./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-64.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 e1284d110aec8c9fc5da783d4e31facf9c686765dccc1866ab0c2c6ea65f610a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 08:59:25,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 08:59:25,717 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 08:59:25,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 08:59:25,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 08:59:25,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 08:59:25,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 08:59:25,756 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 08:59:25,757 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 08:59:25,757 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 08:59:25,758 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 08:59:25,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 08:59:25,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 08:59:25,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 08:59:25,760 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 08:59:25,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 08:59:25,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 08:59:25,761 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 08:59:25,761 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 08:59:25,761 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 08:59:25,762 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 08:59:25,762 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 08:59:25,762 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 08:59:25,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 08:59:25,763 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 08:59:25,763 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 08:59:25,764 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 08:59:25,764 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 08:59:25,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 08:59:25,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 08:59:25,765 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 08:59:25,765 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 08:59:25,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:59:25,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 08:59:25,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 08:59:25,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 08:59:25,768 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 08:59:25,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 08:59:25,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 08:59:25,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 08:59:25,769 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 08:59:25,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 08:59:25,770 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1284d110aec8c9fc5da783d4e31facf9c686765dccc1866ab0c2c6ea65f610a [2024-11-20 08:59:26,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 08:59:26,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 08:59:26,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 08:59:26,070 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 08:59:26,071 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 08:59:26,072 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-64.i [2024-11-20 08:59:27,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 08:59:27,755 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 08:59:27,756 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-64.i [2024-11-20 08:59:27,766 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a41f7eb2f/35ffbc432cfb41eda3580edce0699e20/FLAG4f20ebb6d [2024-11-20 08:59:27,781 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a41f7eb2f/35ffbc432cfb41eda3580edce0699e20 [2024-11-20 08:59:27,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 08:59:27,785 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 08:59:27,786 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 08:59:27,786 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 08:59:27,791 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 08:59:27,792 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:59:27" (1/1) ... [2024-11-20 08:59:27,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7538261a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:27, skipping insertion in model container [2024-11-20 08:59:27,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:59:27" (1/1) ... [2024-11-20 08:59:27,824 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 08:59:27,985 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_variablewrapping_wrapper-s_file-64.i[916,929] [2024-11-20 08:59:28,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:59:28,057 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 08:59:28,071 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_variablewrapping_wrapper-s_file-64.i[916,929] [2024-11-20 08:59:28,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:59:28,140 INFO L204 MainTranslator]: Completed translation [2024-11-20 08:59:28,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:28 WrapperNode [2024-11-20 08:59:28,141 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 08:59:28,142 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 08:59:28,143 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 08:59:28,143 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 08:59:28,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:28" (1/1) ... [2024-11-20 08:59:28,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:28" (1/1) ... [2024-11-20 08:59:28,220 INFO L138 Inliner]: procedures = 30, calls = 163, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 517 [2024-11-20 08:59:28,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 08:59:28,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 08:59:28,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 08:59:28,222 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 08:59:28,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:28" (1/1) ... [2024-11-20 08:59:28,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:28" (1/1) ... [2024-11-20 08:59:28,243 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:28" (1/1) ... [2024-11-20 08:59:28,250 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-20 08:59:28,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:28" (1/1) ... [2024-11-20 08:59:28,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:28" (1/1) ... [2024-11-20 08:59:28,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:28" (1/1) ... [2024-11-20 08:59:28,297 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:28" (1/1) ... [2024-11-20 08:59:28,300 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:28" (1/1) ... [2024-11-20 08:59:28,309 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:28" (1/1) ... [2024-11-20 08:59:28,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 08:59:28,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 08:59:28,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 08:59:28,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 08:59:28,324 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:28" (1/1) ... [2024-11-20 08:59:28,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:59:28,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:59:28,367 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) [2024-11-20 08:59:28,374 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 [2024-11-20 08:59:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 08:59:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-20 08:59:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-20 08:59:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 08:59:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-20 08:59:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-20 08:59:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 08:59:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 08:59:28,425 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 08:59:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 08:59:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 08:59:28,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 08:59:28,569 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 08:59:28,571 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 08:59:29,433 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-20 08:59:29,433 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 08:59:29,452 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 08:59:29,453 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 08:59:29,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:59:29 BoogieIcfgContainer [2024-11-20 08:59:29,454 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 08:59:29,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 08:59:29,458 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 08:59:29,461 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 08:59:29,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:59:27" (1/3) ... [2024-11-20 08:59:29,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1adf991c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:59:29, skipping insertion in model container [2024-11-20 08:59:29,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:59:28" (2/3) ... [2024-11-20 08:59:29,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1adf991c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:59:29, skipping insertion in model container [2024-11-20 08:59:29,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:59:29" (3/3) ... [2024-11-20 08:59:29,465 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-64.i [2024-11-20 08:59:29,481 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 08:59:29,481 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 08:59:29,539 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 08:59:29,547 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;@785315fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 08:59:29,548 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 08:59:29,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 106 states have (on average 1.4339622641509433) internal successors, (152), 107 states have internal predecessors, (152), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 08:59:29,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-20 08:59:29,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:59:29,568 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:59:29,569 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:59:29,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:59:29,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1195243386, now seen corresponding path program 1 times [2024-11-20 08:59:29,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:59:29,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832236060] [2024-11-20 08:59:29,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:59:29,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:59:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:59:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:59:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:59:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:59:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:59:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:59:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:59:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:59:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:59:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:59:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:59:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:59:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:59:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:59:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:59:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:59:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:59:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:59:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 08:59:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 08:59:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,194 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 08:59:30,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:59:30,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832236060] [2024-11-20 08:59:30,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832236060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:59:30,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:59:30,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 08:59:30,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171055153] [2024-11-20 08:59:30,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:59:30,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 08:59:30,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:59:30,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 08:59:30,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:59:30,236 INFO L87 Difference]: Start difference. First operand has 129 states, 106 states have (on average 1.4339622641509433) internal successors, (152), 107 states have internal predecessors, (152), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 08:59:30,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:59:30,277 INFO L93 Difference]: Finished difference Result 251 states and 398 transitions. [2024-11-20 08:59:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 08:59:30,280 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 159 [2024-11-20 08:59:30,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:59:30,288 INFO L225 Difference]: With dead ends: 251 [2024-11-20 08:59:30,288 INFO L226 Difference]: Without dead ends: 125 [2024-11-20 08:59:30,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:59:30,296 INFO L432 NwaCegarLoop]: 185 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, 185 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 [2024-11-20 08:59:30,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:59:30,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-20 08:59:30,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-20 08:59:30,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 103 states have (on average 1.4077669902912622) internal successors, (145), 103 states have internal predecessors, (145), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 08:59:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 185 transitions. [2024-11-20 08:59:30,347 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 185 transitions. Word has length 159 [2024-11-20 08:59:30,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:59:30,348 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 185 transitions. [2024-11-20 08:59:30,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 08:59:30,348 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 185 transitions. [2024-11-20 08:59:30,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-20 08:59:30,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:59:30,353 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:59:30,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 08:59:30,354 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:59:30,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:59:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1462741734, now seen corresponding path program 1 times [2024-11-20 08:59:30,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:59:30,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239127097] [2024-11-20 08:59:30,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:59:30,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:59:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:59:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:59:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:59:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:59:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:59:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:59:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:59:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:59:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:59:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:59:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:59:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:59:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:59:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:59:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:59:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:59:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:59:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:59:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 08:59:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 08:59:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:30,874 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 08:59:30,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:59:30,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239127097] [2024-11-20 08:59:30,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239127097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:59:30,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:59:30,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:59:30,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151838929] [2024-11-20 08:59:30,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:59:30,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:59:30,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:59:30,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:59:30,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:59:30,879 INFO L87 Difference]: Start difference. First operand 125 states and 185 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 08:59:30,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:59:30,936 INFO L93 Difference]: Finished difference Result 249 states and 370 transitions. [2024-11-20 08:59:30,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:59:30,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-11-20 08:59:30,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:59:30,940 INFO L225 Difference]: With dead ends: 249 [2024-11-20 08:59:30,943 INFO L226 Difference]: Without dead ends: 127 [2024-11-20 08:59:30,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:59:30,947 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:59:30,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 538 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:59:30,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-20 08:59:30,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-20 08:59:30,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 105 states have (on average 1.4) internal successors, (147), 105 states have internal predecessors, (147), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 08:59:30,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 187 transitions. [2024-11-20 08:59:30,976 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 187 transitions. Word has length 159 [2024-11-20 08:59:30,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:59:30,978 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 187 transitions. [2024-11-20 08:59:30,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 08:59:30,979 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 187 transitions. [2024-11-20 08:59:30,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-20 08:59:30,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:59:30,984 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:59:30,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 08:59:30,984 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:59:30,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:59:30,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1083783032, now seen corresponding path program 1 times [2024-11-20 08:59:30,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:59:30,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510975472] [2024-11-20 08:59:30,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:59:30,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:59:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:59:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:59:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:59:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:59:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:59:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:59:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:59:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:59:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:59:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:59:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:59:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:59:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:59:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:59:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:59:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:59:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:59:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:59:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 08:59:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 08:59:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:31,492 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 08:59:31,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:59:31,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510975472] [2024-11-20 08:59:31,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510975472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:59:31,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:59:31,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:59:31,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687564396] [2024-11-20 08:59:31,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:59:31,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:59:31,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:59:31,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:59:31,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:59:31,498 INFO L87 Difference]: Start difference. First operand 127 states and 187 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 08:59:31,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:59:31,571 INFO L93 Difference]: Finished difference Result 254 states and 375 transitions. [2024-11-20 08:59:31,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:59:31,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 161 [2024-11-20 08:59:31,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:59:31,574 INFO L225 Difference]: With dead ends: 254 [2024-11-20 08:59:31,574 INFO L226 Difference]: Without dead ends: 130 [2024-11-20 08:59:31,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:59:31,576 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:59:31,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 711 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:59:31,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-20 08:59:31,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-11-20 08:59:31,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 108 states have (on average 1.3888888888888888) internal successors, (150), 108 states have internal predecessors, (150), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 08:59:31,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 190 transitions. [2024-11-20 08:59:31,598 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 190 transitions. Word has length 161 [2024-11-20 08:59:31,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:59:31,599 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 190 transitions. [2024-11-20 08:59:31,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 08:59:31,599 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 190 transitions. [2024-11-20 08:59:31,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-20 08:59:31,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:59:31,606 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:59:31,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 08:59:31,606 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:59:31,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:59:31,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1604015989, now seen corresponding path program 1 times [2024-11-20 08:59:31,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:59:31,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417447923] [2024-11-20 08:59:31,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:59:31,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:59:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:59:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:59:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:59:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:59:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:59:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:59:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:59:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:59:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:59:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:59:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:59:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:59:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:59:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:59:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:59:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:59:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:59:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:59:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 08:59:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 08:59:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 08:59:33,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:59:33,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417447923] [2024-11-20 08:59:33,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417447923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:59:33,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:59:33,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:59:33,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450255379] [2024-11-20 08:59:33,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:59:33,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:59:33,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:59:33,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:59:33,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:59:33,984 INFO L87 Difference]: Start difference. First operand 130 states and 190 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 08:59:35,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:59:35,145 INFO L93 Difference]: Finished difference Result 435 states and 636 transitions. [2024-11-20 08:59:35,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 08:59:35,146 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2024-11-20 08:59:35,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:59:35,150 INFO L225 Difference]: With dead ends: 435 [2024-11-20 08:59:35,150 INFO L226 Difference]: Without dead ends: 308 [2024-11-20 08:59:35,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-20 08:59:35,152 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 241 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:59:35,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 664 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 08:59:35,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-20 08:59:35,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 215. [2024-11-20 08:59:35,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 172 states have (on average 1.372093023255814) internal successors, (236), 172 states have internal predecessors, (236), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 08:59:35,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 316 transitions. [2024-11-20 08:59:35,173 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 316 transitions. Word has length 162 [2024-11-20 08:59:35,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:59:35,173 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 316 transitions. [2024-11-20 08:59:35,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 08:59:35,174 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 316 transitions. [2024-11-20 08:59:35,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-20 08:59:35,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:59:35,176 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:59:35,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 08:59:35,177 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:59:35,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:59:35,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1486816476, now seen corresponding path program 1 times [2024-11-20 08:59:35,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:59:35,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215393000] [2024-11-20 08:59:35,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:59:35,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:59:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:59:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:59:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:59:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:59:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:59:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:59:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:59:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:59:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:59:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:59:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:59:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:59:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:59:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:59:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:59:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:59:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:59:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:59:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 08:59:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 08:59:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:35,478 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 08:59:35,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:59:35,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215393000] [2024-11-20 08:59:35,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215393000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:59:35,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:59:35,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:59:35,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983629246] [2024-11-20 08:59:35,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:59:35,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:59:35,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:59:35,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:59:35,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:59:35,481 INFO L87 Difference]: Start difference. First operand 215 states and 316 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 08:59:35,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:59:35,516 INFO L93 Difference]: Finished difference Result 345 states and 507 transitions. [2024-11-20 08:59:35,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:59:35,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 163 [2024-11-20 08:59:35,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:59:35,519 INFO L225 Difference]: With dead ends: 345 [2024-11-20 08:59:35,519 INFO L226 Difference]: Without dead ends: 218 [2024-11-20 08:59:35,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:59:35,521 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:59:35,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 712 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:59:35,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-20 08:59:35,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2024-11-20 08:59:35,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 175 states have (on average 1.3657142857142857) internal successors, (239), 175 states have internal predecessors, (239), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 08:59:35,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 319 transitions. [2024-11-20 08:59:35,538 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 319 transitions. Word has length 163 [2024-11-20 08:59:35,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:59:35,539 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 319 transitions. [2024-11-20 08:59:35,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 08:59:35,540 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 319 transitions. [2024-11-20 08:59:35,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-20 08:59:35,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:59:35,542 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:59:35,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 08:59:35,542 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:59:35,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:59:35,543 INFO L85 PathProgramCache]: Analyzing trace with hash -282735875, now seen corresponding path program 1 times [2024-11-20 08:59:35,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:59:35,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288959464] [2024-11-20 08:59:35,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:59:35,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:59:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:59:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:59:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:59:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:59:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:59:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:59:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:59:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 08:59:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:59:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 08:59:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:59:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:59:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:59:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:59:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:59:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:59:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:59:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 08:59:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 08:59:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 08:59:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,652 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-20 08:59:37,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:59:37,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288959464] [2024-11-20 08:59:37,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288959464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 08:59:37,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245090814] [2024-11-20 08:59:37,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:59:37,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 08:59:37,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:59:37,657 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) [2024-11-20 08:59:37,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 08:59:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:59:37,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-20 08:59:37,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 08:59:38,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-20 08:59:38,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-20 08:59:38,233 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 08:59:38,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2024-11-20 08:59:38,568 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 08:59:38,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 17 [2024-11-20 08:59:38,698 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 357 proven. 18 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2024-11-20 08:59:38,698 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 08:59:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 39 proven. 18 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-20 08:59:39,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245090814] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 08:59:39,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 08:59:39,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16, 15] total 33 [2024-11-20 08:59:39,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449380204] [2024-11-20 08:59:39,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 08:59:39,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-20 08:59:39,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:59:39,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-20 08:59:39,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=914, Unknown=0, NotChecked=0, Total=1056 [2024-11-20 08:59:39,703 INFO L87 Difference]: Start difference. First operand 218 states and 319 transitions. Second operand has 33 states, 30 states have (on average 5.266666666666667) internal successors, (158), 33 states have internal predecessors, (158), 8 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (47), 5 states have call predecessors, (47), 8 states have call successors, (47) [2024-11-20 08:59:44,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:59:44,751 INFO L93 Difference]: Finished difference Result 588 states and 831 transitions. [2024-11-20 08:59:44,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-20 08:59:44,754 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 30 states have (on average 5.266666666666667) internal successors, (158), 33 states have internal predecessors, (158), 8 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (47), 5 states have call predecessors, (47), 8 states have call successors, (47) Word has length 163 [2024-11-20 08:59:44,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:59:44,757 INFO L225 Difference]: With dead ends: 588 [2024-11-20 08:59:44,757 INFO L226 Difference]: Without dead ends: 439 [2024-11-20 08:59:44,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1379 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=816, Invalid=5504, Unknown=0, NotChecked=0, Total=6320 [2024-11-20 08:59:44,761 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1400 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 3567 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 3906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 3567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:59:44,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 1977 Invalid, 3906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 3567 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-20 08:59:44,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-20 08:59:44,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 253. [2024-11-20 08:59:44,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 206 states have (on average 1.354368932038835) internal successors, (279), 206 states have internal predecessors, (279), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 08:59:44,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 359 transitions. [2024-11-20 08:59:44,811 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 359 transitions. Word has length 163 [2024-11-20 08:59:44,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:59:44,814 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 359 transitions. [2024-11-20 08:59:44,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 30 states have (on average 5.266666666666667) internal successors, (158), 33 states have internal predecessors, (158), 8 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (47), 5 states have call predecessors, (47), 8 states have call successors, (47) [2024-11-20 08:59:44,815 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 359 transitions. [2024-11-20 08:59:44,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-20 08:59:44,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:59:44,820 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:59:44,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 08:59:45,020 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,SelfDestructingSolverStorable5 [2024-11-20 08:59:45,021 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:59:45,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:59:45,022 INFO L85 PathProgramCache]: Analyzing trace with hash 949264861, now seen corresponding path program 1 times [2024-11-20 08:59:45,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:59:45,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601597693] [2024-11-20 08:59:45,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:59:45,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:59:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat