:30:12" (3/3) ... [2024-11-18 19:30:12,905 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-25.i [2024-11-18 19:30:12,921 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:30:12,921 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:30:12,989 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:30:12,995 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;@46357ed2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:30:12,995 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:30:13,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 234 states, 160 states have (on average 1.55625) internal successors, (249), 161 states have internal predecessors, (249), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-18 19:30:13,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-18 19:30:13,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:13,067 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:30:13,068 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:13,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:13,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1208476278, now seen corresponding path program 1 times [2024-11-18 19:30:13,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:13,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838639661] [2024-11-18 19:30:13,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:13,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:13,703 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-18 19:30:13,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:13,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838639661] [2024-11-18 19:30:13,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838639661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:13,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:13,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 19:30:13,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366746399] [2024-11-18 19:30:13,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:13,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:30:13,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:13,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:30:13,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:30:13,740 INFO L87 Difference]: Start difference. First operand has 234 states, 160 states have (on average 1.55625) internal successors, (249), 161 states have internal predecessors, (249), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:13,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:13,800 INFO L93 Difference]: Finished difference Result 461 states and 847 transitions. [2024-11-18 19:30:13,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:30:13,802 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 458 [2024-11-18 19:30:13,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:13,814 INFO L225 Difference]: With dead ends: 461 [2024-11-18 19:30:13,814 INFO L226 Difference]: Without dead ends: 230 [2024-11-18 19:30:13,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:30:13,823 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:13,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:30:13,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-18 19:30:13,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2024-11-18 19:30:13,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 157 states have (on average 1.5286624203821657) internal successors, (240), 157 states have internal predecessors, (240), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-18 19:30:13,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 382 transitions. [2024-11-18 19:30:13,892 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 382 transitions. Word has length 458 [2024-11-18 19:30:13,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:13,897 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 382 transitions. [2024-11-18 19:30:13,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:13,897 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 382 transitions. [2024-11-18 19:30:13,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-18 19:30:13,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:13,905 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:30:13,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 19:30:13,906 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:13,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:13,926 INFO L85 PathProgramCache]: Analyzing trace with hash -876683920, now seen corresponding path program 1 times [2024-11-18 19:30:13,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:13,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262062781] [2024-11-18 19:30:13,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:13,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:14,205 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-18 19:30:14,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:14,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262062781] [2024-11-18 19:30:14,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262062781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:14,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:14,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:30:14,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683715203] [2024-11-18 19:30:14,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:14,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:30:14,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:14,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:30:14,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:30:14,214 INFO L87 Difference]: Start difference. First operand 230 states and 382 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:14,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:14,293 INFO L93 Difference]: Finished difference Result 592 states and 988 transitions. [2024-11-18 19:30:14,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:30:14,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 459 [2024-11-18 19:30:14,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:14,300 INFO L225 Difference]: With dead ends: 592 [2024-11-18 19:30:14,300 INFO L226 Difference]: Without dead ends: 365 [2024-11-18 19:30:14,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:30:14,302 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 222 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:14,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 807 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:30:14,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-18 19:30:14,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 362. [2024-11-18 19:30:14,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 276 states have (on average 1.5833333333333333) internal successors, (437), 277 states have internal predecessors, (437), 83 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (83), 82 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 19:30:14,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 603 transitions. [2024-11-18 19:30:14,346 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 603 transitions. Word has length 459 [2024-11-18 19:30:14,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:14,347 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 603 transitions. [2024-11-18 19:30:14,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:14,350 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 603 transitions. [2024-11-18 19:30:14,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-18 19:30:14,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:14,371 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:30:14,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:30:14,373 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:14,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:14,374 INFO L85 PathProgramCache]: Analyzing trace with hash -315984142, now seen corresponding path program 1 times [2024-11-18 19:30:14,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:14,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535966612] [2024-11-18 19:30:14,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:14,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:14,734 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-18 19:30:14,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:14,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535966612] [2024-11-18 19:30:14,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535966612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:14,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:14,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:30:14,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262341881] [2024-11-18 19:30:14,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:14,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:30:14,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:14,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:30:14,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:30:14,741 INFO L87 Difference]: Start difference. First operand 362 states and 603 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:14,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:14,804 INFO L93 Difference]: Finished difference Result 1080 states and 1803 transitions. [2024-11-18 19:30:14,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:30:14,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 459 [2024-11-18 19:30:14,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:14,814 INFO L225 Difference]: With dead ends: 1080 [2024-11-18 19:30:14,816 INFO L226 Difference]: Without dead ends: 721 [2024-11-18 19:30:14,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:30:14,820 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 248 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:14,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 739 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:30:14,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-18 19:30:14,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 715. [2024-11-18 19:30:14,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 544 states have (on average 1.5808823529411764) internal successors, (860), 546 states have internal predecessors, (860), 166 states have call successors, (166), 4 states have call predecessors, (166), 4 states have return successors, (166), 164 states have call predecessors, (166), 166 states have call successors, (166) [2024-11-18 19:30:14,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1192 transitions. [2024-11-18 19:30:14,903 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1192 transitions. Word has length 459 [2024-11-18 19:30:14,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:14,905 INFO L471 AbstractCegarLoop]: Abstraction has 715 states and 1192 transitions. [2024-11-18 19:30:14,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:14,906 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1192 transitions. [2024-11-18 19:30:14,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-18 19:30:14,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:14,913 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:30:14,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:30:14,914 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:14,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:14,916 INFO L85 PathProgramCache]: Analyzing trace with hash 577502196, now seen corresponding path program 1 times [2024-11-18 19:30:14,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:14,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688737045] [2024-11-18 19:30:14,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:14,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:15,147 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-18 19:30:15,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:15,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688737045] [2024-11-18 19:30:15,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688737045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:15,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:15,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:30:15,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157825341] [2024-11-18 19:30:15,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:15,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:30:15,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:15,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:30:15,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:30:15,150 INFO L87 Difference]: Start difference. First operand 715 states and 1192 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:15,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:15,203 INFO L93 Difference]: Finished difference Result 1439 states and 2390 transitions. [2024-11-18 19:30:15,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:30:15,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 459 [2024-11-18 19:30:15,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:15,209 INFO L225 Difference]: With dead ends: 1439 [2024-11-18 19:30:15,209 INFO L226 Difference]: Without dead ends: 727 [2024-11-18 19:30:15,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:30:15,213 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 205 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:15,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 794 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:30:15,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-18 19:30:15,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 543. [2024-11-18 19:30:15,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 396 states have (on average 1.5606060606060606) internal successors, (618), 396 states have internal predecessors, (618), 142 states have call successors, (142), 4 states have call predecessors, (142), 4 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2024-11-18 19:30:15,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 902 transitions. [2024-11-18 19:30:15,259 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 902 transitions. Word has length 459 [2024-11-18 19:30:15,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:15,261 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 902 transitions. [2024-11-18 19:30:15,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:15,261 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 902 transitions. [2024-11-18 19:30:15,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-18 19:30:15,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:15,266 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:30:15,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:30:15,267 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:15,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:15,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1267864970, now seen corresponding path program 1 times [2024-11-18 19:30:15,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:15,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349488167] [2024-11-18 19:30:15,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:15,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:15,641 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-18 19:30:15,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:15,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349488167] [2024-11-18 19:30:15,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349488167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:15,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:15,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:30:15,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036853319] [2024-11-18 19:30:15,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:15,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:30:15,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:15,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:30:15,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:30:15,647 INFO L87 Difference]: Start difference. First operand 543 states and 902 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:15,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:15,915 INFO L93 Difference]: Finished difference Result 1090 states and 1812 transitions. [2024-11-18 19:30:15,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:30:15,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 459 [2024-11-18 19:30:15,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:15,920 INFO L225 Difference]: With dead ends: 1090 [2024-11-18 19:30:15,920 INFO L226 Difference]: Without dead ends: 550 [2024-11-18 19:30:15,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:30:15,923 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 237 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:15,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 958 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:30:15,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-18 19:30:15,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 544. [2024-11-18 19:30:15,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 397 states have (on average 1.5591939546599496) internal successors, (619), 397 states have internal predecessors, (619), 142 states have call successors, (142), 4 states have call predecessors, (142), 4 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2024-11-18 19:30:15,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 903 transitions. [2024-11-18 19:30:15,962 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 903 transitions. Word has length 459 [2024-11-18 19:30:15,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:15,963 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 903 transitions. [2024-11-18 19:30:15,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:15,963 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 903 transitions. [2024-11-18 19:30:15,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-18 19:30:15,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:15,968 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:30:15,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:30:15,968 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:15,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:15,969 INFO L85 PathProgramCache]: Analyzing trace with hash 2090562457, now seen corresponding path program 1 times [2024-11-18 19:30:15,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:15,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869282557] [2024-11-18 19:30:15,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:15,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:16,196 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-18 19:30:16,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:16,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869282557] [2024-11-18 19:30:16,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869282557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:16,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:16,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:30:16,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753103406] [2024-11-18 19:30:16,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:16,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:30:16,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:16,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:30:16,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:30:16,200 INFO L87 Difference]: Start difference. First operand 544 states and 903 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:16,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:16,316 INFO L93 Difference]: Finished difference Result 1641 states and 2689 transitions. [2024-11-18 19:30:16,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:30:16,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 460 [2024-11-18 19:30:16,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:16,322 INFO L225 Difference]: With dead ends: 1641 [2024-11-18 19:30:16,323 INFO L226 Difference]: Without dead ends: 1100 [2024-11-18 19:30:16,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:30:16,325 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 589 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:16,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 1380 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:30:16,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2024-11-18 19:30:16,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 815. [2024-11-18 19:30:16,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 626 states have (on average 1.5702875399361023) internal successors, (983), 628 states have internal predecessors, (983), 180 states have call successors, (180), 8 states have call predecessors, (180), 8 states have return successors, (180), 178 states have call predecessors, (180), 180 states have call successors, (180) [2024-11-18 19:30:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1343 transitions. [2024-11-18 19:30:16,375 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1343 transitions. Word has length 460 [2024-11-18 19:30:16,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:16,375 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 1343 transitions. [2024-11-18 19:30:16,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:16,376 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1343 transitions. [2024-11-18 19:30:16,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-18 19:30:16,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:16,380 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:30:16,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:30:16,381 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:16,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:16,381 INFO L85 PathProgramCache]: Analyzing trace with hash -943487589, now seen corresponding path program 1 times [2024-11-18 19:30:16,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:16,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947226117] [2024-11-18 19:30:16,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:16,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:16,773 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-18 19:30:16,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:16,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947226117] [2024-11-18 19:30:16,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947226117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:16,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:16,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:30:16,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178126958] [2024-11-18 19:30:16,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:16,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:30:16,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:16,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:30:16,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:30:16,776 INFO L87 Difference]: Start difference. First operand 815 states and 1343 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:17,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:17,549 INFO L93 Difference]: Finished difference Result 2459 states and 4057 transitions. [2024-11-18 19:30:17,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 19:30:17,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 460 [2024-11-18 19:30:17,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:17,559 INFO L225 Difference]: With dead ends: 2459 [2024-11-18 19:30:17,560 INFO L226 Difference]: Without dead ends: 1647 [2024-11-18 19:30:17,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-18 19:30:17,564 INFO L432 NwaCegarLoop]: 775 mSDtfsCounter, 849 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 2364 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:17,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 2364 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 19:30:17,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2024-11-18 19:30:17,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1627. [2024-11-18 19:30:17,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1250 states have (on average 1.5696) internal successors, (1962), 1254 states have internal predecessors, (1962), 360 states have call successors, (360), 16 states have call predecessors, (360), 16 states have return successors, (360), 356 states have call predecessors, (360), 360 states have call successors, (360) [2024-11-18 19:30:17,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2682 transitions. [2024-11-18 19:30:17,682 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2682 transitions. Word has length 460 [2024-11-18 19:30:17,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:17,683 INFO L471 AbstractCegarLoop]: Abstraction has 1627 states and 2682 transitions. [2024-11-18 19:30:17,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:17,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2682 transitions. [2024-11-18 19:30:17,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-18 19:30:17,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:17,688 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:30:17,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:30:17,689 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:17,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:17,689 INFO L85 PathProgramCache]: Analyzing trace with hash 554879874, now seen corresponding path program 1 times [2024-11-18 19:30:17,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:17,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592706498] [2024-11-18 19:30:17,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:17,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:18,712 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-18 19:30:18,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:18,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592706498] [2024-11-18 19:30:18,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592706498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:18,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:18,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:30:18,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083168739] [2024-11-18 19:30:18,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:18,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:30:18,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:18,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:30:18,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:30:18,718 INFO L87 Difference]: Start difference. First operand 1627 states and 2682 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:19,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:19,382 INFO L93 Difference]: Finished difference Result 4804 states and 7874 transitions. [2024-11-18 19:30:19,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:30:19,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 460 [2024-11-18 19:30:19,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:19,396 INFO L225 Difference]: With dead ends: 4804 [2024-11-18 19:30:19,397 INFO L226 Difference]: Without dead ends: 3180 [2024-11-18 19:30:19,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:30:19,401 INFO L432 NwaCegarLoop]: 665 mSDtfsCounter, 650 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:19,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 1547 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:30:19,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2024-11-18 19:30:19,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 3173. [2024-11-18 19:30:19,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3173 states, 2407 states have (on average 1.5488159534690487) internal successors, (3728), 2419 states have internal predecessors, (3728), 729 states have call successors, (729), 36 states have call predecessors, (729), 36 states have return successors, (729), 717 states have call predecessors, (729), 729 states have call successors, (729) [2024-11-18 19:30:19,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3173 states to 3173 states and 5186 transitions. [2024-11-18 19:30:19,625 INFO L78 Accepts]: Start accepts. Automaton has 3173 states and 5186 transitions. Word has length 460 [2024-11-18 19:30:19,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:19,626 INFO L471 AbstractCegarLoop]: Abstraction has 3173 states and 5186 transitions. [2024-11-18 19:30:19,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:19,626 INFO L276 IsEmpty]: Start isEmpty. Operand 3173 states and 5186 transitions. [2024-11-18 19:30:19,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-18 19:30:19,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:19,632 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:30:19,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:30:19,632 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:19,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:19,633 INFO L85 PathProgramCache]: Analyzing trace with hash 539361156, now seen corresponding path program 1 times [2024-11-18 19:30:19,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:19,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564142497] [2024-11-18 19:30:19,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:19,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:20,169 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-18 19:30:20,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:20,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564142497] [2024-11-18 19:30:20,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564142497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:20,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:20,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:30:20,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282413514] [2024-11-18 19:30:20,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:20,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:30:20,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:20,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:30:20,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:30:20,171 INFO L87 Difference]: Start difference. First operand 3173 states and 5186 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:20,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:20,606 INFO L93 Difference]: Finished difference Result 8397 states and 13657 transitions. [2024-11-18 19:30:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:30:20,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 460 [2024-11-18 19:30:20,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:20,633 INFO L225 Difference]: With dead ends: 8397 [2024-11-18 19:30:20,633 INFO L226 Difference]: Without dead ends: 5227 [2024-11-18 19:30:20,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:30:20,643 INFO L432 NwaCegarLoop]: 600 mSDtfsCounter, 723 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:20,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 1398 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:30:20,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5227 states. [2024-11-18 19:30:21,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5227 to 5170. [2024-11-18 19:30:21,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5170 states, 3882 states have (on average 1.529108706852138) internal successors, (5936), 3904 states have internal predecessors, (5936), 1211 states have call successors, (1211), 76 states have call predecessors, (1211), 76 states have return successors, (1211), 1189 states have call predecessors, (1211), 1211 states have call successors, (1211) [2024-11-18 19:30:21,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 5170 states and 8358 transitions. [2024-11-18 19:30:21,118 INFO L78 Accepts]: Start accepts. Automaton has 5170 states and 8358 transitions. Word has length 460 [2024-11-18 19:30:21,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:21,119 INFO L471 AbstractCegarLoop]: Abstraction has 5170 states and 8358 transitions. [2024-11-18 19:30:21,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:21,119 INFO L276 IsEmpty]: Start isEmpty. Operand 5170 states and 8358 transitions. [2024-11-18 19:30:21,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-18 19:30:21,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:21,126 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:30:21,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:30:21,127 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:21,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:21,127 INFO L85 PathProgramCache]: Analyzing trace with hash 386574991, now seen corresponding path program 1 times [2024-11-18 19:30:21,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:21,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200527004] [2024-11-18 19:30:21,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:21,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:21,626 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-18 19:30:21,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:21,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200527004] [2024-11-18 19:30:21,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200527004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:21,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:21,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:30:21,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579748998] [2024-11-18 19:30:21,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:21,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:30:21,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:21,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:30:21,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:30:21,629 INFO L87 Difference]: Start difference. First operand 5170 states and 8358 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:22,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:22,160 INFO L93 Difference]: Finished difference Result 10265 states and 16589 transitions. [2024-11-18 19:30:22,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:30:22,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 461 [2024-11-18 19:30:22,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:22,195 INFO L225 Difference]: With dead ends: 10265 [2024-11-18 19:30:22,196 INFO L226 Difference]: Without dead ends: 5140 [2024-11-18 19:30:22,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:30:22,209 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 377 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:22,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 731 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:30:22,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5140 states. [2024-11-18 19:30:22,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5140 to 5140. [2024-11-18 19:30:22,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5140 states, 3852 states have (on average 1.5020768431983385) internal successors, (5786), 3874 states have internal predecessors, (5786), 1211 states have call successors, (1211), 76 states have call predecessors, (1211), 76 states have return successors, (1211), 1189 states have call predecessors, (1211), 1211 states have call successors, (1211) [2024-11-18 19:30:22,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5140 states to 5140 states and 8208 transitions. [2024-11-18 19:30:22,671 INFO L78 Accepts]: Start accepts. Automaton has 5140 states and 8208 transitions. Word has length 461 [2024-11-18 19:30:22,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:22,672 INFO L471 AbstractCegarLoop]: Abstraction has 5140 states and 8208 transitions. [2024-11-18 19:30:22,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:22,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5140 states and 8208 transitions. [2024-11-18 19:30:22,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-18 19:30:22,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:22,682 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:30:22,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:30:22,683 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:22,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:22,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1421563959, now seen corresponding path program 1 times [2024-11-18 19:30:22,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:22,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55545283] [2024-11-18 19:30:22,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:22,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:23,781 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-18 19:30:23,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:23,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55545283] [2024-11-18 19:30:23,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55545283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:23,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:23,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 19:30:23,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960596526] [2024-11-18 19:30:23,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:23,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 19:30:23,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:23,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 19:30:23,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-18 19:30:23,784 INFO L87 Difference]: Start difference. First operand 5140 states and 8208 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:29,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:29,268 INFO L93 Difference]: Finished difference Result 25551 states and 40140 transitions. [2024-11-18 19:30:29,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 19:30:29,269 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 462 [2024-11-18 19:30:29,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:29,358 INFO L225 Difference]: With dead ends: 25551 [2024-11-18 19:30:29,359 INFO L226 Difference]: Without dead ends: 21270 [2024-11-18 19:30:29,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2024-11-18 19:30:29,377 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 2145 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 1089 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 2764 SdHoareTripleChecker+Invalid, 3036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1089 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:29,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2145 Valid, 2764 Invalid, 3036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1089 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-18 19:30:29,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21270 states. [2024-11-18 19:30:31,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21270 to 19701. [2024-11-18 19:30:31,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19701 states, 14472 states have (on average 1.4614427860696517) internal successors, (21150), 14588 states have internal predecessors, (21150), 4860 states have call successors, (4860), 368 states have call predecessors, (4860), 368 states have return successors, (4860), 4744 states have call predecessors, (4860), 4860 states have call successors, (4860) [2024-11-18 19:30:31,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19701 states to 19701 states and 30870 transitions. [2024-11-18 19:30:31,172 INFO L78 Accepts]: Start accepts. Automaton has 19701 states and 30870 transitions. Word has length 462 [2024-11-18 19:30:31,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:31,173 INFO L471 AbstractCegarLoop]: Abstraction has 19701 states and 30870 transitions. [2024-11-18 19:30:31,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:31,173 INFO L276 IsEmpty]: Start isEmpty. Operand 19701 states and 30870 transitions. [2024-11-18 19:30:31,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-18 19:30:31,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:31,186 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:30:31,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:30:31,186 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:31,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:31,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1398931705, now seen corresponding path program 1 times [2024-11-18 19:30:31,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:31,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404088683] [2024-11-18 19:30:31,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:31,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:32,004 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 99 proven. 111 refuted. 0 times theorem prover too weak. 9730 trivial. 0 not checked. [2024-11-18 19:30:32,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:32,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404088683] [2024-11-18 19:30:32,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404088683] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:30:32,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564479197] [2024-11-18 19:30:32,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:32,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:30:32,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:30:32,010 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:30:32,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:30:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:32,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-18 19:30:32,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:30:32,701 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 5020 proven. 111 refuted. 0 times theorem prover too weak. 4809 trivial. 0 not checked. [2024-11-18 19:30:32,702 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 19:30:33,384 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 99 proven. 111 refuted. 0 times theorem prover too weak. 9730 trivial. 0 not checked. [2024-11-18 19:30:33,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564479197] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 19:30:33,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 19:30:33,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-18 19:30:33,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796896963] [2024-11-18 19:30:33,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 19:30:33,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 19:30:33,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:33,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 19:30:33,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-18 19:30:33,388 INFO L87 Difference]: Start difference. First operand 19701 states and 30870 transitions. Second operand has 10 states, 10 states have (on average 17.7) internal successors, (177), 10 states have internal predecessors, (177), 3 states have call successors, (145), 2 states have call predecessors, (145), 4 states have return successors, (146), 3 states have call predecessors, (146), 3 states have call successors, (146) [2024-11-18 19:30:37,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:37,011 INFO L93 Difference]: Finished difference Result 57416 states and 88515 transitions. [2024-11-18 19:30:37,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 19:30:37,012 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.7) internal successors, (177), 10 states have internal predecessors, (177), 3 states have call successors, (145), 2 states have call predecessors, (145), 4 states have return successors, (146), 3 states have call predecessors, (146), 3 states have call successors, (146) Word has length 462 [2024-11-18 19:30:37,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:37,163 INFO L225 Difference]: With dead ends: 57416 [2024-11-18 19:30:37,163 INFO L226 Difference]: Without dead ends: 37816 [2024-11-18 19:30:37,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 938 GetRequests, 921 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=132, Invalid=210, Unknown=0, NotChecked=0, Total=342 [2024-11-18 19:30:37,224 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 706 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:37,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 969 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:30:37,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37816 states. [2024-11-18 19:30:40,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37816 to 36473. [2024-11-18 19:30:40,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36473 states, 27288 states have (on average 1.4474860744649662) internal successors, (39499), 27538 states have internal predecessors, (39499), 8344 states have call successors, (8344), 840 states have call predecessors, (8344), 840 states have return successors, (8344), 8094 states have call predecessors, (8344), 8344 states have call successors, (8344) [2024-11-18 19:30:41,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36473 states to 36473 states and 56187 transitions. [2024-11-18 19:30:41,260 INFO L78 Accepts]: Start accepts. Automaton has 36473 states and 56187 transitions. Word has length 462 [2024-11-18 19:30:41,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:41,261 INFO L471 AbstractCegarLoop]: Abstraction has 36473 states and 56187 transitions. [2024-11-18 19:30:41,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.7) internal successors, (177), 10 states have internal predecessors, (177), 3 states have call successors, (145), 2 states have call predecessors, (145), 4 states have return successors, (146), 3 states have call predecessors, (146), 3 states have call successors, (146) [2024-11-18 19:30:41,262 INFO L276 IsEmpty]: Start isEmpty. Operand 36473 states and 56187 transitions. [2024-11-18 19:30:41,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-11-18 19:30:41,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:41,284 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:30:41,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 19:30:41,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-18 19:30:41,486 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:41,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:41,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2031954267, now seen corresponding path program 1 times [2024-11-18 19:30:41,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:41,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030969979] [2024-11-18 19:30:41,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:41,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-18 19:30:41,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:41,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030969979] [2024-11-18 19:30:41,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030969979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:41,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:41,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:30:41,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511088932] [2024-11-18 19:30:41,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:41,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:30:41,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:41,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:30:41,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:30:41,792 INFO L87 Difference]: Start difference. First operand 36473 states and 56187 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:47,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:30:47,218 INFO L93 Difference]: Finished difference Result 92065 states and 141589 transitions. [2024-11-18 19:30:47,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:30:47,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 463 [2024-11-18 19:30:47,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:30:47,461 INFO L225 Difference]: With dead ends: 92065 [2024-11-18 19:30:47,462 INFO L226 Difference]: Without dead ends: 55705 [2024-11-18 19:30:47,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:30:47,546 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 215 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:30:47,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 779 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:30:47,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55705 states. [2024-11-18 19:30:53,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55705 to 55673. [2024-11-18 19:30:53,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55673 states, 41482 states have (on average 1.4363338315413914) internal successors, (59582), 41871 states have internal predecessors, (59582), 12886 states have call successors, (12886), 1304 states have call predecessors, (12886), 1304 states have return successors, (12886), 12497 states have call predecessors, (12886), 12886 states have call successors, (12886) [2024-11-18 19:30:53,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55673 states to 55673 states and 85354 transitions. [2024-11-18 19:30:53,608 INFO L78 Accepts]: Start accepts. Automaton has 55673 states and 85354 transitions. Word has length 463 [2024-11-18 19:30:53,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:30:53,609 INFO L471 AbstractCegarLoop]: Abstraction has 55673 states and 85354 transitions. [2024-11-18 19:30:53,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-18 19:30:53,609 INFO L276 IsEmpty]: Start isEmpty. Operand 55673 states and 85354 transitions. [2024-11-18 19:30:53,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-11-18 19:30:53,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:30:53,637 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:30:53,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 19:30:53,637 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:30:53,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:30:53,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1969914653, now seen corresponding path program 1 times [2024-11-18 19:30:53,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:30:53,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278664665] [2024-11-18 19:30:53,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:30:53,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:30:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:30:55,523 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-18 19:30:55,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:30:55,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278664665] [2024-11-18 19:30:55,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278664665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:30:55,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:30:55,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:30:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147464796] [2024-11-18 19:30:55,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:30:55,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:30:55,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:30:55,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:30:55,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:30:55,525 INFO L87 Difference]: Start difference. First operand 55673 states and 85354 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71)