./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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/recursive-simple/fibo_2calls_8-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 19:05:04,995 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 19:05:05,069 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 19:05:05,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 19:05:05,073 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 19:05:05,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 19:05:05,094 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 19:05:05,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 19:05:05,095 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 19:05:05,095 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 19:05:05,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 19:05:05,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 19:05:05,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 19:05:05,096 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 19:05:05,097 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 19:05:05,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 19:05:05,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 19:05:05,099 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 19:05:05,099 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 19:05:05,099 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 19:05:05,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 19:05:05,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 19:05:05,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 19:05:05,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 19:05:05,102 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 19:05:05,102 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 19:05:05,102 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 19:05:05,103 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 19:05:05,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 19:05:05,103 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 19:05:05,103 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 19:05:05,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 19:05:05,103 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 19:05:05,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 19:05:05,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 19:05:05,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 19:05:05,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 19:05:05,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 19:05:05,104 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 19:05:05,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 19:05:05,104 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 19:05:05,106 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 19:05:05,106 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 19:05:05,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 19:05:05,107 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 [2024-11-20 19:05:05,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 19:05:05,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 19:05:05,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 19:05:05,332 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 19:05:05,332 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 19:05:05,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-11-20 19:05:06,533 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 19:05:06,681 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 19:05:06,682 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-11-20 19:05:06,690 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1882b5c4e/72f8939e121f45b792026b87c6aa3a23/FLAG61e3bbc6e [2024-11-20 19:05:06,703 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1882b5c4e/72f8939e121f45b792026b87c6aa3a23 [2024-11-20 19:05:06,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 19:05:06,708 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 19:05:06,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 19:05:06,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 19:05:06,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 19:05:06,715 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:05:06" (1/1) ... [2024-11-20 19:05:06,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7282d4ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06, skipping insertion in model container [2024-11-20 19:05:06,716 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:05:06" (1/1) ... [2024-11-20 19:05:06,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 19:05:06,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 19:05:06,858 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 19:05:06,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 19:05:06,881 INFO L204 MainTranslator]: Completed translation [2024-11-20 19:05:06,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06 WrapperNode [2024-11-20 19:05:06,882 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 19:05:06,883 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 19:05:06,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 19:05:06,883 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 19:05:06,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06" (1/1) ... [2024-11-20 19:05:06,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06" (1/1) ... [2024-11-20 19:05:06,906 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2024-11-20 19:05:06,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 19:05:06,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 19:05:06,908 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 19:05:06,908 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 19:05:06,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06" (1/1) ... [2024-11-20 19:05:06,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06" (1/1) ... [2024-11-20 19:05:06,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06" (1/1) ... [2024-11-20 19:05:06,936 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 19:05:06,937 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06" (1/1) ... [2024-11-20 19:05:06,937 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06" (1/1) ... [2024-11-20 19:05:06,939 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06" (1/1) ... [2024-11-20 19:05:06,942 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06" (1/1) ... [2024-11-20 19:05:06,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06" (1/1) ... [2024-11-20 19:05:06,943 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06" (1/1) ... [2024-11-20 19:05:06,944 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 19:05:06,945 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 19:05:06,945 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 19:05:06,945 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 19:05:06,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06" (1/1) ... [2024-11-20 19:05:06,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 19:05:06,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:06,989 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 19:05:06,994 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 19:05:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 19:05:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 19:05:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-11-20 19:05:07,040 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-11-20 19:05:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-11-20 19:05:07,040 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-11-20 19:05:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 19:05:07,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 19:05:07,082 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 19:05:07,083 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 19:05:07,192 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-20 19:05:07,192 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 19:05:07,203 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 19:05:07,204 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 19:05:07,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:05:07 BoogieIcfgContainer [2024-11-20 19:05:07,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 19:05:07,206 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 19:05:07,206 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 19:05:07,208 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 19:05:07,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:05:06" (1/3) ... [2024-11-20 19:05:07,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46614e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:05:07, skipping insertion in model container [2024-11-20 19:05:07,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:06" (2/3) ... [2024-11-20 19:05:07,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46614e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:05:07, skipping insertion in model container [2024-11-20 19:05:07,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:05:07" (3/3) ... [2024-11-20 19:05:07,210 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2024-11-20 19:05:07,222 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 19:05:07,223 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-20 19:05:07,272 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 19:05:07,276 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;@79a3445d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 19:05:07,276 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-20 19:05:07,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 45 states have internal predecessors, (50), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-20 19:05:07,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-20 19:05:07,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:07,285 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:07,286 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:07,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:07,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1867028009, now seen corresponding path program 1 times [2024-11-20 19:05:07,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:07,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649950574] [2024-11-20 19:05:07,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:07,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:07,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:05:07,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:07,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649950574] [2024-11-20 19:05:07,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649950574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:07,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:05:07,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 19:05:07,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368332530] [2024-11-20 19:05:07,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:07,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 19:05:07,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:07,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 19:05:07,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 19:05:07,442 INFO L87 Difference]: Start difference. First operand has 53 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 45 states have internal predecessors, (50), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:05:07,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:07,496 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2024-11-20 19:05:07,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 19:05:07,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-20 19:05:07,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:07,505 INFO L225 Difference]: With dead ends: 59 [2024-11-20 19:05:07,505 INFO L226 Difference]: Without dead ends: 45 [2024-11-20 19:05:07,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 19:05:07,510 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 11 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:07,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 92 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:05:07,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-20 19:05:07,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2024-11-20 19:05:07,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 36 states have internal predecessors, (40), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-20 19:05:07,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2024-11-20 19:05:07,545 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 7 [2024-11-20 19:05:07,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:07,545 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2024-11-20 19:05:07,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:05:07,545 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2024-11-20 19:05:07,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-20 19:05:07,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:07,546 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:07,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 19:05:07,547 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:07,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:07,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2043293518, now seen corresponding path program 1 times [2024-11-20 19:05:07,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:07,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488197943] [2024-11-20 19:05:07,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:07,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:07,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:05:07,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:07,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488197943] [2024-11-20 19:05:07,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488197943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:07,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:05:07,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 19:05:07,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444513414] [2024-11-20 19:05:07,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:07,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 19:05:07,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:07,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 19:05:07,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:05:07,616 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:05:07,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:07,680 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2024-11-20 19:05:07,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 19:05:07,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-20 19:05:07,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:07,683 INFO L225 Difference]: With dead ends: 64 [2024-11-20 19:05:07,683 INFO L226 Difference]: Without dead ends: 58 [2024-11-20 19:05:07,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 19:05:07,684 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 26 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:07,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 164 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:05:07,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-20 19:05:07,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2024-11-20 19:05:07,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 46 states have internal predecessors, (52), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 19:05:07,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2024-11-20 19:05:07,697 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 8 [2024-11-20 19:05:07,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:07,698 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2024-11-20 19:05:07,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:05:07,698 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2024-11-20 19:05:07,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-20 19:05:07,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:07,698 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:07,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 19:05:07,699 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:07,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:07,699 INFO L85 PathProgramCache]: Analyzing trace with hash -749725533, now seen corresponding path program 1 times [2024-11-20 19:05:07,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:07,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323104642] [2024-11-20 19:05:07,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:07,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:07,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:05:07,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:07,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323104642] [2024-11-20 19:05:07,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323104642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:07,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:05:07,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 19:05:07,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922030329] [2024-11-20 19:05:07,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:07,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 19:05:07,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:07,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 19:05:07,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 19:05:07,731 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:05:07,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:07,748 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2024-11-20 19:05:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 19:05:07,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-20 19:05:07,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:07,750 INFO L225 Difference]: With dead ends: 58 [2024-11-20 19:05:07,750 INFO L226 Difference]: Without dead ends: 56 [2024-11-20 19:05:07,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 19:05:07,751 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 11 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:07,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 72 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:05:07,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-20 19:05:07,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2024-11-20 19:05:07,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 44 states have internal predecessors, (50), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 19:05:07,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2024-11-20 19:05:07,758 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 13 [2024-11-20 19:05:07,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:07,758 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2024-11-20 19:05:07,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:05:07,758 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2024-11-20 19:05:07,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-20 19:05:07,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:07,759 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:07,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 19:05:07,759 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:07,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:07,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1766654982, now seen corresponding path program 1 times [2024-11-20 19:05:07,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:07,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514567611] [2024-11-20 19:05:07,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:07,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:07,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:05:07,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:07,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514567611] [2024-11-20 19:05:07,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514567611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:07,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:05:07,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 19:05:07,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272371374] [2024-11-20 19:05:07,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:07,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 19:05:07,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:07,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 19:05:07,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 19:05:07,854 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:05:07,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:07,974 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2024-11-20 19:05:07,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 19:05:07,975 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-20 19:05:07,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:07,976 INFO L225 Difference]: With dead ends: 58 [2024-11-20 19:05:07,976 INFO L226 Difference]: Without dead ends: 54 [2024-11-20 19:05:07,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-20 19:05:07,977 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 51 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:07,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 102 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:05:07,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-20 19:05:07,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2024-11-20 19:05:07,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 40 states have internal predecessors, (46), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 19:05:07,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2024-11-20 19:05:07,993 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 14 [2024-11-20 19:05:07,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:07,994 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2024-11-20 19:05:07,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:05:07,994 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2024-11-20 19:05:07,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-20 19:05:07,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:07,995 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:07,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 19:05:07,995 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:07,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:07,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2097999453, now seen corresponding path program 1 times [2024-11-20 19:05:07,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:07,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121532734] [2024-11-20 19:05:07,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:07,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:08,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 19:05:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:08,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 19:05:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:08,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 19:05:08,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:08,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121532734] [2024-11-20 19:05:08,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121532734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:08,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:05:08,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 19:05:08,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182795235] [2024-11-20 19:05:08,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:08,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 19:05:08,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:08,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 19:05:08,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:05:08,180 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:05:08,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:08,208 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2024-11-20 19:05:08,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 19:05:08,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2024-11-20 19:05:08,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:08,210 INFO L225 Difference]: With dead ends: 74 [2024-11-20 19:05:08,210 INFO L226 Difference]: Without dead ends: 69 [2024-11-20 19:05:08,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:05:08,211 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 4 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:08,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:05:08,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-20 19:05:08,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2024-11-20 19:05:08,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 50 states have internal predecessors, (56), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (13), 9 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-20 19:05:08,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions. [2024-11-20 19:05:08,219 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 78 transitions. Word has length 23 [2024-11-20 19:05:08,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:08,219 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 78 transitions. [2024-11-20 19:05:08,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:05:08,219 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2024-11-20 19:05:08,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-20 19:05:08,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:08,222 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:08,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 19:05:08,223 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:08,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:08,223 INFO L85 PathProgramCache]: Analyzing trace with hash 624421350, now seen corresponding path program 1 times [2024-11-20 19:05:08,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:08,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370362630] [2024-11-20 19:05:08,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:08,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:08,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 19:05:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:08,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 19:05:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:08,347 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 19:05:08,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:08,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370362630] [2024-11-20 19:05:08,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370362630] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:08,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116997794] [2024-11-20 19:05:08,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:08,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:08,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:08,350 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 19:05:08,351 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 19:05:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:08,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 19:05:08,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:08,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:05:08,478 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 19:05:08,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116997794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:08,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 19:05:08,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2024-11-20 19:05:08,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850751913] [2024-11-20 19:05:08,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:08,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 19:05:08,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:08,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 19:05:08,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-20 19:05:08,480 INFO L87 Difference]: Start difference. First operand 63 states and 78 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:05:08,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:08,570 INFO L93 Difference]: Finished difference Result 113 states and 140 transitions. [2024-11-20 19:05:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 19:05:08,571 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2024-11-20 19:05:08,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:08,573 INFO L225 Difference]: With dead ends: 113 [2024-11-20 19:05:08,573 INFO L226 Difference]: Without dead ends: 63 [2024-11-20 19:05:08,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-20 19:05:08,575 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 32 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:08,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 153 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:05:08,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-20 19:05:08,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2024-11-20 19:05:08,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 47 states have internal predecessors, (53), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-20 19:05:08,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2024-11-20 19:05:08,586 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 24 [2024-11-20 19:05:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:08,586 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2024-11-20 19:05:08,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:05:08,586 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2024-11-20 19:05:08,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-20 19:05:08,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:08,587 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:08,596 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 19:05:08,791 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 19:05:08,792 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:08,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:08,792 INFO L85 PathProgramCache]: Analyzing trace with hash 120521327, now seen corresponding path program 1 times [2024-11-20 19:05:08,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:08,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814986638] [2024-11-20 19:05:08,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:08,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:08,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 19:05:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:08,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 19:05:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:08,857 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 19:05:08,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:08,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814986638] [2024-11-20 19:05:08,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814986638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:08,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:05:08,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 19:05:08,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114705682] [2024-11-20 19:05:08,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:08,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 19:05:08,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:08,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 19:05:08,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:05:08,859 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:05:08,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:08,883 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2024-11-20 19:05:08,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 19:05:08,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2024-11-20 19:05:08,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:08,886 INFO L225 Difference]: With dead ends: 83 [2024-11-20 19:05:08,886 INFO L226 Difference]: Without dead ends: 78 [2024-11-20 19:05:08,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:05:08,887 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:08,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 114 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:05:08,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-20 19:05:08,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2024-11-20 19:05:08,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 55 states have internal predecessors, (60), 10 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (19), 10 states have call predecessors, (19), 9 states have call successors, (19) [2024-11-20 19:05:08,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2024-11-20 19:05:08,898 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 25 [2024-11-20 19:05:08,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:08,898 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2024-11-20 19:05:08,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:05:08,898 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2024-11-20 19:05:08,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-20 19:05:08,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:08,899 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 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 19:05:08,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 19:05:08,899 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:08,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:08,900 INFO L85 PathProgramCache]: Analyzing trace with hash -473230649, now seen corresponding path program 1 times [2024-11-20 19:05:08,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:08,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787232158] [2024-11-20 19:05:08,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:08,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:08,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:08,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 19:05:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:08,968 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 19:05:08,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:08,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787232158] [2024-11-20 19:05:08,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787232158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:08,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:05:08,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 19:05:08,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908180103] [2024-11-20 19:05:08,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:08,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 19:05:08,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:08,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 19:05:08,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:05:08,972 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:05:09,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:09,001 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2024-11-20 19:05:09,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 19:05:09,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2024-11-20 19:05:09,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:09,004 INFO L225 Difference]: With dead ends: 83 [2024-11-20 19:05:09,004 INFO L226 Difference]: Without dead ends: 81 [2024-11-20 19:05:09,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:05:09,005 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 4 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:09,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:05:09,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-20 19:05:09,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2024-11-20 19:05:09,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 58 states have (on average 1.1551724137931034) internal successors, (67), 62 states have internal predecessors, (67), 11 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (23), 12 states have call predecessors, (23), 10 states have call successors, (23) [2024-11-20 19:05:09,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2024-11-20 19:05:09,020 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 29 [2024-11-20 19:05:09,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:09,021 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2024-11-20 19:05:09,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:05:09,021 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2024-11-20 19:05:09,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-20 19:05:09,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:09,023 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 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 19:05:09,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 19:05:09,023 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:09,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:09,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1581850604, now seen corresponding path program 1 times [2024-11-20 19:05:09,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:09,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994944148] [2024-11-20 19:05:09,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:09,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:09,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 19:05:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:09,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 19:05:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:09,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-20 19:05:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:09,143 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-20 19:05:09,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:09,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994944148] [2024-11-20 19:05:09,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994944148] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:09,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114096302] [2024-11-20 19:05:09,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:09,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:09,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:09,146 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:09,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 19:05:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:09,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 19:05:09,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:09,232 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 19:05:09,232 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 19:05:09,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114096302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:09,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 19:05:09,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2024-11-20 19:05:09,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898235348] [2024-11-20 19:05:09,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:09,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 19:05:09,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:09,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 19:05:09,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-20 19:05:09,235 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 19:05:09,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:09,313 INFO L93 Difference]: Finished difference Result 141 states and 180 transitions. [2024-11-20 19:05:09,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 19:05:09,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-11-20 19:05:09,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:09,314 INFO L225 Difference]: With dead ends: 141 [2024-11-20 19:05:09,315 INFO L226 Difference]: Without dead ends: 76 [2024-11-20 19:05:09,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-20 19:05:09,316 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 31 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:09,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 176 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:05:09,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-20 19:05:09,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2024-11-20 19:05:09,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 59 states have internal predecessors, (64), 10 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (20), 11 states have call predecessors, (20), 9 states have call successors, (20) [2024-11-20 19:05:09,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2024-11-20 19:05:09,325 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 39 [2024-11-20 19:05:09,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:09,325 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2024-11-20 19:05:09,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 19:05:09,326 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2024-11-20 19:05:09,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-20 19:05:09,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:09,326 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 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 19:05:09,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 19:05:09,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-20 19:05:09,527 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:09,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:09,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1773385638, now seen corresponding path program 1 times [2024-11-20 19:05:09,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:09,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663886998] [2024-11-20 19:05:09,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:09,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:09,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:09,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 19:05:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:09,588 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 19:05:09,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:09,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663886998] [2024-11-20 19:05:09,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663886998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:09,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449871078] [2024-11-20 19:05:09,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:09,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:09,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:09,591 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:09,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 19:05:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:09,617 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 19:05:09,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:05:09,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:09,829 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 19:05:09,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449871078] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:09,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:09,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-20 19:05:09,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078165723] [2024-11-20 19:05:09,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:09,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-20 19:05:09,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:09,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-20 19:05:09,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-20 19:05:09,831 INFO L87 Difference]: Start difference. First operand 74 states and 94 transitions. Second operand has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-20 19:05:10,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:10,200 INFO L93 Difference]: Finished difference Result 200 states and 267 transitions. [2024-11-20 19:05:10,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 19:05:10,201 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 30 [2024-11-20 19:05:10,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:10,202 INFO L225 Difference]: With dead ends: 200 [2024-11-20 19:05:10,202 INFO L226 Difference]: Without dead ends: 135 [2024-11-20 19:05:10,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2024-11-20 19:05:10,203 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 117 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:10,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 656 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 19:05:10,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-20 19:05:10,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 121. [2024-11-20 19:05:10,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 97 states have internal predecessors, (107), 16 states have call successors, (16), 6 states have call predecessors, (16), 9 states have return successors, (34), 17 states have call predecessors, (34), 15 states have call successors, (34) [2024-11-20 19:05:10,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 157 transitions. [2024-11-20 19:05:10,216 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 157 transitions. Word has length 30 [2024-11-20 19:05:10,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:10,221 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 157 transitions. [2024-11-20 19:05:10,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-20 19:05:10,221 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 157 transitions. [2024-11-20 19:05:10,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-20 19:05:10,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:10,222 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:10,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-20 19:05:10,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:10,423 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:10,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:10,423 INFO L85 PathProgramCache]: Analyzing trace with hash -463506674, now seen corresponding path program 2 times [2024-11-20 19:05:10,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:10,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481833163] [2024-11-20 19:05:10,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:10,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:10,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 19:05:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:10,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 19:05:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:10,497 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 19:05:10,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:10,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481833163] [2024-11-20 19:05:10,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481833163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:10,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451331480] [2024-11-20 19:05:10,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 19:05:10,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:10,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:10,500 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:10,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 19:05:10,535 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 19:05:10,536 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:05:10,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 19:05:10,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 19:05:10,575 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 19:05:10,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451331480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:10,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 19:05:10,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-20 19:05:10,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26540671] [2024-11-20 19:05:10,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:10,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 19:05:10,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:10,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 19:05:10,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-20 19:05:10,577 INFO L87 Difference]: Start difference. First operand 121 states and 157 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:05:10,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:10,603 INFO L93 Difference]: Finished difference Result 130 states and 169 transitions. [2024-11-20 19:05:10,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 19:05:10,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2024-11-20 19:05:10,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:10,605 INFO L225 Difference]: With dead ends: 130 [2024-11-20 19:05:10,606 INFO L226 Difference]: Without dead ends: 129 [2024-11-20 19:05:10,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-20 19:05:10,606 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:10,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 140 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:05:10,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-20 19:05:10,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125. [2024-11-20 19:05:10,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 96 states have (on average 1.15625) internal successors, (111), 99 states have internal predecessors, (111), 16 states have call successors, (16), 6 states have call predecessors, (16), 9 states have return successors, (34), 19 states have call predecessors, (34), 15 states have call successors, (34) [2024-11-20 19:05:10,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 161 transitions. [2024-11-20 19:05:10,624 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 161 transitions. Word has length 42 [2024-11-20 19:05:10,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:10,625 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 161 transitions. [2024-11-20 19:05:10,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:05:10,625 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 161 transitions. [2024-11-20 19:05:10,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-20 19:05:10,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:10,626 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:10,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 19:05:10,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:10,827 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:10,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:10,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1483804933, now seen corresponding path program 1 times [2024-11-20 19:05:10,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:10,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897163666] [2024-11-20 19:05:10,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:10,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:10,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 19:05:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:10,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 19:05:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:10,886 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 19:05:10,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:10,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897163666] [2024-11-20 19:05:10,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897163666] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:10,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806028742] [2024-11-20 19:05:10,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:10,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:10,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:10,889 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:10,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 19:05:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:10,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 19:05:10,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:11,041 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:05:11,041 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:11,202 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 19:05:11,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806028742] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:11,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:11,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 23 [2024-11-20 19:05:11,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433291167] [2024-11-20 19:05:11,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:11,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 19:05:11,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:11,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 19:05:11,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2024-11-20 19:05:11,204 INFO L87 Difference]: Start difference. First operand 125 states and 161 transitions. Second operand has 23 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 17 states have internal predecessors, (72), 11 states have call successors, (15), 8 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-20 19:05:11,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:11,676 INFO L93 Difference]: Finished difference Result 321 states and 423 transitions. [2024-11-20 19:05:11,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 19:05:11,677 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 17 states have internal predecessors, (72), 11 states have call successors, (15), 8 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 43 [2024-11-20 19:05:11,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:11,678 INFO L225 Difference]: With dead ends: 321 [2024-11-20 19:05:11,679 INFO L226 Difference]: Without dead ends: 211 [2024-11-20 19:05:11,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 74 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2024-11-20 19:05:11,680 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 179 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:11,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1023 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 19:05:11,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-20 19:05:11,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 191. [2024-11-20 19:05:11,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 149 states have (on average 1.1543624161073827) internal successors, (172), 151 states have internal predecessors, (172), 25 states have call successors, (25), 10 states have call predecessors, (25), 13 states have return successors, (48), 29 states have call predecessors, (48), 24 states have call successors, (48) [2024-11-20 19:05:11,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 245 transitions. [2024-11-20 19:05:11,691 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 245 transitions. Word has length 43 [2024-11-20 19:05:11,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:11,691 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 245 transitions. [2024-11-20 19:05:11,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 17 states have internal predecessors, (72), 11 states have call successors, (15), 8 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-20 19:05:11,692 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 245 transitions. [2024-11-20 19:05:11,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 19:05:11,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:11,692 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:11,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 19:05:11,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-20 19:05:11,897 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:11,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:11,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1504919224, now seen corresponding path program 1 times [2024-11-20 19:05:11,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:11,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289266844] [2024-11-20 19:05:11,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:11,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:11,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 19:05:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:11,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 19:05:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:11,964 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-20 19:05:11,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:11,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289266844] [2024-11-20 19:05:11,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289266844] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:11,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189073913] [2024-11-20 19:05:11,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:11,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:11,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:11,967 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:11,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 19:05:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:12,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-20 19:05:12,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:12,213 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 13 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:05:12,213 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:12,417 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 19:05:12,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189073913] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:12,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:12,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 19, 19] total 24 [2024-11-20 19:05:12,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598426203] [2024-11-20 19:05:12,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:12,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-20 19:05:12,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:12,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-20 19:05:12,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2024-11-20 19:05:12,419 INFO L87 Difference]: Start difference. First operand 191 states and 245 transitions. Second operand has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 17 states have internal predecessors, (73), 11 states have call successors, (14), 9 states have call predecessors, (14), 5 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-20 19:05:12,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:12,841 INFO L93 Difference]: Finished difference Result 406 states and 525 transitions. [2024-11-20 19:05:12,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 19:05:12,842 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 17 states have internal predecessors, (73), 11 states have call successors, (14), 9 states have call predecessors, (14), 5 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 60 [2024-11-20 19:05:12,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:12,843 INFO L225 Difference]: With dead ends: 406 [2024-11-20 19:05:12,843 INFO L226 Difference]: Without dead ends: 236 [2024-11-20 19:05:12,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 97 SyntacticMatches, 16 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2024-11-20 19:05:12,845 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 213 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:12,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 964 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 19:05:12,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-20 19:05:12,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 213. [2024-11-20 19:05:12,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 167 states have (on average 1.1497005988023952) internal successors, (192), 168 states have internal predecessors, (192), 28 states have call successors, (28), 11 states have call predecessors, (28), 14 states have return successors, (54), 33 states have call predecessors, (54), 27 states have call successors, (54) [2024-11-20 19:05:12,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 274 transitions. [2024-11-20 19:05:12,861 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 274 transitions. Word has length 60 [2024-11-20 19:05:12,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:12,861 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 274 transitions. [2024-11-20 19:05:12,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 17 states have internal predecessors, (73), 11 states have call successors, (14), 9 states have call predecessors, (14), 5 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-20 19:05:12,862 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 274 transitions. [2024-11-20 19:05:12,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 19:05:12,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:12,863 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:12,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-20 19:05:13,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:13,064 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:13,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:13,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1710163946, now seen corresponding path program 2 times [2024-11-20 19:05:13,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:13,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954863261] [2024-11-20 19:05:13,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:13,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 19:05:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,134 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-20 19:05:13,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:13,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954863261] [2024-11-20 19:05:13,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954863261] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:13,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795561950] [2024-11-20 19:05:13,134 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 19:05:13,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:13,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:13,136 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:13,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 19:05:13,164 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 19:05:13,165 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:05:13,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 19:05:13,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-20 19:05:13,190 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 19:05:13,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795561950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:13,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 19:05:13,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-20 19:05:13,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294055820] [2024-11-20 19:05:13,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:13,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 19:05:13,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:13,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 19:05:13,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-20 19:05:13,191 INFO L87 Difference]: Start difference. First operand 213 states and 274 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:05:13,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:13,211 INFO L93 Difference]: Finished difference Result 226 states and 294 transitions. [2024-11-20 19:05:13,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 19:05:13,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60 [2024-11-20 19:05:13,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:13,212 INFO L225 Difference]: With dead ends: 226 [2024-11-20 19:05:13,212 INFO L226 Difference]: Without dead ends: 225 [2024-11-20 19:05:13,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-20 19:05:13,213 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 4 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:13,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 107 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:05:13,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-20 19:05:13,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 221. [2024-11-20 19:05:13,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 175 states have (on average 1.1428571428571428) internal successors, (200), 172 states have internal predecessors, (200), 28 states have call successors, (28), 11 states have call predecessors, (28), 14 states have return successors, (54), 37 states have call predecessors, (54), 27 states have call successors, (54) [2024-11-20 19:05:13,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 282 transitions. [2024-11-20 19:05:13,222 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 282 transitions. Word has length 60 [2024-11-20 19:05:13,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:13,222 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 282 transitions. [2024-11-20 19:05:13,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:05:13,222 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 282 transitions. [2024-11-20 19:05:13,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 19:05:13,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:13,223 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:13,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-20 19:05:13,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:13,423 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:13,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:13,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1475474675, now seen corresponding path program 1 times [2024-11-20 19:05:13,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:13,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637084701] [2024-11-20 19:05:13,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:13,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 19:05:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,474 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-20 19:05:13,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:13,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637084701] [2024-11-20 19:05:13,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637084701] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:13,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025016898] [2024-11-20 19:05:13,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:13,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:13,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:13,476 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:13,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 19:05:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 19:05:13,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:13,544 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-20 19:05:13,544 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 19:05:13,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025016898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:13,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 19:05:13,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-20 19:05:13,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523862637] [2024-11-20 19:05:13,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:13,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 19:05:13,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:13,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 19:05:13,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-20 19:05:13,546 INFO L87 Difference]: Start difference. First operand 221 states and 282 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:05:13,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:13,570 INFO L93 Difference]: Finished difference Result 237 states and 303 transitions. [2024-11-20 19:05:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 19:05:13,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2024-11-20 19:05:13,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:13,571 INFO L225 Difference]: With dead ends: 237 [2024-11-20 19:05:13,571 INFO L226 Difference]: Without dead ends: 236 [2024-11-20 19:05:13,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-20 19:05:13,572 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:13,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 149 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:05:13,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-20 19:05:13,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 217. [2024-11-20 19:05:13,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 172 states have (on average 1.1453488372093024) internal successors, (197), 169 states have internal predecessors, (197), 27 states have call successors, (27), 11 states have call predecessors, (27), 14 states have return successors, (51), 36 states have call predecessors, (51), 26 states have call successors, (51) [2024-11-20 19:05:13,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 275 transitions. [2024-11-20 19:05:13,583 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 275 transitions. Word has length 61 [2024-11-20 19:05:13,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:13,583 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 275 transitions. [2024-11-20 19:05:13,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:05:13,584 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 275 transitions. [2024-11-20 19:05:13,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-20 19:05:13,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:13,585 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:13,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-20 19:05:13,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-20 19:05:13,786 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:13,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:13,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1055529936, now seen corresponding path program 1 times [2024-11-20 19:05:13,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:13,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035689125] [2024-11-20 19:05:13,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:13,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 19:05:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 19:05:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 19:05:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-20 19:05:13,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:13,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035689125] [2024-11-20 19:05:13,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035689125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:13,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:05:13,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 19:05:13,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39412626] [2024-11-20 19:05:13,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:13,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 19:05:13,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:13,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 19:05:13,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:05:13,863 INFO L87 Difference]: Start difference. First operand 217 states and 275 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 19:05:13,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:13,884 INFO L93 Difference]: Finished difference Result 227 states and 287 transitions. [2024-11-20 19:05:13,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 19:05:13,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 77 [2024-11-20 19:05:13,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:13,886 INFO L225 Difference]: With dead ends: 227 [2024-11-20 19:05:13,886 INFO L226 Difference]: Without dead ends: 226 [2024-11-20 19:05:13,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:05:13,887 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 2 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:13,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 131 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:05:13,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-20 19:05:13,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 211. [2024-11-20 19:05:13,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 168 states have (on average 1.1488095238095237) internal successors, (193), 164 states have internal predecessors, (193), 26 states have call successors, (26), 11 states have call predecessors, (26), 13 states have return successors, (43), 35 states have call predecessors, (43), 25 states have call successors, (43) [2024-11-20 19:05:13,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 262 transitions. [2024-11-20 19:05:13,895 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 262 transitions. Word has length 77 [2024-11-20 19:05:13,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:13,895 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 262 transitions. [2024-11-20 19:05:13,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 19:05:13,895 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 262 transitions. [2024-11-20 19:05:13,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-20 19:05:13,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:13,896 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:13,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 19:05:13,896 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:13,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:13,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1329146264, now seen corresponding path program 1 times [2024-11-20 19:05:13,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:13,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419374654] [2024-11-20 19:05:13,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:13,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 19:05:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 19:05:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:13,964 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-20 19:05:13,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:13,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419374654] [2024-11-20 19:05:13,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419374654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:13,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214266028] [2024-11-20 19:05:13,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:13,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:13,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:13,967 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:13,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-20 19:05:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:14,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-20 19:05:14,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:14,174 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 58 proven. 43 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 19:05:14,175 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:14,372 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 58 proven. 43 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 19:05:14,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214266028] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:14,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:14,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 19, 19] total 23 [2024-11-20 19:05:14,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13011212] [2024-11-20 19:05:14,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:14,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 19:05:14,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:14,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 19:05:14,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2024-11-20 19:05:14,373 INFO L87 Difference]: Start difference. First operand 211 states and 262 transitions. Second operand has 23 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 16 states have internal predecessors, (84), 11 states have call successors, (16), 8 states have call predecessors, (16), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-20 19:05:14,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:14,852 INFO L93 Difference]: Finished difference Result 583 states and 775 transitions. [2024-11-20 19:05:14,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-20 19:05:14,853 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 16 states have internal predecessors, (84), 11 states have call successors, (16), 8 states have call predecessors, (16), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 79 [2024-11-20 19:05:14,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:14,855 INFO L225 Difference]: With dead ends: 583 [2024-11-20 19:05:14,855 INFO L226 Difference]: Without dead ends: 393 [2024-11-20 19:05:14,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 138 SyntacticMatches, 16 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=1376, Unknown=0, NotChecked=0, Total=1640 [2024-11-20 19:05:14,858 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 269 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:14,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 351 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 19:05:14,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-20 19:05:14,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 362. [2024-11-20 19:05:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 290 states have (on average 1.1413793103448275) internal successors, (331), 281 states have internal predecessors, (331), 45 states have call successors, (45), 18 states have call predecessors, (45), 23 states have return successors, (77), 62 states have call predecessors, (77), 44 states have call successors, (77) [2024-11-20 19:05:14,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 453 transitions. [2024-11-20 19:05:14,875 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 453 transitions. Word has length 79 [2024-11-20 19:05:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:14,875 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 453 transitions. [2024-11-20 19:05:14,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 16 states have internal predecessors, (84), 11 states have call successors, (16), 8 states have call predecessors, (16), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-20 19:05:14,876 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 453 transitions. [2024-11-20 19:05:14,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-20 19:05:14,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:14,877 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 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 19:05:14,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-20 19:05:15,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-20 19:05:15,081 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:15,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:15,081 INFO L85 PathProgramCache]: Analyzing trace with hash -932529083, now seen corresponding path program 1 times [2024-11-20 19:05:15,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:15,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774197573] [2024-11-20 19:05:15,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:15,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 19:05:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 19:05:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,144 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-20 19:05:15,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:15,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774197573] [2024-11-20 19:05:15,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774197573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:15,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:05:15,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 19:05:15,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134236271] [2024-11-20 19:05:15,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:15,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 19:05:15,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:15,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 19:05:15,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:05:15,146 INFO L87 Difference]: Start difference. First operand 362 states and 453 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 19:05:15,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:15,177 INFO L93 Difference]: Finished difference Result 390 states and 492 transitions. [2024-11-20 19:05:15,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 19:05:15,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 74 [2024-11-20 19:05:15,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:15,180 INFO L225 Difference]: With dead ends: 390 [2024-11-20 19:05:15,180 INFO L226 Difference]: Without dead ends: 389 [2024-11-20 19:05:15,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:05:15,182 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:15,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 107 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:05:15,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-20 19:05:15,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 375. [2024-11-20 19:05:15,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 301 states have (on average 1.1362126245847175) internal successors, (342), 291 states have internal predecessors, (342), 45 states have call successors, (45), 18 states have call predecessors, (45), 25 states have return successors, (86), 65 states have call predecessors, (86), 44 states have call successors, (86) [2024-11-20 19:05:15,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 473 transitions. [2024-11-20 19:05:15,204 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 473 transitions. Word has length 74 [2024-11-20 19:05:15,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:15,204 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 473 transitions. [2024-11-20 19:05:15,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 19:05:15,204 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 473 transitions. [2024-11-20 19:05:15,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-20 19:05:15,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:15,206 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 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 19:05:15,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 19:05:15,206 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:15,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:15,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1524107692, now seen corresponding path program 1 times [2024-11-20 19:05:15,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:15,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021959299] [2024-11-20 19:05:15,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:15,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 19:05:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 19:05:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,329 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-20 19:05:15,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:15,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021959299] [2024-11-20 19:05:15,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021959299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:15,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:05:15,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 19:05:15,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209832012] [2024-11-20 19:05:15,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:15,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 19:05:15,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:15,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 19:05:15,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-20 19:05:15,332 INFO L87 Difference]: Start difference. First operand 375 states and 473 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 19:05:15,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:15,405 INFO L93 Difference]: Finished difference Result 477 states and 622 transitions. [2024-11-20 19:05:15,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 19:05:15,406 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 75 [2024-11-20 19:05:15,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:15,408 INFO L225 Difference]: With dead ends: 477 [2024-11-20 19:05:15,408 INFO L226 Difference]: Without dead ends: 476 [2024-11-20 19:05:15,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 19:05:15,409 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 6 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:15,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 255 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:05:15,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-20 19:05:15,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 401. [2024-11-20 19:05:15,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 320 states have (on average 1.128125) internal successors, (361), 312 states have internal predecessors, (361), 48 states have call successors, (48), 18 states have call predecessors, (48), 29 states have return successors, (111), 70 states have call predecessors, (111), 47 states have call successors, (111) [2024-11-20 19:05:15,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 520 transitions. [2024-11-20 19:05:15,426 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 520 transitions. Word has length 75 [2024-11-20 19:05:15,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:15,427 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 520 transitions. [2024-11-20 19:05:15,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 19:05:15,427 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 520 transitions. [2024-11-20 19:05:15,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-20 19:05:15,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:15,428 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:15,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 19:05:15,428 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:15,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:15,428 INFO L85 PathProgramCache]: Analyzing trace with hash -121328009, now seen corresponding path program 1 times [2024-11-20 19:05:15,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:15,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607270309] [2024-11-20 19:05:15,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:15,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 19:05:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-20 19:05:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 19:05:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,478 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-20 19:05:15,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:15,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607270309] [2024-11-20 19:05:15,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607270309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:15,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730321086] [2024-11-20 19:05:15,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:15,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:15,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:15,480 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:15,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-20 19:05:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:15,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-20 19:05:15,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:15,715 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 75 proven. 48 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 19:05:15,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:15,963 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 75 proven. 48 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 19:05:15,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730321086] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:15,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:15,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 21, 21] total 42 [2024-11-20 19:05:15,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433743652] [2024-11-20 19:05:15,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:15,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-20 19:05:15,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:15,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-20 19:05:15,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1525, Unknown=0, NotChecked=0, Total=1722 [2024-11-20 19:05:15,965 INFO L87 Difference]: Start difference. First operand 401 states and 520 transitions. Second operand has 42 states, 40 states have (on average 3.325) internal successors, (133), 26 states have internal predecessors, (133), 21 states have call successors, (27), 17 states have call predecessors, (27), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-20 19:05:16,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:16,763 INFO L93 Difference]: Finished difference Result 824 states and 1112 transitions. [2024-11-20 19:05:16,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-20 19:05:16,764 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 40 states have (on average 3.325) internal successors, (133), 26 states have internal predecessors, (133), 21 states have call successors, (27), 17 states have call predecessors, (27), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 84 [2024-11-20 19:05:16,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:16,766 INFO L225 Difference]: With dead ends: 824 [2024-11-20 19:05:16,766 INFO L226 Difference]: Without dead ends: 477 [2024-11-20 19:05:16,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 151 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1342 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=712, Invalid=3980, Unknown=0, NotChecked=0, Total=4692 [2024-11-20 19:05:16,769 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 552 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:16,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 580 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 19:05:16,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-20 19:05:16,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 426. [2024-11-20 19:05:16,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 339 states have (on average 1.12094395280236) internal successors, (380), 333 states have internal predecessors, (380), 52 states have call successors, (52), 20 states have call predecessors, (52), 31 states have return successors, (110), 72 states have call predecessors, (110), 51 states have call successors, (110) [2024-11-20 19:05:16,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 542 transitions. [2024-11-20 19:05:16,786 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 542 transitions. Word has length 84 [2024-11-20 19:05:16,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:16,786 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 542 transitions. [2024-11-20 19:05:16,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 40 states have (on average 3.325) internal successors, (133), 26 states have internal predecessors, (133), 21 states have call successors, (27), 17 states have call predecessors, (27), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-20 19:05:16,786 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 542 transitions. [2024-11-20 19:05:16,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-20 19:05:16,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:16,788 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 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 19:05:16,793 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-20 19:05:16,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:16,992 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:16,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:16,992 INFO L85 PathProgramCache]: Analyzing trace with hash 679118242, now seen corresponding path program 1 times [2024-11-20 19:05:16,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:16,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140622019] [2024-11-20 19:05:16,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:16,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 19:05:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 19:05:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 19:05:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-20 19:05:17,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:17,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140622019] [2024-11-20 19:05:17,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140622019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:05:17,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:05:17,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 19:05:17,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368316110] [2024-11-20 19:05:17,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:05:17,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 19:05:17,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:17,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 19:05:17,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:05:17,051 INFO L87 Difference]: Start difference. First operand 426 states and 542 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 19:05:17,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:17,075 INFO L93 Difference]: Finished difference Result 442 states and 561 transitions. [2024-11-20 19:05:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 19:05:17,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 79 [2024-11-20 19:05:17,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:17,077 INFO L225 Difference]: With dead ends: 442 [2024-11-20 19:05:17,077 INFO L226 Difference]: Without dead ends: 441 [2024-11-20 19:05:17,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:05:17,078 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:17,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 111 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:05:17,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-20 19:05:17,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 421. [2024-11-20 19:05:17,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 334 states have (on average 1.1167664670658684) internal successors, (373), 330 states have internal predecessors, (373), 51 states have call successors, (51), 20 states have call predecessors, (51), 32 states have return successors, (111), 70 states have call predecessors, (111), 50 states have call successors, (111) [2024-11-20 19:05:17,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 535 transitions. [2024-11-20 19:05:17,094 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 535 transitions. Word has length 79 [2024-11-20 19:05:17,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:17,094 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 535 transitions. [2024-11-20 19:05:17,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-20 19:05:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 535 transitions. [2024-11-20 19:05:17,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-20 19:05:17,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:17,096 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:17,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 19:05:17,096 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:17,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:17,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1548070850, now seen corresponding path program 1 times [2024-11-20 19:05:17,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:17,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922844153] [2024-11-20 19:05:17,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:17,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 19:05:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 19:05:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 19:05:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 19:05:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,330 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 56 proven. 93 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 19:05:17,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:17,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922844153] [2024-11-20 19:05:17,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922844153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:17,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688068896] [2024-11-20 19:05:17,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:17,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:17,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:17,332 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:17,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-20 19:05:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:17,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-20 19:05:17,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:17,461 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 63 proven. 96 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-20 19:05:17,461 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:17,696 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 63 proven. 96 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-20 19:05:17,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688068896] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:17,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:17,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 24 [2024-11-20 19:05:17,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274381600] [2024-11-20 19:05:17,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:17,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-20 19:05:17,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:17,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-20 19:05:17,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2024-11-20 19:05:17,698 INFO L87 Difference]: Start difference. First operand 421 states and 535 transitions. Second operand has 24 states, 23 states have (on average 4.478260869565218) internal successors, (103), 18 states have internal predecessors, (103), 13 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-20 19:05:18,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:18,080 INFO L93 Difference]: Finished difference Result 781 states and 991 transitions. [2024-11-20 19:05:18,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-20 19:05:18,081 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.478260869565218) internal successors, (103), 18 states have internal predecessors, (103), 13 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) Word has length 111 [2024-11-20 19:05:18,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:18,083 INFO L225 Difference]: With dead ends: 781 [2024-11-20 19:05:18,083 INFO L226 Difference]: Without dead ends: 436 [2024-11-20 19:05:18,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 223 SyntacticMatches, 15 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=281, Invalid=1441, Unknown=0, NotChecked=0, Total=1722 [2024-11-20 19:05:18,085 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 262 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:18,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 358 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 19:05:18,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-20 19:05:18,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 423. [2024-11-20 19:05:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 335 states have (on average 1.1164179104477612) internal successors, (374), 332 states have internal predecessors, (374), 51 states have call successors, (51), 21 states have call predecessors, (51), 33 states have return successors, (109), 69 states have call predecessors, (109), 50 states have call successors, (109) [2024-11-20 19:05:18,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 534 transitions. [2024-11-20 19:05:18,103 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 534 transitions. Word has length 111 [2024-11-20 19:05:18,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:18,104 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 534 transitions. [2024-11-20 19:05:18,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.478260869565218) internal successors, (103), 18 states have internal predecessors, (103), 13 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-20 19:05:18,104 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 534 transitions. [2024-11-20 19:05:18,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-20 19:05:18,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:18,105 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:18,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-20 19:05:18,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-20 19:05:18,310 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:18,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:18,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1108261630, now seen corresponding path program 1 times [2024-11-20 19:05:18,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:18,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876564287] [2024-11-20 19:05:18,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:18,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:18,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 19:05:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:18,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:18,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:18,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:18,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:18,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-20 19:05:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:18,530 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 11 proven. 80 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-20 19:05:18,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:18,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876564287] [2024-11-20 19:05:18,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876564287] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:18,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678684173] [2024-11-20 19:05:18,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:18,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:18,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:18,532 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:18,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-20 19:05:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:18,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 19:05:18,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:18,642 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 34 proven. 73 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 19:05:18,642 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:18,823 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 14 proven. 83 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-20 19:05:18,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678684173] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:18,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:18,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 24 [2024-11-20 19:05:18,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148785635] [2024-11-20 19:05:18,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:18,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-20 19:05:18,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:18,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-20 19:05:18,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-11-20 19:05:18,825 INFO L87 Difference]: Start difference. First operand 423 states and 534 transitions. Second operand has 24 states, 23 states have (on average 4.391304347826087) internal successors, (101), 19 states have internal predecessors, (101), 12 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-20 19:05:19,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:19,151 INFO L93 Difference]: Finished difference Result 821 states and 1055 transitions. [2024-11-20 19:05:19,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-20 19:05:19,152 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.391304347826087) internal successors, (101), 19 states have internal predecessors, (101), 12 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14) Word has length 88 [2024-11-20 19:05:19,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:19,154 INFO L225 Difference]: With dead ends: 821 [2024-11-20 19:05:19,154 INFO L226 Difference]: Without dead ends: 456 [2024-11-20 19:05:19,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 178 SyntacticMatches, 13 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2024-11-20 19:05:19,156 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 165 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:19,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 702 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 19:05:19,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-20 19:05:19,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 419. [2024-11-20 19:05:19,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 332 states have (on average 1.1144578313253013) internal successors, (370), 328 states have internal predecessors, (370), 51 states have call successors, (51), 21 states have call predecessors, (51), 32 states have return successors, (100), 69 states have call predecessors, (100), 49 states have call successors, (100) [2024-11-20 19:05:19,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 521 transitions. [2024-11-20 19:05:19,173 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 521 transitions. Word has length 88 [2024-11-20 19:05:19,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:19,173 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 521 transitions. [2024-11-20 19:05:19,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.391304347826087) internal successors, (101), 19 states have internal predecessors, (101), 12 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-20 19:05:19,173 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 521 transitions. [2024-11-20 19:05:19,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-20 19:05:19,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:19,174 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:19,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-20 19:05:19,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-20 19:05:19,375 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:19,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:19,375 INFO L85 PathProgramCache]: Analyzing trace with hash 870027817, now seen corresponding path program 1 times [2024-11-20 19:05:19,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:19,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517890578] [2024-11-20 19:05:19,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:19,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:19,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 19:05:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:19,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:19,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:19,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:19,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:19,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 19:05:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:19,515 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-20 19:05:19,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:19,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517890578] [2024-11-20 19:05:19,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517890578] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:19,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16616675] [2024-11-20 19:05:19,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:19,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:19,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:19,517 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:19,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-20 19:05:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:19,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-20 19:05:19,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:19,603 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-20 19:05:19,604 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:19,741 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-20 19:05:19,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16616675] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:19,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:19,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 17 [2024-11-20 19:05:19,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573282649] [2024-11-20 19:05:19,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:19,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 19:05:19,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:19,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 19:05:19,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-20 19:05:19,744 INFO L87 Difference]: Start difference. First operand 419 states and 521 transitions. Second operand has 17 states, 16 states have (on average 4.375) internal successors, (70), 12 states have internal predecessors, (70), 7 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 19:05:19,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:19,944 INFO L93 Difference]: Finished difference Result 757 states and 944 transitions. [2024-11-20 19:05:19,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 19:05:19,944 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.375) internal successors, (70), 12 states have internal predecessors, (70), 7 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 89 [2024-11-20 19:05:19,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:19,949 INFO L225 Difference]: With dead ends: 757 [2024-11-20 19:05:19,950 INFO L226 Difference]: Without dead ends: 423 [2024-11-20 19:05:19,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 180 SyntacticMatches, 12 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-11-20 19:05:19,951 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 173 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:19,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 501 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:05:19,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-20 19:05:19,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 413. [2024-11-20 19:05:19,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 326 states have (on average 1.116564417177914) internal successors, (364), 325 states have internal predecessors, (364), 51 states have call successors, (51), 21 states have call predecessors, (51), 32 states have return successors, (97), 66 states have call predecessors, (97), 49 states have call successors, (97) [2024-11-20 19:05:19,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 512 transitions. [2024-11-20 19:05:19,966 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 512 transitions. Word has length 89 [2024-11-20 19:05:19,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:19,966 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 512 transitions. [2024-11-20 19:05:19,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.375) internal successors, (70), 12 states have internal predecessors, (70), 7 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 19:05:19,967 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 512 transitions. [2024-11-20 19:05:19,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-20 19:05:19,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:19,967 INFO L215 NwaCegarLoop]: trace histogram [7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:19,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-20 19:05:20,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-20 19:05:20,168 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:20,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:20,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1952719999, now seen corresponding path program 1 times [2024-11-20 19:05:20,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:20,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422516505] [2024-11-20 19:05:20,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:20,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:20,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 19:05:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:20,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:20,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:20,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 19:05:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:20,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 19:05:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:20,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-20 19:05:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:20,366 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 41 proven. 73 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-20 19:05:20,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:20,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422516505] [2024-11-20 19:05:20,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422516505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:20,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266980570] [2024-11-20 19:05:20,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:20,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:20,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:20,369 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:20,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-20 19:05:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:20,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-20 19:05:20,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-20 19:05:20,546 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:20,847 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-20 19:05:20,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266980570] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:20,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:20,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9, 11] total 34 [2024-11-20 19:05:20,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803074224] [2024-11-20 19:05:20,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:20,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-20 19:05:20,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:20,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-20 19:05:20,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1022, Unknown=0, NotChecked=0, Total=1122 [2024-11-20 19:05:20,849 INFO L87 Difference]: Start difference. First operand 413 states and 512 transitions. Second operand has 34 states, 33 states have (on average 3.303030303030303) internal successors, (109), 28 states have internal predecessors, (109), 14 states have call successors, (17), 7 states have call predecessors, (17), 8 states have return successors, (15), 11 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-20 19:05:22,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:22,001 INFO L93 Difference]: Finished difference Result 889 states and 1198 transitions. [2024-11-20 19:05:22,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-20 19:05:22,002 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.303030303030303) internal successors, (109), 28 states have internal predecessors, (109), 14 states have call successors, (17), 7 states have call predecessors, (17), 8 states have return successors, (15), 11 states have call predecessors, (15), 8 states have call successors, (15) Word has length 93 [2024-11-20 19:05:22,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:22,004 INFO L225 Difference]: With dead ends: 889 [2024-11-20 19:05:22,004 INFO L226 Difference]: Without dead ends: 522 [2024-11-20 19:05:22,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 199 SyntacticMatches, 3 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1859 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=866, Invalid=6274, Unknown=0, NotChecked=0, Total=7140 [2024-11-20 19:05:22,008 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 338 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:22,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 522 Invalid, 2060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 19:05:22,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-20 19:05:22,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 426. [2024-11-20 19:05:22,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 337 states have (on average 1.1216617210682494) internal successors, (378), 335 states have internal predecessors, (378), 49 states have call successors, (49), 21 states have call predecessors, (49), 36 states have return successors, (103), 69 states have call predecessors, (103), 48 states have call successors, (103) [2024-11-20 19:05:22,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 530 transitions. [2024-11-20 19:05:22,029 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 530 transitions. Word has length 93 [2024-11-20 19:05:22,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:22,029 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 530 transitions. [2024-11-20 19:05:22,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.303030303030303) internal successors, (109), 28 states have internal predecessors, (109), 14 states have call successors, (17), 7 states have call predecessors, (17), 8 states have return successors, (15), 11 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-20 19:05:22,030 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 530 transitions. [2024-11-20 19:05:22,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-20 19:05:22,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:22,031 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:22,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-20 19:05:22,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:22,232 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:22,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:22,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1606036922, now seen corresponding path program 1 times [2024-11-20 19:05:22,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:22,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496197226] [2024-11-20 19:05:22,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:22,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:22,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 19:05:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:22,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:22,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:22,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:22,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:22,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 19:05:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:22,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:22,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:22,472 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 19:05:22,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:22,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496197226] [2024-11-20 19:05:22,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496197226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:22,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813673841] [2024-11-20 19:05:22,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:22,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:22,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:22,475 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:22,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-20 19:05:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:22,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 19:05:22,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:22,644 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-20 19:05:22,644 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:22,969 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-20 19:05:22,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813673841] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:22,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:22,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 15] total 28 [2024-11-20 19:05:22,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4916905] [2024-11-20 19:05:22,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:22,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-20 19:05:22,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:22,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-20 19:05:22,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=699, Unknown=0, NotChecked=0, Total=812 [2024-11-20 19:05:22,970 INFO L87 Difference]: Start difference. First operand 426 states and 530 transitions. Second operand has 29 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 29 states have internal predecessors, (79), 7 states have call successors, (9), 1 states have call predecessors, (9), 10 states have return successors, (17), 16 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-20 19:05:23,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:23,190 INFO L93 Difference]: Finished difference Result 636 states and 865 transitions. [2024-11-20 19:05:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-20 19:05:23,190 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 29 states have internal predecessors, (79), 7 states have call successors, (9), 1 states have call predecessors, (9), 10 states have return successors, (17), 16 states have call predecessors, (17), 7 states have call successors, (17) Word has length 107 [2024-11-20 19:05:23,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:23,193 INFO L225 Difference]: With dead ends: 636 [2024-11-20 19:05:23,193 INFO L226 Difference]: Without dead ends: 634 [2024-11-20 19:05:23,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 213 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=230, Invalid=1330, Unknown=0, NotChecked=0, Total=1560 [2024-11-20 19:05:23,194 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 30 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:23,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 557 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:05:23,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-11-20 19:05:23,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 526. [2024-11-20 19:05:23,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 416 states have (on average 1.0913461538461537) internal successors, (454), 414 states have internal predecessors, (454), 57 states have call successors, (57), 21 states have call predecessors, (57), 49 states have return successors, (160), 90 states have call predecessors, (160), 56 states have call successors, (160) [2024-11-20 19:05:23,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 671 transitions. [2024-11-20 19:05:23,219 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 671 transitions. Word has length 107 [2024-11-20 19:05:23,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:23,220 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 671 transitions. [2024-11-20 19:05:23,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 29 states have internal predecessors, (79), 7 states have call successors, (9), 1 states have call predecessors, (9), 10 states have return successors, (17), 16 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-20 19:05:23,220 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 671 transitions. [2024-11-20 19:05:23,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-20 19:05:23,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:23,222 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:23,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-20 19:05:23,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-20 19:05:23,423 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:23,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:23,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1752462871, now seen corresponding path program 1 times [2024-11-20 19:05:23,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:23,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549964239] [2024-11-20 19:05:23,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:23,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:23,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 19:05:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:23,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:23,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:23,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:23,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:23,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 19:05:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:23,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:23,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:23,606 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 19:05:23,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:23,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549964239] [2024-11-20 19:05:23,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549964239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:23,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549257207] [2024-11-20 19:05:23,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:23,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:23,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:23,608 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:23,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-20 19:05:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:23,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-20 19:05:23,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:23,734 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 19:05:23,734 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:24,063 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-20 19:05:24,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549257207] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:24,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:24,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 16] total 26 [2024-11-20 19:05:24,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140902287] [2024-11-20 19:05:24,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:24,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-20 19:05:24,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:24,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-20 19:05:24,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2024-11-20 19:05:24,065 INFO L87 Difference]: Start difference. First operand 526 states and 671 transitions. Second operand has 27 states, 26 states have (on average 2.923076923076923) internal successors, (76), 27 states have internal predecessors, (76), 7 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (17), 17 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-20 19:05:24,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:24,250 INFO L93 Difference]: Finished difference Result 817 states and 1162 transitions. [2024-11-20 19:05:24,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-20 19:05:24,250 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.923076923076923) internal successors, (76), 27 states have internal predecessors, (76), 7 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (17), 17 states have call predecessors, (17), 7 states have call successors, (17) Word has length 108 [2024-11-20 19:05:24,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:24,253 INFO L225 Difference]: With dead ends: 817 [2024-11-20 19:05:24,253 INFO L226 Difference]: Without dead ends: 815 [2024-11-20 19:05:24,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 215 SyntacticMatches, 7 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=844, Unknown=0, NotChecked=0, Total=992 [2024-11-20 19:05:24,254 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 14 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:24,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 510 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:05:24,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2024-11-20 19:05:24,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 646. [2024-11-20 19:05:24,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 510 states have (on average 1.0705882352941176) internal successors, (546), 508 states have internal predecessors, (546), 67 states have call successors, (67), 21 states have call predecessors, (67), 65 states have return successors, (294), 116 states have call predecessors, (294), 66 states have call successors, (294) [2024-11-20 19:05:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 907 transitions. [2024-11-20 19:05:24,282 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 907 transitions. Word has length 108 [2024-11-20 19:05:24,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:24,282 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 907 transitions. [2024-11-20 19:05:24,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.923076923076923) internal successors, (76), 27 states have internal predecessors, (76), 7 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (17), 17 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-20 19:05:24,282 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 907 transitions. [2024-11-20 19:05:24,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-20 19:05:24,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:24,283 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-20 19:05:24,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-20 19:05:24,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-20 19:05:24,484 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:24,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:24,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1104785409, now seen corresponding path program 1 times [2024-11-20 19:05:24,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:24,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683877111] [2024-11-20 19:05:24,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:24,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:24,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 19:05:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:24,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:24,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:24,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:24,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:24,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:24,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:24,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:24,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:24,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 19:05:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:24,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:24,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:24,648 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-20 19:05:24,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:24,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683877111] [2024-11-20 19:05:24,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683877111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:24,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303563242] [2024-11-20 19:05:24,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:24,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:24,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:24,650 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:24,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-20 19:05:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:24,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-20 19:05:24,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:24,760 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-20 19:05:24,760 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-20 19:05:24,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303563242] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:24,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:24,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 20 [2024-11-20 19:05:24,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605055026] [2024-11-20 19:05:24,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:24,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 19:05:24,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:24,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 19:05:24,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2024-11-20 19:05:24,974 INFO L87 Difference]: Start difference. First operand 646 states and 907 transitions. Second operand has 20 states, 19 states have (on average 4.7894736842105265) internal successors, (91), 16 states have internal predecessors, (91), 11 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (11), 5 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-20 19:05:25,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:25,279 INFO L93 Difference]: Finished difference Result 1275 states and 1822 transitions. [2024-11-20 19:05:25,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 19:05:25,279 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.7894736842105265) internal successors, (91), 16 states have internal predecessors, (91), 11 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (11), 5 states have call predecessors, (11), 7 states have call successors, (11) Word has length 142 [2024-11-20 19:05:25,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:25,283 INFO L225 Difference]: With dead ends: 1275 [2024-11-20 19:05:25,283 INFO L226 Difference]: Without dead ends: 666 [2024-11-20 19:05:25,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 295 SyntacticMatches, 11 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2024-11-20 19:05:25,286 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 147 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:25,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 525 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 19:05:25,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-11-20 19:05:25,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 658. [2024-11-20 19:05:25,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 520 states have (on average 1.0673076923076923) internal successors, (555), 517 states have internal predecessors, (555), 68 states have call successors, (68), 21 states have call predecessors, (68), 66 states have return successors, (299), 119 states have call predecessors, (299), 67 states have call successors, (299) [2024-11-20 19:05:25,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 922 transitions. [2024-11-20 19:05:25,313 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 922 transitions. Word has length 142 [2024-11-20 19:05:25,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:25,314 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 922 transitions. [2024-11-20 19:05:25,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.7894736842105265) internal successors, (91), 16 states have internal predecessors, (91), 11 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (11), 5 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-20 19:05:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 922 transitions. [2024-11-20 19:05:25,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-20 19:05:25,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:25,315 INFO L215 NwaCegarLoop]: trace histogram [10, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2024-11-20 19:05:25,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-20 19:05:25,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-20 19:05:25,516 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:25,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:25,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1146617985, now seen corresponding path program 2 times [2024-11-20 19:05:25,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:25,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029118862] [2024-11-20 19:05:25,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:25,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 19:05:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 19:05:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:25,894 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-20 19:05:25,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:25,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029118862] [2024-11-20 19:05:25,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029118862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:25,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330635662] [2024-11-20 19:05:25,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 19:05:25,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:25,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:25,897 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:25,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-20 19:05:25,954 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 19:05:25,954 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:05:25,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-20 19:05:25,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:26,117 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-20 19:05:26,118 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:27,029 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 74 proven. 54 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-20 19:05:27,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330635662] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:27,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:27,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 22] total 36 [2024-11-20 19:05:27,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560136735] [2024-11-20 19:05:27,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:27,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-20 19:05:27,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:27,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-20 19:05:27,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1152, Unknown=0, NotChecked=0, Total=1332 [2024-11-20 19:05:27,031 INFO L87 Difference]: Start difference. First operand 658 states and 922 transitions. Second operand has 37 states, 36 states have (on average 2.7777777777777777) internal successors, (100), 37 states have internal predecessors, (100), 9 states have call successors, (11), 1 states have call predecessors, (11), 11 states have return successors, (24), 24 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-20 19:05:27,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:27,297 INFO L93 Difference]: Finished difference Result 895 states and 1296 transitions. [2024-11-20 19:05:27,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-20 19:05:27,297 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.7777777777777777) internal successors, (100), 37 states have internal predecessors, (100), 9 states have call successors, (11), 1 states have call predecessors, (11), 11 states have return successors, (24), 24 states have call predecessors, (24), 9 states have call successors, (24) Word has length 161 [2024-11-20 19:05:27,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:27,301 INFO L225 Difference]: With dead ends: 895 [2024-11-20 19:05:27,301 INFO L226 Difference]: Without dead ends: 893 [2024-11-20 19:05:27,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 326 SyntacticMatches, 16 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1128 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=306, Invalid=1950, Unknown=0, NotChecked=0, Total=2256 [2024-11-20 19:05:27,302 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 18 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:27,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 516 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 19:05:27,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2024-11-20 19:05:27,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 647. [2024-11-20 19:05:27,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 509 states have (on average 1.0491159135559922) internal successors, (534), 510 states have internal predecessors, (534), 67 states have call successors, (67), 21 states have call predecessors, (67), 67 states have return successors, (287), 115 states have call predecessors, (287), 66 states have call successors, (287) [2024-11-20 19:05:27,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 888 transitions. [2024-11-20 19:05:27,345 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 888 transitions. Word has length 161 [2024-11-20 19:05:27,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:27,345 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 888 transitions. [2024-11-20 19:05:27,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.7777777777777777) internal successors, (100), 37 states have internal predecessors, (100), 9 states have call successors, (11), 1 states have call predecessors, (11), 11 states have return successors, (24), 24 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-20 19:05:27,345 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 888 transitions. [2024-11-20 19:05:27,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-20 19:05:27,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:27,346 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 10, 10, 10, 9, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 1, 1, 1, 1] [2024-11-20 19:05:27,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-20 19:05:27,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-20 19:05:27,551 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:27,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:27,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1601990729, now seen corresponding path program 2 times [2024-11-20 19:05:27,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:27,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262346547] [2024-11-20 19:05:27,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:27,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 19:05:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-20 19:05:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 19:05:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:27,775 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 178 proven. 145 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-11-20 19:05:27,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:27,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262346547] [2024-11-20 19:05:27,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262346547] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:27,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858559446] [2024-11-20 19:05:27,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 19:05:27,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:27,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:27,778 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:27,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-20 19:05:27,854 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 19:05:27,854 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:05:27,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-20 19:05:27,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:27,930 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 381 proven. 126 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-20 19:05:27,930 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:28,272 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 109 proven. 210 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-20 19:05:28,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858559446] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:28,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:28,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 15] total 23 [2024-11-20 19:05:28,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543827299] [2024-11-20 19:05:28,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:28,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 19:05:28,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:28,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 19:05:28,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2024-11-20 19:05:28,274 INFO L87 Difference]: Start difference. First operand 647 states and 888 transitions. Second operand has 23 states, 22 states have (on average 6.409090909090909) internal successors, (141), 20 states have internal predecessors, (141), 14 states have call successors, (26), 5 states have call predecessors, (26), 7 states have return successors, (24), 12 states have call predecessors, (24), 11 states have call successors, (24) [2024-11-20 19:05:28,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:28,509 INFO L93 Difference]: Finished difference Result 1144 states and 1619 transitions. [2024-11-20 19:05:28,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 19:05:28,510 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.409090909090909) internal successors, (141), 20 states have internal predecessors, (141), 14 states have call successors, (26), 5 states have call predecessors, (26), 7 states have return successors, (24), 12 states have call predecessors, (24), 11 states have call successors, (24) Word has length 214 [2024-11-20 19:05:28,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:28,512 INFO L225 Difference]: With dead ends: 1144 [2024-11-20 19:05:28,512 INFO L226 Difference]: Without dead ends: 565 [2024-11-20 19:05:28,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 453 SyntacticMatches, 10 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2024-11-20 19:05:28,516 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 131 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:28,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 363 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 19:05:28,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-20 19:05:28,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 504. [2024-11-20 19:05:28,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 395 states have (on average 1.0455696202531646) internal successors, (413), 399 states have internal predecessors, (413), 55 states have call successors, (55), 22 states have call predecessors, (55), 50 states have return successors, (136), 82 states have call predecessors, (136), 54 states have call successors, (136) [2024-11-20 19:05:28,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 604 transitions. [2024-11-20 19:05:28,537 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 604 transitions. Word has length 214 [2024-11-20 19:05:28,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:28,538 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 604 transitions. [2024-11-20 19:05:28,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.409090909090909) internal successors, (141), 20 states have internal predecessors, (141), 14 states have call successors, (26), 5 states have call predecessors, (26), 7 states have return successors, (24), 12 states have call predecessors, (24), 11 states have call successors, (24) [2024-11-20 19:05:28,538 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 604 transitions. [2024-11-20 19:05:28,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-20 19:05:28,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:28,539 INFO L215 NwaCegarLoop]: trace histogram [14, 12, 11, 11, 10, 10, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 1, 1, 1, 1, 1] [2024-11-20 19:05:28,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-20 19:05:28,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:28,740 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:28,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:28,740 INFO L85 PathProgramCache]: Analyzing trace with hash 447095822, now seen corresponding path program 3 times [2024-11-20 19:05:28,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:28,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120067710] [2024-11-20 19:05:28,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:28,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 19:05:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-20 19:05:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:28,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:29,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:29,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:29,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:29,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:29,044 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 246 proven. 160 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2024-11-20 19:05:29,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:29,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120067710] [2024-11-20 19:05:29,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120067710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:29,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142468825] [2024-11-20 19:05:29,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 19:05:29,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:29,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:29,060 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:29,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-20 19:05:29,129 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-20 19:05:29,129 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:05:29,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 19:05:29,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:29,199 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 219 proven. 7 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2024-11-20 19:05:29,199 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:29,487 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 219 proven. 7 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2024-11-20 19:05:29,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142468825] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:29,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:29,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 25 [2024-11-20 19:05:29,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221175174] [2024-11-20 19:05:29,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:29,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-20 19:05:29,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:29,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-20 19:05:29,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2024-11-20 19:05:29,489 INFO L87 Difference]: Start difference. First operand 504 states and 604 transitions. Second operand has 25 states, 24 states have (on average 4.708333333333333) internal successors, (113), 22 states have internal predecessors, (113), 11 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 8 states have call successors, (17) [2024-11-20 19:05:29,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:29,708 INFO L93 Difference]: Finished difference Result 933 states and 1151 transitions. [2024-11-20 19:05:29,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 19:05:29,708 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.708333333333333) internal successors, (113), 22 states have internal predecessors, (113), 11 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 8 states have call successors, (17) Word has length 234 [2024-11-20 19:05:29,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:29,710 INFO L225 Difference]: With dead ends: 933 [2024-11-20 19:05:29,710 INFO L226 Difference]: Without dead ends: 514 [2024-11-20 19:05:29,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 504 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=675, Unknown=0, NotChecked=0, Total=812 [2024-11-20 19:05:29,712 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 157 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:29,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 407 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 19:05:29,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-20 19:05:29,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 494. [2024-11-20 19:05:29,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 387 states have (on average 1.041343669250646) internal successors, (403), 391 states have internal predecessors, (403), 56 states have call successors, (56), 22 states have call predecessors, (56), 47 states have return successors, (127), 80 states have call predecessors, (127), 55 states have call successors, (127) [2024-11-20 19:05:29,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 586 transitions. [2024-11-20 19:05:29,732 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 586 transitions. Word has length 234 [2024-11-20 19:05:29,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:29,734 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 586 transitions. [2024-11-20 19:05:29,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.708333333333333) internal successors, (113), 22 states have internal predecessors, (113), 11 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 8 states have call successors, (17) [2024-11-20 19:05:29,734 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 586 transitions. [2024-11-20 19:05:29,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-20 19:05:29,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:29,735 INFO L215 NwaCegarLoop]: trace histogram [14, 13, 12, 12, 11, 10, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 1, 1, 1, 1] [2024-11-20 19:05:29,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-20 19:05:29,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-20 19:05:29,936 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:29,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:29,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1650966391, now seen corresponding path program 4 times [2024-11-20 19:05:29,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:29,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135108915] [2024-11-20 19:05:29,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:29,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:29,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 19:05:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:29,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-20 19:05:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 19:05:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:30,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 160 proven. 3 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2024-11-20 19:05:30,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:30,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135108915] [2024-11-20 19:05:30,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135108915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:30,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234699051] [2024-11-20 19:05:30,061 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-20 19:05:30,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:30,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:30,063 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:30,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-20 19:05:30,139 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-20 19:05:30,140 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:05:30,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-20 19:05:30,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:30,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 215 proven. 174 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2024-11-20 19:05:30,244 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:30,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 215 proven. 175 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-20 19:05:30,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234699051] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:30,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:30,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 14, 15] total 20 [2024-11-20 19:05:30,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415776793] [2024-11-20 19:05:30,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:30,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 19:05:30,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:30,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 19:05:30,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-20 19:05:30,617 INFO L87 Difference]: Start difference. First operand 494 states and 586 transitions. Second operand has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 17 states have internal predecessors, (108), 12 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (17), 7 states have call predecessors, (17), 9 states have call successors, (17) [2024-11-20 19:05:30,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:30,873 INFO L93 Difference]: Finished difference Result 801 states and 965 transitions. [2024-11-20 19:05:30,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 19:05:30,874 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 17 states have internal predecessors, (108), 12 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (17), 7 states have call predecessors, (17), 9 states have call successors, (17) Word has length 252 [2024-11-20 19:05:30,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:30,877 INFO L225 Difference]: With dead ends: 801 [2024-11-20 19:05:30,877 INFO L226 Difference]: Without dead ends: 389 [2024-11-20 19:05:30,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 533 SyntacticMatches, 10 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=678, Unknown=0, NotChecked=0, Total=812 [2024-11-20 19:05:30,879 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 111 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:30,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 445 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 19:05:30,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-20 19:05:30,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 368. [2024-11-20 19:05:30,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 290 states have (on average 1.0344827586206897) internal successors, (300), 293 states have internal predecessors, (300), 46 states have call successors, (46), 23 states have call predecessors, (46), 30 states have return successors, (62), 51 states have call predecessors, (62), 45 states have call successors, (62) [2024-11-20 19:05:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 408 transitions. [2024-11-20 19:05:30,895 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 408 transitions. Word has length 252 [2024-11-20 19:05:30,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:30,896 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 408 transitions. [2024-11-20 19:05:30,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 17 states have internal predecessors, (108), 12 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (17), 7 states have call predecessors, (17), 9 states have call successors, (17) [2024-11-20 19:05:30,896 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 408 transitions. [2024-11-20 19:05:30,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-20 19:05:30,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:30,897 INFO L215 NwaCegarLoop]: trace histogram [14, 13, 12, 12, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 2, 1, 1, 1, 1] [2024-11-20 19:05:30,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-20 19:05:31,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:31,101 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:31,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:31,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1942864476, now seen corresponding path program 5 times [2024-11-20 19:05:31,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:31,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021748440] [2024-11-20 19:05:31,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:31,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 19:05:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-20 19:05:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 148 proven. 181 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2024-11-20 19:05:31,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:31,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021748440] [2024-11-20 19:05:31,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021748440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:31,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376743872] [2024-11-20 19:05:31,829 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-20 19:05:31,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:31,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:31,831 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:31,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-20 19:05:31,921 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-20 19:05:31,921 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:05:31,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-20 19:05:31,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 148 proven. 181 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2024-11-20 19:05:32,170 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:34,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 218 proven. 160 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2024-11-20 19:05:34,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376743872] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:34,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:34,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 29] total 47 [2024-11-20 19:05:34,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742577884] [2024-11-20 19:05:34,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:34,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-20 19:05:34,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:34,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-20 19:05:34,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=1969, Unknown=0, NotChecked=0, Total=2256 [2024-11-20 19:05:34,222 INFO L87 Difference]: Start difference. First operand 368 states and 408 transitions. Second operand has 48 states, 47 states have (on average 2.702127659574468) internal successors, (127), 48 states have internal predecessors, (127), 12 states have call successors, (14), 1 states have call predecessors, (14), 14 states have return successors, (32), 32 states have call predecessors, (32), 12 states have call successors, (32) [2024-11-20 19:05:34,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:34,383 INFO L93 Difference]: Finished difference Result 418 states and 464 transitions. [2024-11-20 19:05:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-20 19:05:34,384 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.702127659574468) internal successors, (127), 48 states have internal predecessors, (127), 12 states have call successors, (14), 1 states have call predecessors, (14), 14 states have return successors, (32), 32 states have call predecessors, (32), 12 states have call successors, (32) Word has length 253 [2024-11-20 19:05:34,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:34,385 INFO L225 Difference]: With dead ends: 418 [2024-11-20 19:05:34,385 INFO L226 Difference]: Without dead ends: 416 [2024-11-20 19:05:34,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 522 SyntacticMatches, 33 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2196 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=323, Invalid=2227, Unknown=0, NotChecked=0, Total=2550 [2024-11-20 19:05:34,386 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 14 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:34,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 616 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:05:34,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-20 19:05:34,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 360. [2024-11-20 19:05:34,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 284 states have (on average 1.028169014084507) internal successors, (292), 287 states have internal predecessors, (292), 44 states have call successors, (44), 23 states have call predecessors, (44), 30 states have return successors, (59), 49 states have call predecessors, (59), 43 states have call successors, (59) [2024-11-20 19:05:34,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 395 transitions. [2024-11-20 19:05:34,401 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 395 transitions. Word has length 253 [2024-11-20 19:05:34,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:34,401 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 395 transitions. [2024-11-20 19:05:34,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.702127659574468) internal successors, (127), 48 states have internal predecessors, (127), 12 states have call successors, (14), 1 states have call predecessors, (14), 14 states have return successors, (32), 32 states have call predecessors, (32), 12 states have call successors, (32) [2024-11-20 19:05:34,402 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 395 transitions. [2024-11-20 19:05:34,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-20 19:05:34,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:34,403 INFO L215 NwaCegarLoop]: trace histogram [19, 18, 17, 16, 16, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 5, 3, 3, 1, 1, 1, 1] [2024-11-20 19:05:34,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-20 19:05:34,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:34,608 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:34,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:34,608 INFO L85 PathProgramCache]: Analyzing trace with hash 2028835144, now seen corresponding path program 3 times [2024-11-20 19:05:34,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:34,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238407487] [2024-11-20 19:05:34,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:34,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-20 19:05:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-11-20 19:05:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:34,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 426 proven. 203 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2024-11-20 19:05:34,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:34,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238407487] [2024-11-20 19:05:34,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238407487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:34,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843271626] [2024-11-20 19:05:34,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 19:05:34,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:34,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:34,969 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:34,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-20 19:05:35,061 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-20 19:05:35,061 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:05:35,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 19:05:35,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:35,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 281 proven. 4 refuted. 0 times theorem prover too weak. 1750 trivial. 0 not checked. [2024-11-20 19:05:35,112 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:35,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 281 proven. 4 refuted. 0 times theorem prover too weak. 1750 trivial. 0 not checked. [2024-11-20 19:05:35,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843271626] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:35,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:35,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7, 7] total 23 [2024-11-20 19:05:35,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790777081] [2024-11-20 19:05:35,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:35,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 19:05:35,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:35,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 19:05:35,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2024-11-20 19:05:35,424 INFO L87 Difference]: Start difference. First operand 360 states and 395 transitions. Second operand has 23 states, 22 states have (on average 4.636363636363637) internal successors, (102), 21 states have internal predecessors, (102), 10 states have call successors, (15), 3 states have call predecessors, (15), 8 states have return successors, (16), 10 states have call predecessors, (16), 8 states have call successors, (16) [2024-11-20 19:05:35,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:35,705 INFO L93 Difference]: Finished difference Result 631 states and 709 transitions. [2024-11-20 19:05:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-20 19:05:35,706 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.636363636363637) internal successors, (102), 21 states have internal predecessors, (102), 10 states have call successors, (15), 3 states have call predecessors, (15), 8 states have return successors, (16), 10 states have call predecessors, (16), 8 states have call successors, (16) Word has length 346 [2024-11-20 19:05:35,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:35,708 INFO L225 Difference]: With dead ends: 631 [2024-11-20 19:05:35,708 INFO L226 Difference]: Without dead ends: 370 [2024-11-20 19:05:35,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 784 GetRequests, 750 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=175, Invalid=881, Unknown=0, NotChecked=0, Total=1056 [2024-11-20 19:05:35,709 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 147 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:35,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 441 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 19:05:35,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-20 19:05:35,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 329. [2024-11-20 19:05:35,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 260 states have (on average 1.0269230769230768) internal successors, (267), 262 states have internal predecessors, (267), 40 states have call successors, (40), 24 states have call predecessors, (40), 27 states have return successors, (45), 42 states have call predecessors, (45), 39 states have call successors, (45) [2024-11-20 19:05:35,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 352 transitions. [2024-11-20 19:05:35,724 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 352 transitions. Word has length 346 [2024-11-20 19:05:35,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:35,725 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 352 transitions. [2024-11-20 19:05:35,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.636363636363637) internal successors, (102), 21 states have internal predecessors, (102), 10 states have call successors, (15), 3 states have call predecessors, (15), 8 states have return successors, (16), 10 states have call predecessors, (16), 8 states have call successors, (16) [2024-11-20 19:05:35,725 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 352 transitions. [2024-11-20 19:05:35,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-20 19:05:35,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:35,727 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 17, 17, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 7, 6, 4, 4, 1, 1, 1, 1] [2024-11-20 19:05:35,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-20 19:05:35,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:35,928 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:35,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:35,928 INFO L85 PathProgramCache]: Analyzing trace with hash 322047479, now seen corresponding path program 4 times [2024-11-20 19:05:35,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:35,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953882046] [2024-11-20 19:05:35,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:35,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:36,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:36,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:36,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:36,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:36,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-20 19:05:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-11-20 19:05:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:37,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 432 proven. 525 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked. [2024-11-20 19:05:37,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:37,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953882046] [2024-11-20 19:05:37,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953882046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:37,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496100187] [2024-11-20 19:05:37,496 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-20 19:05:37,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:37,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:37,498 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:37,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-20 19:05:37,621 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-20 19:05:37,622 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:05:37,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-11-20 19:05:37,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:38,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 432 proven. 525 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked. [2024-11-20 19:05:38,002 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:43,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 585 proven. 468 refuted. 0 times theorem prover too weak. 1749 trivial. 0 not checked. [2024-11-20 19:05:43,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496100187] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:43,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:43,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 37] total 58 [2024-11-20 19:05:43,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766533249] [2024-11-20 19:05:43,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:43,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-11-20 19:05:43,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:43,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-11-20 19:05:43,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=3007, Unknown=0, NotChecked=0, Total=3422 [2024-11-20 19:05:43,117 INFO L87 Difference]: Start difference. First operand 329 states and 352 transitions. Second operand has 59 states, 58 states have (on average 2.6551724137931036) internal successors, (154), 59 states have internal predecessors, (154), 15 states have call successors, (17), 1 states have call predecessors, (17), 17 states have return successors, (40), 40 states have call predecessors, (40), 15 states have call successors, (40) [2024-11-20 19:05:43,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:43,274 INFO L93 Difference]: Finished difference Result 366 states and 393 transitions. [2024-11-20 19:05:43,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-20 19:05:43,275 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.6551724137931036) internal successors, (154), 59 states have internal predecessors, (154), 15 states have call successors, (17), 1 states have call predecessors, (17), 17 states have return successors, (40), 40 states have call predecessors, (40), 15 states have call successors, (40) Word has length 404 [2024-11-20 19:05:43,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:43,277 INFO L225 Difference]: With dead ends: 366 [2024-11-20 19:05:43,277 INFO L226 Difference]: Without dead ends: 356 [2024-11-20 19:05:43,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 848 SyntacticMatches, 62 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4569 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=461, Invalid=3321, Unknown=0, NotChecked=0, Total=3782 [2024-11-20 19:05:43,278 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 8 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:43,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 546 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:05:43,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-20 19:05:43,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 350. [2024-11-20 19:05:43,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 277 states have (on average 1.0216606498194947) internal successors, (283), 278 states have internal predecessors, (283), 43 states have call successors, (43), 24 states have call predecessors, (43), 29 states have return successors, (51), 47 states have call predecessors, (51), 42 states have call successors, (51) [2024-11-20 19:05:43,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 377 transitions. [2024-11-20 19:05:43,293 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 377 transitions. Word has length 404 [2024-11-20 19:05:43,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:43,293 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 377 transitions. [2024-11-20 19:05:43,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.6551724137931036) internal successors, (154), 59 states have internal predecessors, (154), 15 states have call successors, (17), 1 states have call predecessors, (17), 17 states have return successors, (40), 40 states have call predecessors, (40), 15 states have call successors, (40) [2024-11-20 19:05:43,294 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 377 transitions. [2024-11-20 19:05:43,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-20 19:05:43,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:43,296 INFO L215 NwaCegarLoop]: trace histogram [31, 30, 30, 30, 25, 24, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 10, 9, 7, 5, 1, 1, 1, 1] [2024-11-20 19:05:43,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-20 19:05:43,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:43,497 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:43,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:43,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1893780207, now seen corresponding path program 6 times [2024-11-20 19:05:43,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:43,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479186547] [2024-11-20 19:05:43,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:43,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 19:05:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-20 19:05:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-20 19:05:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2024-11-20 19:05:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 19:05:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:43,966 INFO L134 CoverageAnalysis]: Checked inductivity of 6216 backedges. 1361 proven. 243 refuted. 0 times theorem prover too weak. 4612 trivial. 0 not checked. [2024-11-20 19:05:43,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:43,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479186547] [2024-11-20 19:05:43,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479186547] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:43,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89125478] [2024-11-20 19:05:43,966 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-20 19:05:43,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:43,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:43,967 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:43,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-20 19:05:44,140 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-11-20 19:05:44,140 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:05:44,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 19:05:44,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:44,234 INFO L134 CoverageAnalysis]: Checked inductivity of 6216 backedges. 2016 proven. 44 refuted. 0 times theorem prover too weak. 4156 trivial. 0 not checked. [2024-11-20 19:05:44,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 6216 backedges. 1125 proven. 138 refuted. 0 times theorem prover too weak. 4953 trivial. 0 not checked. [2024-11-20 19:05:45,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89125478] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:45,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:45,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 12, 13] total 30 [2024-11-20 19:05:45,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297959865] [2024-11-20 19:05:45,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:45,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-20 19:05:45,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:45,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-20 19:05:45,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=747, Unknown=0, NotChecked=0, Total=870 [2024-11-20 19:05:45,159 INFO L87 Difference]: Start difference. First operand 350 states and 377 transitions. Second operand has 30 states, 29 states have (on average 6.103448275862069) internal successors, (177), 29 states have internal predecessors, (177), 20 states have call successors, (33), 3 states have call predecessors, (33), 9 states have return successors, (37), 17 states have call predecessors, (37), 19 states have call successors, (37) [2024-11-20 19:05:45,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:45,489 INFO L93 Difference]: Finished difference Result 496 states and 537 transitions. [2024-11-20 19:05:45,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-20 19:05:45,490 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 6.103448275862069) internal successors, (177), 29 states have internal predecessors, (177), 20 states have call successors, (33), 3 states have call predecessors, (33), 9 states have return successors, (37), 17 states have call predecessors, (37), 19 states have call successors, (37) Word has length 594 [2024-11-20 19:05:45,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:45,492 INFO L225 Difference]: With dead ends: 496 [2024-11-20 19:05:45,492 INFO L226 Difference]: Without dead ends: 382 [2024-11-20 19:05:45,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1334 GetRequests, 1291 SyntacticMatches, 6 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=224, Invalid=1258, Unknown=0, NotChecked=0, Total=1482 [2024-11-20 19:05:45,493 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 97 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:45,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 556 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 19:05:45,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-20 19:05:45,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 356. [2024-11-20 19:05:45,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 282 states have (on average 1.024822695035461) internal successors, (289), 283 states have internal predecessors, (289), 44 states have call successors, (44), 25 states have call predecessors, (44), 29 states have return successors, (51), 47 states have call predecessors, (51), 43 states have call successors, (51) [2024-11-20 19:05:45,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 384 transitions. [2024-11-20 19:05:45,508 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 384 transitions. Word has length 594 [2024-11-20 19:05:45,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:45,522 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 384 transitions. [2024-11-20 19:05:45,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 6.103448275862069) internal successors, (177), 29 states have internal predecessors, (177), 20 states have call successors, (33), 3 states have call predecessors, (33), 9 states have return successors, (37), 17 states have call predecessors, (37), 19 states have call successors, (37) [2024-11-20 19:05:45,523 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 384 transitions. [2024-11-20 19:05:45,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2024-11-20 19:05:45,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:45,525 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 29, 28, 24, 24, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 9, 6, 5, 1, 1, 1, 1] [2024-11-20 19:05:45,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-20 19:05:45,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-20 19:05:45,726 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:45,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:45,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1882894577, now seen corresponding path program 7 times [2024-11-20 19:05:45,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:45,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741100531] [2024-11-20 19:05:45,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:45,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 19:05:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-20 19:05:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-20 19:05:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:45,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2024-11-20 19:05:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-20 19:05:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,143 INFO L134 CoverageAnalysis]: Checked inductivity of 5820 backedges. 907 proven. 318 refuted. 0 times theorem prover too weak. 4595 trivial. 0 not checked. [2024-11-20 19:05:46,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:46,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741100531] [2024-11-20 19:05:46,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741100531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:46,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333872097] [2024-11-20 19:05:46,143 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-20 19:05:46,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:46,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:46,144 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:46,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-20 19:05:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:46,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-20 19:05:46,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 5820 backedges. 907 proven. 318 refuted. 0 times theorem prover too weak. 4595 trivial. 0 not checked. [2024-11-20 19:05:46,433 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:47,287 INFO L134 CoverageAnalysis]: Checked inductivity of 5820 backedges. 907 proven. 332 refuted. 0 times theorem prover too weak. 4581 trivial. 0 not checked. [2024-11-20 19:05:47,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333872097] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:47,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:47,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 15] total 23 [2024-11-20 19:05:47,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729795881] [2024-11-20 19:05:47,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:47,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 19:05:47,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:47,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 19:05:47,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-11-20 19:05:47,289 INFO L87 Difference]: Start difference. First operand 356 states and 384 transitions. Second operand has 23 states, 22 states have (on average 5.7727272727272725) internal successors, (127), 22 states have internal predecessors, (127), 19 states have call successors, (23), 2 states have call predecessors, (23), 6 states have return successors, (26), 11 states have call predecessors, (26), 18 states have call successors, (26) [2024-11-20 19:05:47,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:47,485 INFO L93 Difference]: Finished difference Result 421 states and 465 transitions. [2024-11-20 19:05:47,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 19:05:47,485 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 5.7727272727272725) internal successors, (127), 22 states have internal predecessors, (127), 19 states have call successors, (23), 2 states have call predecessors, (23), 6 states have return successors, (26), 11 states have call predecessors, (26), 18 states have call successors, (26) Word has length 575 [2024-11-20 19:05:47,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:47,487 INFO L225 Difference]: With dead ends: 421 [2024-11-20 19:05:47,487 INFO L226 Difference]: Without dead ends: 328 [2024-11-20 19:05:47,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1281 GetRequests, 1250 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2024-11-20 19:05:47,488 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 104 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:47,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 237 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 19:05:47,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-20 19:05:47,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 299. [2024-11-20 19:05:47,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 238 states have (on average 1.0210084033613445) internal successors, (243), 238 states have internal predecessors, (243), 37 states have call successors, (37), 24 states have call predecessors, (37), 23 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 19:05:47,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 316 transitions. [2024-11-20 19:05:47,499 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 316 transitions. Word has length 575 [2024-11-20 19:05:47,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:47,500 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 316 transitions. [2024-11-20 19:05:47,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.7727272727272725) internal successors, (127), 22 states have internal predecessors, (127), 19 states have call successors, (23), 2 states have call predecessors, (23), 6 states have return successors, (26), 11 states have call predecessors, (26), 18 states have call successors, (26) [2024-11-20 19:05:47,500 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 316 transitions. [2024-11-20 19:05:47,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2024-11-20 19:05:47,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:47,502 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 31, 30, 27, 26, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 9, 7, 5, 1, 1, 1, 1] [2024-11-20 19:05:47,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-20 19:05:47,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-20 19:05:47,703 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:47,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:47,703 INFO L85 PathProgramCache]: Analyzing trace with hash 458686991, now seen corresponding path program 8 times [2024-11-20 19:05:47,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:47,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238848623] [2024-11-20 19:05:47,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:47,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 19:05:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-20 19:05:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-20 19:05:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:47,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:47,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2024-11-20 19:05:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-20 19:05:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:48,297 INFO L134 CoverageAnalysis]: Checked inductivity of 7130 backedges. 1576 proven. 295 refuted. 0 times theorem prover too weak. 5259 trivial. 0 not checked. [2024-11-20 19:05:48,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:48,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238848623] [2024-11-20 19:05:48,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238848623] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:48,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145480301] [2024-11-20 19:05:48,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 19:05:48,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:48,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:48,300 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:48,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-20 19:05:48,516 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 19:05:48,516 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:05:48,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 19:05:48,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:48,590 INFO L134 CoverageAnalysis]: Checked inductivity of 7130 backedges. 689 proven. 201 refuted. 0 times theorem prover too weak. 6240 trivial. 0 not checked. [2024-11-20 19:05:48,591 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:05:49,242 INFO L134 CoverageAnalysis]: Checked inductivity of 7130 backedges. 689 proven. 203 refuted. 0 times theorem prover too weak. 6238 trivial. 0 not checked. [2024-11-20 19:05:49,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145480301] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:05:49,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:05:49,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 11] total 25 [2024-11-20 19:05:49,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111876108] [2024-11-20 19:05:49,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:05:49,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-20 19:05:49,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:05:49,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-20 19:05:49,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2024-11-20 19:05:49,244 INFO L87 Difference]: Start difference. First operand 299 states and 316 transitions. Second operand has 25 states, 24 states have (on average 5.875) internal successors, (141), 24 states have internal predecessors, (141), 14 states have call successors, (24), 2 states have call predecessors, (24), 9 states have return successors, (27), 19 states have call predecessors, (27), 13 states have call successors, (27) [2024-11-20 19:05:49,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:05:49,541 INFO L93 Difference]: Finished difference Result 352 states and 375 transitions. [2024-11-20 19:05:49,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-20 19:05:49,541 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.875) internal successors, (141), 24 states have internal predecessors, (141), 14 states have call successors, (24), 2 states have call predecessors, (24), 9 states have return successors, (27), 19 states have call predecessors, (27), 13 states have call successors, (27) Word has length 634 [2024-11-20 19:05:49,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:05:49,543 INFO L225 Difference]: With dead ends: 352 [2024-11-20 19:05:49,543 INFO L226 Difference]: Without dead ends: 332 [2024-11-20 19:05:49,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1427 GetRequests, 1387 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=1062, Unknown=0, NotChecked=0, Total=1260 [2024-11-20 19:05:49,544 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 132 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 19:05:49,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 482 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 19:05:49,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-20 19:05:49,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 308. [2024-11-20 19:05:49,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 246 states have (on average 1.016260162601626) internal successors, (250), 245 states have internal predecessors, (250), 38 states have call successors, (38), 26 states have call predecessors, (38), 23 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-20 19:05:49,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 325 transitions. [2024-11-20 19:05:49,575 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 325 transitions. Word has length 634 [2024-11-20 19:05:49,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:05:49,575 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 325 transitions. [2024-11-20 19:05:49,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.875) internal successors, (141), 24 states have internal predecessors, (141), 14 states have call successors, (24), 2 states have call predecessors, (24), 9 states have return successors, (27), 19 states have call predecessors, (27), 13 states have call successors, (27) [2024-11-20 19:05:49,575 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 325 transitions. [2024-11-20 19:05:49,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2024-11-20 19:05:49,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:05:49,578 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 33, 32, 27, 27, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 11, 10, 7, 6, 1, 1, 1, 1] [2024-11-20 19:05:49,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-20 19:05:49,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-20 19:05:49,778 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 19:05:49,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:05:49,779 INFO L85 PathProgramCache]: Analyzing trace with hash -330128645, now seen corresponding path program 9 times [2024-11-20 19:05:49,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:05:49,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477940257] [2024-11-20 19:05:49,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:05:49,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:05:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:51,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 19:05:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:51,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-20 19:05:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-20 19:05:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:52,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2024-11-20 19:05:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:52,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 19:05:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-20 19:05:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 19:05:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 19:05:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 19:05:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 19:05:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:05:53,113 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1237 proven. 1440 refuted. 0 times theorem prover too weak. 4877 trivial. 0 not checked. [2024-11-20 19:05:53,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:05:53,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477940257] [2024-11-20 19:05:53,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477940257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:05:53,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367179494] [2024-11-20 19:05:53,114 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 19:05:53,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:05:53,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:05:53,116 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:05:53,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-20 19:05:53,354 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s) [2024-11-20 19:05:53,354 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:05:53,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 133 conjuncts are in the unsatisfiable core [2024-11-20 19:05:53,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:05:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1237 proven. 1440 refuted. 0 times theorem prover too weak. 4877 trivial. 0 not checked. [2024-11-20 19:05:53,867 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:06:06,760 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1543 proven. 1316 refuted. 0 times theorem prover too weak. 4695 trivial. 0 not checked. [2024-11-20 19:06:06,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367179494] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:06:06,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:06:06,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 46] total 69 [2024-11-20 19:06:06,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865725861] [2024-11-20 19:06:06,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:06:06,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2024-11-20 19:06:06,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:06:06,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2024-11-20 19:06:06,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=569, Invalid=4261, Unknown=0, NotChecked=0, Total=4830 [2024-11-20 19:06:06,764 INFO L87 Difference]: Start difference. First operand 308 states and 325 transitions. Second operand has 70 states, 69 states have (on average 2.6231884057971016) internal successors, (181), 70 states have internal predecessors, (181), 18 states have call successors, (20), 1 states have call predecessors, (20), 20 states have return successors, (48), 48 states have call predecessors, (48), 18 states have call successors, (48) [2024-11-20 19:06:06,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:06:06,874 INFO L93 Difference]: Finished difference Result 308 states and 325 transitions. [2024-11-20 19:06:06,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-20 19:06:06,875 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 2.6231884057971016) internal successors, (181), 70 states have internal predecessors, (181), 18 states have call successors, (20), 1 states have call predecessors, (20), 20 states have return successors, (48), 48 states have call predecessors, (48), 18 states have call successors, (48) Word has length 653 [2024-11-20 19:06:06,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:06:06,876 INFO L225 Difference]: With dead ends: 308 [2024-11-20 19:06:06,876 INFO L226 Difference]: Without dead ends: 0 [2024-11-20 19:06:06,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1569 GetRequests, 1390 SyntacticMatches, 111 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8705 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=569, Invalid=4261, Unknown=0, NotChecked=0, Total=4830 [2024-11-20 19:06:06,877 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:06:06,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 555 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:06:06,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-20 19:06:06,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-20 19:06:06,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:06:06,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-20 19:06:06,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 653 [2024-11-20 19:06:06,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:06:06,879 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 19:06:06,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 2.6231884057971016) internal successors, (181), 70 states have internal predecessors, (181), 18 states have call successors, (20), 1 states have call predecessors, (20), 20 states have return successors, (48), 48 states have call predecessors, (48), 18 states have call successors, (48) [2024-11-20 19:06:06,879 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-20 19:06:06,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-20 19:06:06,881 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2024-11-20 19:06:06,881 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2024-11-20 19:06:06,881 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2024-11-20 19:06:06,881 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2024-11-20 19:06:06,881 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2024-11-20 19:06:06,882 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2024-11-20 19:06:06,882 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2024-11-20 19:06:06,882 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2024-11-20 19:06:06,882 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2024-11-20 19:06:06,882 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2024-11-20 19:06:06,882 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2024-11-20 19:06:06,882 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2024-11-20 19:06:06,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-20 19:06:07,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-20 19:06:07,086 INFO L407 BasicCegarLoop]: Path program histogram: [9, 4, 2, 2, 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 19:06:07,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-20 19:06:12,804 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 19:06:12,828 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-20 19:06:12,839 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-20 19:06:12,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:06:12 BoogieIcfgContainer [2024-11-20 19:06:12,840 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 19:06:12,840 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 19:06:12,840 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 19:06:12,840 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 19:06:12,841 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:05:07" (3/4) ... [2024-11-20 19:06:12,843 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 19:06:12,850 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo2 [2024-11-20 19:06:12,850 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo1 [2024-11-20 19:06:12,853 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-20 19:06:12,854 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-20 19:06:12,854 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-20 19:06:12,854 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-20 19:06:12,917 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 19:06:12,917 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 19:06:12,917 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 19:06:12,918 INFO L158 Benchmark]: Toolchain (without parser) took 66209.61ms. Allocated memory was 188.7MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 119.6MB in the beginning and 1.1GB in the end (delta: -963.0MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2024-11-20 19:06:12,918 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 109.1MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 19:06:12,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.55ms. Allocated memory is still 188.7MB. Free memory was 119.4MB in the beginning and 107.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 19:06:12,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.48ms. Allocated memory is still 188.7MB. Free memory was 107.2MB in the beginning and 105.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 19:06:12,918 INFO L158 Benchmark]: Boogie Preprocessor took 36.72ms. Allocated memory is still 188.7MB. Free memory was 105.9MB in the beginning and 104.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 19:06:12,918 INFO L158 Benchmark]: RCFGBuilder took 259.62ms. Allocated memory is still 188.7MB. Free memory was 104.3MB in the beginning and 149.8MB in the end (delta: -45.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 19:06:12,918 INFO L158 Benchmark]: TraceAbstraction took 65633.84ms. Allocated memory was 188.7MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 148.8MB in the beginning and 1.1GB in the end (delta: -938.0MB). Peak memory consumption was 724.0MB. Max. memory is 16.1GB. [2024-11-20 19:06:12,918 INFO L158 Benchmark]: Witness Printer took 77.21ms. Allocated memory is still 1.2GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 19:06:12,919 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 109.1MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.55ms. Allocated memory is still 188.7MB. Free memory was 119.4MB in the beginning and 107.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.48ms. Allocated memory is still 188.7MB. Free memory was 107.2MB in the beginning and 105.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.72ms. Allocated memory is still 188.7MB. Free memory was 105.9MB in the beginning and 104.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 259.62ms. Allocated memory is still 188.7MB. Free memory was 104.3MB in the beginning and 149.8MB in the end (delta: -45.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 65633.84ms. Allocated memory was 188.7MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 148.8MB in the beginning and 1.1GB in the end (delta: -938.0MB). Peak memory consumption was 724.0MB. Max. memory is 16.1GB. * Witness Printer took 77.21ms. Allocated memory is still 1.2GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 53 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 59.8s, OverallIterations: 39, TraceHistogramMax: 34, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3701 SdHoareTripleChecker+Valid, 5.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3573 mSDsluCounter, 14516 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12874 mSDsCounter, 1153 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15265 IncrementalHoareTripleChecker+Invalid, 16418 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1153 mSolverCounterUnsat, 1642 mSDtfsCounter, 15265 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12892 GetRequests, 11556 SyntacticMatches, 374 SemanticMatches, 962 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24029 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=658occurred in iteration=28, InterpolantAutomatonStates: 705, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 39 MinimizatonAttempts, 1295 StatesRemovedByMinimization, 38 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 41.9s InterpolantComputationTime, 11584 NumberOfCodeBlocks, 10782 NumberOfCodeBlocksAsserted, 122 NumberOfCheckSat, 16848 ConstructedInterpolants, 0 QuantifiedInterpolants, 30268 SizeOfPredicates, 82 NumberOfNonLiveVariables, 9356 ConjunctsInSsa, 579 ConjunctsInUnsatCore, 90 InterpolantComputations, 16 PerfectInterpolantSequences, 101054/112438 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - ProcedureContractResult [Line: 19]: Procedure Contract for fibo2 Derived contract for procedure fibo2. Requires: (n <= 7) Ensures: ((((\result == 1) || (2 != n)) && (n <= 7)) && ((5 != n) || (1 < \result))) - ProcedureContractResult [Line: 9]: Procedure Contract for fibo1 Derived contract for procedure fibo1. Requires: ((n < 7) || (n == 8)) Ensures: (((((((n == 1) && (\result == 1)) || ((\result == 0) && (n <= 0))) || (2 < n)) && ((4 < n) || (\result < 4))) && ((n < 7) || (n == 8))) && (((0 < \result) || ((\result == 0) && (n <= 0))) || (3 < n))) RESULT: Ultimate proved your program to be correct! [2024-11-20 19:06:12,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE