./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 a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/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-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 13:59:25,254 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 13:59:25,316 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 13:59:25,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 13:59:25,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 13:59:25,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 13:59:25,343 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 13:59:25,344 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 13:59:25,344 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 13:59:25,345 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 13:59:25,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 13:59:25,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 13:59:25,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 13:59:25,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 13:59:25,347 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 13:59:25,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 13:59:25,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 13:59:25,348 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 13:59:25,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 13:59:25,350 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 13:59:25,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 13:59:25,351 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 13:59:25,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 13:59:25,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 13:59:25,351 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 13:59:25,352 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 13:59:25,352 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 13:59:25,352 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 13:59:25,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 13:59:25,352 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 13:59:25,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 13:59:25,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 13:59:25,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 13:59:25,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 13:59:25,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:59:25,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 13:59:25,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 13:59:25,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 13:59:25,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 13:59:25,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 13:59:25,357 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 13:59:25,357 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 13:59:25,358 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 13:59:25,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 13:59:25,358 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 [2024-10-13 13:59:25,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 13:59:25,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 13:59:25,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 13:59:25,576 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 13:59:25,576 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 13:59:25,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-10-13 13:59:27,002 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 13:59:27,147 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 13:59:27,148 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-10-13 13:59:27,155 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4996746e6/51fe00e9202141ef837f9bc51a3543e7/FLAG90cd7394e [2024-10-13 13:59:27,165 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4996746e6/51fe00e9202141ef837f9bc51a3543e7 [2024-10-13 13:59:27,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 13:59:27,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 13:59:27,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 13:59:27,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 13:59:27,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 13:59:27,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:59:27" (1/1) ... [2024-10-13 13:59:27,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25edb5e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27, skipping insertion in model container [2024-10-13 13:59:27,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:59:27" (1/1) ... [2024-10-13 13:59:27,201 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 13:59:27,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:59:27,382 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 13:59:27,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:59:27,410 INFO L204 MainTranslator]: Completed translation [2024-10-13 13:59:27,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27 WrapperNode [2024-10-13 13:59:27,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 13:59:27,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 13:59:27,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 13:59:27,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 13:59:27,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27" (1/1) ... [2024-10-13 13:59:27,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27" (1/1) ... [2024-10-13 13:59:27,437 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2024-10-13 13:59:27,438 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 13:59:27,438 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 13:59:27,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 13:59:27,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 13:59:27,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27" (1/1) ... [2024-10-13 13:59:27,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27" (1/1) ... [2024-10-13 13:59:27,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27" (1/1) ... [2024-10-13 13:59:27,473 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 13:59:27,474 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27" (1/1) ... [2024-10-13 13:59:27,474 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27" (1/1) ... [2024-10-13 13:59:27,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27" (1/1) ... [2024-10-13 13:59:27,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27" (1/1) ... [2024-10-13 13:59:27,479 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27" (1/1) ... [2024-10-13 13:59:27,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27" (1/1) ... [2024-10-13 13:59:27,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 13:59:27,481 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 13:59:27,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 13:59:27,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 13:59:27,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27" (1/1) ... [2024-10-13 13:59:27,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:59:27,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:27,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 13:59:27,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 13:59:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 13:59:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 13:59:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-10-13 13:59:27,562 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-10-13 13:59:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-10-13 13:59:27,562 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-10-13 13:59:27,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 13:59:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 13:59:27,616 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 13:59:27,618 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 13:59:27,753 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-10-13 13:59:27,753 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 13:59:27,778 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 13:59:27,778 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 13:59:27,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:59:27 BoogieIcfgContainer [2024-10-13 13:59:27,781 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 13:59:27,783 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 13:59:27,783 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 13:59:27,786 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 13:59:27,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:59:27" (1/3) ... [2024-10-13 13:59:27,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108c9cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:59:27, skipping insertion in model container [2024-10-13 13:59:27,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:59:27" (2/3) ... [2024-10-13 13:59:27,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108c9cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:59:27, skipping insertion in model container [2024-10-13 13:59:27,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:59:27" (3/3) ... [2024-10-13 13:59:27,788 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2024-10-13 13:59:27,802 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 13:59:27,802 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-13 13:59:27,846 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 13:59:27,852 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;@519c9f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 13:59:27,852 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-10-13 13:59:27,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 40 states have internal predecessors, (45), 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) [2024-10-13 13:59:27,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-13 13:59:27,863 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:27,863 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 13:59:27,864 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:27,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:27,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1021543012, now seen corresponding path program 1 times [2024-10-13 13:59:27,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:27,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217096080] [2024-10-13 13:59:27,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:27,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:28,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:59:28,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:28,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217096080] [2024-10-13 13:59:28,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217096080] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:28,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:59:28,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:59:28,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560100160] [2024-10-13 13:59:28,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:28,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:59:28,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:28,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:59:28,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:59:28,042 INFO L87 Difference]: Start difference. First operand has 48 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 40 states have internal predecessors, (45), 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 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-10-13 13:59:28,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:28,086 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2024-10-13 13:59:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:59:28,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 6 [2024-10-13 13:59:28,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:28,093 INFO L225 Difference]: With dead ends: 52 [2024-10-13 13:59:28,093 INFO L226 Difference]: Without dead ends: 44 [2024-10-13 13:59:28,095 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 [2024-10-13 13:59:28,097 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 11 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:28,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 80 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:59:28,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-13 13:59:28,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2024-10-13 13:59:28,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.56) internal successors, (39), 35 states have internal predecessors, (39), 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) [2024-10-13 13:59:28,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2024-10-13 13:59:28,144 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 6 [2024-10-13 13:59:28,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:28,144 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-10-13 13:59:28,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-10-13 13:59:28,144 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2024-10-13 13:59:28,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-13 13:59:28,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:28,145 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:59:28,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 13:59:28,145 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:28,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:28,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1603062213, now seen corresponding path program 1 times [2024-10-13 13:59:28,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:28,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114379193] [2024-10-13 13:59:28,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:28,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:28,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:59:28,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:28,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114379193] [2024-10-13 13:59:28,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114379193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:28,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:59:28,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:59:28,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827158709] [2024-10-13 13:59:28,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:28,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:59:28,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:28,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:59:28,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:59:28,251 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 5 states, 3 states have (on average 2.0) 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) [2024-10-13 13:59:28,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:28,319 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2024-10-13 13:59:28,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:59:28,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) 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 [2024-10-13 13:59:28,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:28,320 INFO L225 Difference]: With dead ends: 63 [2024-10-13 13:59:28,320 INFO L226 Difference]: Without dead ends: 57 [2024-10-13 13:59:28,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 13:59:28,322 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 26 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:28,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 157 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:59:28,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-10-13 13:59:28,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2024-10-13 13:59:28,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 45 states have internal predecessors, (51), 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) [2024-10-13 13:59:28,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2024-10-13 13:59:28,330 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 7 [2024-10-13 13:59:28,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:28,330 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2024-10-13 13:59:28,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) 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) [2024-10-13 13:59:28,330 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2024-10-13 13:59:28,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-13 13:59:28,331 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:28,331 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:59:28,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 13:59:28,331 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:28,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:28,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1070030294, now seen corresponding path program 1 times [2024-10-13 13:59:28,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:28,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837801731] [2024-10-13 13:59:28,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:28,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:28,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:59:28,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:28,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837801731] [2024-10-13 13:59:28,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837801731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:28,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:59:28,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:59:28,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406523125] [2024-10-13 13:59:28,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:28,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:59:28,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:28,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:59:28,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:59:28,362 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-13 13:59:28,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:28,382 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2024-10-13 13:59:28,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:59:28,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2024-10-13 13:59:28,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:28,383 INFO L225 Difference]: With dead ends: 57 [2024-10-13 13:59:28,383 INFO L226 Difference]: Without dead ends: 55 [2024-10-13 13:59:28,384 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 [2024-10-13 13:59:28,385 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 11 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:28,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 68 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:59:28,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-10-13 13:59:28,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2024-10-13 13:59:28,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 43 states have internal predecessors, (49), 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) [2024-10-13 13:59:28,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2024-10-13 13:59:28,392 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 62 transitions. Word has length 12 [2024-10-13 13:59:28,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:28,393 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 62 transitions. [2024-10-13 13:59:28,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-13 13:59:28,393 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2024-10-13 13:59:28,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-13 13:59:28,393 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:28,393 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:59:28,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 13:59:28,394 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:28,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:28,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1188799193, now seen corresponding path program 1 times [2024-10-13 13:59:28,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:28,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134030456] [2024-10-13 13:59:28,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:28,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:28,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:59:28,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:28,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134030456] [2024-10-13 13:59:28,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134030456] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:28,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:59:28,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 13:59:28,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083175319] [2024-10-13 13:59:28,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:28,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:59:28,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:28,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:59:28,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:59:28,495 INFO L87 Difference]: Start difference. First operand 53 states and 62 transitions. Second operand has 7 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-10-13 13:59:28,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:28,638 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2024-10-13 13:59:28,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:59:28,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 13 [2024-10-13 13:59:28,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:28,640 INFO L225 Difference]: With dead ends: 57 [2024-10-13 13:59:28,640 INFO L226 Difference]: Without dead ends: 53 [2024-10-13 13:59:28,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:59:28,641 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 51 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:28,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 91 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:59:28,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-13 13:59:28,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2024-10-13 13:59:28,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 36 states have (on average 1.25) internal successors, (45), 39 states have internal predecessors, (45), 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) [2024-10-13 13:59:28,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2024-10-13 13:59:28,648 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 13 [2024-10-13 13:59:28,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:28,648 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2024-10-13 13:59:28,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-10-13 13:59:28,648 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2024-10-13 13:59:28,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-13 13:59:28,649 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:28,649 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:59:28,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 13:59:28,649 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:28,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:28,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1317113808, now seen corresponding path program 1 times [2024-10-13 13:59:28,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:28,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587759982] [2024-10-13 13:59:28,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:28,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:28,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:59:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:28,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-13 13:59:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:28,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:59:28,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:28,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587759982] [2024-10-13 13:59:28,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587759982] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:28,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:59:28,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:59:28,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763006782] [2024-10-13 13:59:28,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:28,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:59:28,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:28,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:59:28,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:59:28,757 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-10-13 13:59:28,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:28,789 INFO L93 Difference]: Finished difference Result 73 states and 93 transitions. [2024-10-13 13:59:28,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:59:28,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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 22 [2024-10-13 13:59:28,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:28,791 INFO L225 Difference]: With dead ends: 73 [2024-10-13 13:59:28,791 INFO L226 Difference]: Without dead ends: 68 [2024-10-13 13:59:28,792 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 [2024-10-13 13:59:28,793 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:28,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 140 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:59:28,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-13 13:59:28,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2024-10-13 13:59:28,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 49 states have internal predecessors, (55), 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) [2024-10-13 13:59:28,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2024-10-13 13:59:28,801 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 22 [2024-10-13 13:59:28,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:28,801 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2024-10-13 13:59:28,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-10-13 13:59:28,801 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2024-10-13 13:59:28,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-13 13:59:28,802 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:28,803 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] [2024-10-13 13:59:28,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 13:59:28,803 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:28,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:28,804 INFO L85 PathProgramCache]: Analyzing trace with hash -2108197165, now seen corresponding path program 1 times [2024-10-13 13:59:28,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:28,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218067888] [2024-10-13 13:59:28,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:28,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:28,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:59:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:28,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-13 13:59:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:28,911 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 13:59:28,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:28,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218067888] [2024-10-13 13:59:28,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218067888] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:28,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18224934] [2024-10-13 13:59:28,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:28,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:28,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:28,914 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) [2024-10-13 13:59:28,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 13:59:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:28,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 13:59:28,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:29,020 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:59:29,021 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:59:29,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18224934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:29,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:59:29,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2024-10-13 13:59:29,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516136372] [2024-10-13 13:59:29,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:29,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:59:29,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:29,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:59:29,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-13 13:59:29,023 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-10-13 13:59:29,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:29,120 INFO L93 Difference]: Finished difference Result 112 states and 139 transitions. [2024-10-13 13:59:29,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:59:29,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 23 [2024-10-13 13:59:29,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:29,121 INFO L225 Difference]: With dead ends: 112 [2024-10-13 13:59:29,124 INFO L226 Difference]: Without dead ends: 62 [2024-10-13 13:59:29,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-13 13:59:29,127 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 32 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:29,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 142 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:59:29,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-13 13:59:29,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2024-10-13 13:59:29,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 46 states have internal predecessors, (52), 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) [2024-10-13 13:59:29,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2024-10-13 13:59:29,145 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 23 [2024-10-13 13:59:29,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:29,145 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2024-10-13 13:59:29,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-10-13 13:59:29,145 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2024-10-13 13:59:29,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-13 13:59:29,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:29,146 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] [2024-10-13 13:59:29,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 13:59:29,351 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 [2024-10-13 13:59:29,352 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:29,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:29,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1308693282, now seen corresponding path program 1 times [2024-10-13 13:59:29,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:29,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887577299] [2024-10-13 13:59:29,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:29,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:29,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:59:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:29,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-13 13:59:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:29,458 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 13:59:29,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:29,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887577299] [2024-10-13 13:59:29,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887577299] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:29,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:59:29,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:59:29,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320684711] [2024-10-13 13:59:29,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:29,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:59:29,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:29,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:59:29,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:59:29,460 INFO L87 Difference]: Start difference. First operand 58 states and 70 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) [2024-10-13 13:59:29,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:29,487 INFO L93 Difference]: Finished difference Result 82 states and 107 transitions. [2024-10-13 13:59:29,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:59:29,488 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 24 [2024-10-13 13:59:29,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:29,488 INFO L225 Difference]: With dead ends: 82 [2024-10-13 13:59:29,489 INFO L226 Difference]: Without dead ends: 77 [2024-10-13 13:59:29,489 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 [2024-10-13 13:59:29,489 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 4 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:29,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 110 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:59:29,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-10-13 13:59:29,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 68. [2024-10-13 13:59:29,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 50 states have (on average 1.18) internal successors, (59), 54 states have internal predecessors, (59), 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) [2024-10-13 13:59:29,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 88 transitions. [2024-10-13 13:59:29,497 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 88 transitions. Word has length 24 [2024-10-13 13:59:29,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:29,497 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 88 transitions. [2024-10-13 13:59:29,497 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) [2024-10-13 13:59:29,498 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 88 transitions. [2024-10-13 13:59:29,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-13 13:59:29,498 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:29,499 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] [2024-10-13 13:59:29,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 13:59:29,499 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:29,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:29,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1559204346, now seen corresponding path program 1 times [2024-10-13 13:59:29,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:29,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400638350] [2024-10-13 13:59:29,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:29,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:29,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 13:59:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:29,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 13:59:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:29,556 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 13:59:29,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:29,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400638350] [2024-10-13 13:59:29,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400638350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:29,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:59:29,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:59:29,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674385529] [2024-10-13 13:59:29,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:29,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:59:29,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:29,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:59:29,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:59:29,559 INFO L87 Difference]: Start difference. First operand 68 states and 88 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-10-13 13:59:29,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:29,586 INFO L93 Difference]: Finished difference Result 82 states and 107 transitions. [2024-10-13 13:59:29,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:59:29,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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 28 [2024-10-13 13:59:29,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:29,587 INFO L225 Difference]: With dead ends: 82 [2024-10-13 13:59:29,587 INFO L226 Difference]: Without dead ends: 80 [2024-10-13 13:59:29,587 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 [2024-10-13 13:59:29,588 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 4 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:29,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 109 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:59:29,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-13 13:59:29,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2024-10-13 13:59:29,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 57 states have (on average 1.1578947368421053) internal successors, (66), 61 states have internal predecessors, (66), 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) [2024-10-13 13:59:29,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2024-10-13 13:59:29,596 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 28 [2024-10-13 13:59:29,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:29,597 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2024-10-13 13:59:29,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-10-13 13:59:29,597 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2024-10-13 13:59:29,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-13 13:59:29,598 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:29,598 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] [2024-10-13 13:59:29,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 13:59:29,599 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:29,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:29,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1102557063, now seen corresponding path program 1 times [2024-10-13 13:59:29,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:29,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77916483] [2024-10-13 13:59:29,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:29,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:29,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 13:59:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:29,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 13:59:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:29,664 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-13 13:59:29,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:29,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77916483] [2024-10-13 13:59:29,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77916483] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:29,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607842576] [2024-10-13 13:59:29,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:29,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:29,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:29,667 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) [2024-10-13 13:59:29,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 13:59:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:29,706 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:59:29,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:29,780 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:59:29,780 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 13:59:29,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607842576] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:29,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:29,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-10-13 13:59:29,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116086700] [2024-10-13 13:59:29,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:29,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-13 13:59:29,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:29,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-13 13:59:29,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-10-13 13:59:29,948 INFO L87 Difference]: Start difference. First operand 77 states and 100 transitions. Second operand has 19 states, 17 states have (on average 3.411764705882353) internal successors, (58), 15 states have internal predecessors, (58), 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) [2024-10-13 13:59:30,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:30,398 INFO L93 Difference]: Finished difference Result 203 states and 274 transitions. [2024-10-13 13:59:30,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-13 13:59:30,399 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.411764705882353) internal successors, (58), 15 states have internal predecessors, (58), 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 29 [2024-10-13 13:59:30,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:30,400 INFO L225 Difference]: With dead ends: 203 [2024-10-13 13:59:30,400 INFO L226 Difference]: Without dead ends: 134 [2024-10-13 13:59:30,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2024-10-13 13:59:30,405 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 135 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:30,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 504 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:59:30,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-10-13 13:59:30,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 120. [2024-10-13 13:59:30,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 91 states have (on average 1.164835164835165) internal successors, (106), 96 states have internal predecessors, (106), 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) [2024-10-13 13:59:30,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 156 transitions. [2024-10-13 13:59:30,426 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 156 transitions. Word has length 29 [2024-10-13 13:59:30,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:30,426 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 156 transitions. [2024-10-13 13:59:30,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.411764705882353) internal successors, (58), 15 states have internal predecessors, (58), 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) [2024-10-13 13:59:30,426 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 156 transitions. [2024-10-13 13:59:30,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-13 13:59:30,427 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:30,427 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] [2024-10-13 13:59:30,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 13:59:30,631 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 [2024-10-13 13:59:30,632 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:30,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:30,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1810923195, now seen corresponding path program 2 times [2024-10-13 13:59:30,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:30,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639778252] [2024-10-13 13:59:30,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:30,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:30,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 13:59:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:30,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-13 13:59:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:30,713 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:59:30,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:30,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639778252] [2024-10-13 13:59:30,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639778252] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:30,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625078750] [2024-10-13 13:59:30,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:59:30,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:30,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:30,715 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) [2024-10-13 13:59:30,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 13:59:30,771 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:59:30,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:59:30,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:59:30,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:59:30,828 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:59:30,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625078750] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:30,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:59:30,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-10-13 13:59:30,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476383494] [2024-10-13 13:59:30,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:30,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:59:30,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:30,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:59:30,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:59:30,830 INFO L87 Difference]: Start difference. First operand 120 states and 156 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-10-13 13:59:30,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:30,872 INFO L93 Difference]: Finished difference Result 129 states and 168 transitions. [2024-10-13 13:59:30,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:59:30,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 41 [2024-10-13 13:59:30,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:30,873 INFO L225 Difference]: With dead ends: 129 [2024-10-13 13:59:30,873 INFO L226 Difference]: Without dead ends: 128 [2024-10-13 13:59:30,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:59:30,874 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 3 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:30,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 132 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:59:30,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-10-13 13:59:30,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124. [2024-10-13 13:59:30,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 95 states have (on average 1.1578947368421053) internal successors, (110), 98 states have internal predecessors, (110), 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) [2024-10-13 13:59:30,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 160 transitions. [2024-10-13 13:59:30,883 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 160 transitions. Word has length 41 [2024-10-13 13:59:30,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:30,884 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 160 transitions. [2024-10-13 13:59:30,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-10-13 13:59:30,884 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 160 transitions. [2024-10-13 13:59:30,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-13 13:59:30,885 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:30,885 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] [2024-10-13 13:59:30,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 13:59:31,089 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 [2024-10-13 13:59:31,090 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:31,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:31,091 INFO L85 PathProgramCache]: Analyzing trace with hash 304044270, now seen corresponding path program 1 times [2024-10-13 13:59:31,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:31,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711331716] [2024-10-13 13:59:31,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:31,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:31,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 13:59:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:31,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-13 13:59:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:31,162 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:59:31,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:31,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711331716] [2024-10-13 13:59:31,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711331716] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:31,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023242797] [2024-10-13 13:59:31,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:31,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:31,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:31,166 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) [2024-10-13 13:59:31,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 13:59:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:31,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-13 13:59:31,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:31,422 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:59:31,423 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:31,718 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 13:59:31,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023242797] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:31,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:31,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 23 [2024-10-13 13:59:31,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417567112] [2024-10-13 13:59:31,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:31,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 13:59:31,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:31,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 13:59:31,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2024-10-13 13:59:31,721 INFO L87 Difference]: Start difference. First operand 124 states and 160 transitions. Second operand has 23 states, 21 states have (on average 3.380952380952381) internal successors, (71), 17 states have internal predecessors, (71), 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) [2024-10-13 13:59:32,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:32,239 INFO L93 Difference]: Finished difference Result 320 states and 422 transitions. [2024-10-13 13:59:32,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-13 13:59:32,239 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.380952380952381) internal successors, (71), 17 states have internal predecessors, (71), 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 42 [2024-10-13 13:59:32,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:32,242 INFO L225 Difference]: With dead ends: 320 [2024-10-13 13:59:32,242 INFO L226 Difference]: Without dead ends: 210 [2024-10-13 13:59:32,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 72 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2024-10-13 13:59:32,244 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 177 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:32,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 837 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:59:32,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-10-13 13:59:32,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 190. [2024-10-13 13:59:32,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 148 states have (on average 1.1554054054054055) internal successors, (171), 150 states have internal predecessors, (171), 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) [2024-10-13 13:59:32,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 244 transitions. [2024-10-13 13:59:32,269 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 244 transitions. Word has length 42 [2024-10-13 13:59:32,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:32,269 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 244 transitions. [2024-10-13 13:59:32,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.380952380952381) internal successors, (71), 17 states have internal predecessors, (71), 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) [2024-10-13 13:59:32,270 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 244 transitions. [2024-10-13 13:59:32,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-13 13:59:32,274 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:32,274 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] [2024-10-13 13:59:32,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 13:59:32,474 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 [2024-10-13 13:59:32,475 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:32,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:32,476 INFO L85 PathProgramCache]: Analyzing trace with hash 435493813, now seen corresponding path program 1 times [2024-10-13 13:59:32,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:32,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463762845] [2024-10-13 13:59:32,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:32,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:32,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 13:59:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:32,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 13:59:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:32,573 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-13 13:59:32,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:32,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463762845] [2024-10-13 13:59:32,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463762845] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:32,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459290047] [2024-10-13 13:59:32,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:32,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:32,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:32,580 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) [2024-10-13 13:59:32,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 13:59:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:32,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-13 13:59:32,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:32,881 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 13 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:59:32,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 13:59:33,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459290047] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:33,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:33,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 19, 19] total 24 [2024-10-13 13:59:33,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745826374] [2024-10-13 13:59:33,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:33,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-13 13:59:33,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:33,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-13 13:59:33,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2024-10-13 13:59:33,151 INFO L87 Difference]: Start difference. First operand 190 states and 244 transitions. Second operand has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 17 states have internal predecessors, (72), 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) [2024-10-13 13:59:33,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:33,709 INFO L93 Difference]: Finished difference Result 405 states and 524 transitions. [2024-10-13 13:59:33,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-13 13:59:33,710 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 17 states have internal predecessors, (72), 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 59 [2024-10-13 13:59:33,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:33,712 INFO L225 Difference]: With dead ends: 405 [2024-10-13 13:59:33,713 INFO L226 Difference]: Without dead ends: 235 [2024-10-13 13:59:33,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 95 SyntacticMatches, 16 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2024-10-13 13:59:33,715 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 200 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:33,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 954 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:59:33,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-10-13 13:59:33,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 212. [2024-10-13 13:59:33,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 166 states have (on average 1.1506024096385543) internal successors, (191), 167 states have internal predecessors, (191), 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) [2024-10-13 13:59:33,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 273 transitions. [2024-10-13 13:59:33,730 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 273 transitions. Word has length 59 [2024-10-13 13:59:33,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:33,730 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 273 transitions. [2024-10-13 13:59:33,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 17 states have internal predecessors, (72), 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) [2024-10-13 13:59:33,730 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 273 transitions. [2024-10-13 13:59:33,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-13 13:59:33,731 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:33,731 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] [2024-10-13 13:59:33,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 13:59:33,932 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 [2024-10-13 13:59:33,933 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:33,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:33,933 INFO L85 PathProgramCache]: Analyzing trace with hash 230249091, now seen corresponding path program 2 times [2024-10-13 13:59:33,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:33,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626931508] [2024-10-13 13:59:33,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:33,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 13:59:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-13 13:59:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-13 13:59:34,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:34,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626931508] [2024-10-13 13:59:34,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626931508] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:34,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14415798] [2024-10-13 13:59:34,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:59:34,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:34,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:34,024 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) [2024-10-13 13:59:34,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 13:59:34,057 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:59:34,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:59:34,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:59:34,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:34,085 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-13 13:59:34,085 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:59:34,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14415798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:34,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:59:34,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-10-13 13:59:34,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126254963] [2024-10-13 13:59:34,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:34,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:59:34,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:34,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:59:34,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:59:34,087 INFO L87 Difference]: Start difference. First operand 212 states and 273 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-10-13 13:59:34,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:34,106 INFO L93 Difference]: Finished difference Result 225 states and 293 transitions. [2024-10-13 13:59:34,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:59:34,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 59 [2024-10-13 13:59:34,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:34,108 INFO L225 Difference]: With dead ends: 225 [2024-10-13 13:59:34,108 INFO L226 Difference]: Without dead ends: 224 [2024-10-13 13:59:34,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:59:34,109 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 4 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 101 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 [2024-10-13 13:59:34,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 101 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:59:34,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-10-13 13:59:34,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 220. [2024-10-13 13:59:34,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 174 states have (on average 1.1436781609195403) internal successors, (199), 171 states have internal predecessors, (199), 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) [2024-10-13 13:59:34,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 281 transitions. [2024-10-13 13:59:34,125 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 281 transitions. Word has length 59 [2024-10-13 13:59:34,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:34,125 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 281 transitions. [2024-10-13 13:59:34,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-10-13 13:59:34,125 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 281 transitions. [2024-10-13 13:59:34,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-13 13:59:34,126 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:34,126 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] [2024-10-13 13:59:34,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 13:59:34,326 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 [2024-10-13 13:59:34,327 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:34,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:34,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1452212672, now seen corresponding path program 1 times [2024-10-13 13:59:34,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:34,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321612180] [2024-10-13 13:59:34,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:34,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 13:59:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-13 13:59:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,390 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-13 13:59:34,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:34,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321612180] [2024-10-13 13:59:34,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321612180] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:34,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430003318] [2024-10-13 13:59:34,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:34,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:34,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:34,392 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) [2024-10-13 13:59:34,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 13:59:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 13:59:34,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:34,461 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-13 13:59:34,462 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:59:34,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430003318] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:34,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:59:34,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-10-13 13:59:34,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518325260] [2024-10-13 13:59:34,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:34,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 13:59:34,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:34,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 13:59:34,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:59:34,463 INFO L87 Difference]: Start difference. First operand 220 states and 281 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2024-10-13 13:59:34,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:34,487 INFO L93 Difference]: Finished difference Result 236 states and 302 transitions. [2024-10-13 13:59:34,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 13:59:34,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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 [2024-10-13 13:59:34,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:34,489 INFO L225 Difference]: With dead ends: 236 [2024-10-13 13:59:34,489 INFO L226 Difference]: Without dead ends: 235 [2024-10-13 13:59:34,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:59:34,489 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:34,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 110 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:59:34,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-10-13 13:59:34,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 216. [2024-10-13 13:59:34,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 171 states have (on average 1.1461988304093567) internal successors, (196), 168 states have internal predecessors, (196), 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) [2024-10-13 13:59:34,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 274 transitions. [2024-10-13 13:59:34,501 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 274 transitions. Word has length 60 [2024-10-13 13:59:34,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:34,502 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 274 transitions. [2024-10-13 13:59:34,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2024-10-13 13:59:34,502 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 274 transitions. [2024-10-13 13:59:34,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-13 13:59:34,502 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:34,503 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:59:34,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-13 13:59:34,703 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 [2024-10-13 13:59:34,704 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:34,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:34,704 INFO L85 PathProgramCache]: Analyzing trace with hash -619314417, now seen corresponding path program 1 times [2024-10-13 13:59:34,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:34,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092716294] [2024-10-13 13:59:34,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:34,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-13 13:59:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 13:59:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-10-13 13:59:34,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:34,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092716294] [2024-10-13 13:59:34,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092716294] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:34,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:59:34,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:59:34,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906821205] [2024-10-13 13:59:34,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:34,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:59:34,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:34,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:59:34,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:59:34,772 INFO L87 Difference]: Start difference. First operand 216 states and 274 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) [2024-10-13 13:59:34,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:34,797 INFO L93 Difference]: Finished difference Result 226 states and 286 transitions. [2024-10-13 13:59:34,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:59:34,797 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 67 [2024-10-13 13:59:34,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:34,798 INFO L225 Difference]: With dead ends: 226 [2024-10-13 13:59:34,800 INFO L226 Difference]: Without dead ends: 225 [2024-10-13 13:59:34,800 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 [2024-10-13 13:59:34,802 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 2 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:34,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 137 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:59:34,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-10-13 13:59:34,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 210. [2024-10-13 13:59:34,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 167 states have (on average 1.1497005988023952) internal successors, (192), 163 states have internal predecessors, (192), 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) [2024-10-13 13:59:34,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 261 transitions. [2024-10-13 13:59:34,812 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 261 transitions. Word has length 67 [2024-10-13 13:59:34,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:34,813 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 261 transitions. [2024-10-13 13:59:34,813 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) [2024-10-13 13:59:34,813 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 261 transitions. [2024-10-13 13:59:34,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-13 13:59:34,814 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:34,814 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] [2024-10-13 13:59:34,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 13:59:34,814 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:34,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:34,815 INFO L85 PathProgramCache]: Analyzing trace with hash 802608651, now seen corresponding path program 1 times [2024-10-13 13:59:34,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:34,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203965216] [2024-10-13 13:59:34,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:34,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 13:59:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-13 13:59:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 13:59:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,870 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-13 13:59:34,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:34,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203965216] [2024-10-13 13:59:34,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203965216] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:34,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652580112] [2024-10-13 13:59:34,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:34,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:34,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:34,872 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) [2024-10-13 13:59:34,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 13:59:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:34,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-13 13:59:34,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:35,106 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 58 proven. 43 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 13:59:35,107 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:35,336 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 58 proven. 43 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 13:59:35,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652580112] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:35,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:35,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 19, 19] total 23 [2024-10-13 13:59:35,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472414973] [2024-10-13 13:59:35,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:35,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 13:59:35,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:35,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 13:59:35,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2024-10-13 13:59:35,338 INFO L87 Difference]: Start difference. First operand 210 states and 261 transitions. Second operand has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 16 states have internal predecessors, (83), 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) [2024-10-13 13:59:35,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:35,953 INFO L93 Difference]: Finished difference Result 582 states and 774 transitions. [2024-10-13 13:59:35,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-13 13:59:35,953 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 16 states have internal predecessors, (83), 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 78 [2024-10-13 13:59:35,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:35,955 INFO L225 Difference]: With dead ends: 582 [2024-10-13 13:59:35,955 INFO L226 Difference]: Without dead ends: 392 [2024-10-13 13:59:35,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 136 SyntacticMatches, 16 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=1376, Unknown=0, NotChecked=0, Total=1640 [2024-10-13 13:59:35,957 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 340 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:35,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 284 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:59:35,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-10-13 13:59:35,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 361. [2024-10-13 13:59:35,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 289 states have (on average 1.1418685121107266) internal successors, (330), 280 states have internal predecessors, (330), 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) [2024-10-13 13:59:35,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 452 transitions. [2024-10-13 13:59:35,970 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 452 transitions. Word has length 78 [2024-10-13 13:59:35,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:35,971 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 452 transitions. [2024-10-13 13:59:35,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 16 states have internal predecessors, (83), 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) [2024-10-13 13:59:35,971 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 452 transitions. [2024-10-13 13:59:35,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-13 13:59:35,971 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:35,972 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] [2024-10-13 13:59:35,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-13 13:59:36,174 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,SelfDestructingSolverStorable15 [2024-10-13 13:59:36,174 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:36,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:36,175 INFO L85 PathProgramCache]: Analyzing trace with hash 467260402, now seen corresponding path program 1 times [2024-10-13 13:59:36,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:36,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178833695] [2024-10-13 13:59:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:36,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 13:59:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:59:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,217 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-10-13 13:59:36,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:36,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178833695] [2024-10-13 13:59:36,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178833695] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:36,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:59:36,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:59:36,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857620349] [2024-10-13 13:59:36,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:36,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:59:36,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:36,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:59:36,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:59:36,218 INFO L87 Difference]: Start difference. First operand 361 states and 452 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) [2024-10-13 13:59:36,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:36,245 INFO L93 Difference]: Finished difference Result 389 states and 491 transitions. [2024-10-13 13:59:36,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:59:36,246 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 73 [2024-10-13 13:59:36,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:36,247 INFO L225 Difference]: With dead ends: 389 [2024-10-13 13:59:36,247 INFO L226 Difference]: Without dead ends: 388 [2024-10-13 13:59:36,248 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 [2024-10-13 13:59:36,248 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 2 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:36,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 101 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:59:36,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-10-13 13:59:36,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 374. [2024-10-13 13:59:36,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 300 states have (on average 1.1366666666666667) internal successors, (341), 290 states have internal predecessors, (341), 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) [2024-10-13 13:59:36,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 472 transitions. [2024-10-13 13:59:36,263 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 472 transitions. Word has length 73 [2024-10-13 13:59:36,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:36,264 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 472 transitions. [2024-10-13 13:59:36,264 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) [2024-10-13 13:59:36,264 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 472 transitions. [2024-10-13 13:59:36,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-13 13:59:36,264 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:36,265 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] [2024-10-13 13:59:36,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 13:59:36,265 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:36,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:36,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1967908767, now seen corresponding path program 1 times [2024-10-13 13:59:36,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:36,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316486191] [2024-10-13 13:59:36,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:36,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 13:59:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:59:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,361 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-10-13 13:59:36,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:36,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316486191] [2024-10-13 13:59:36,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316486191] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:36,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:59:36,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 13:59:36,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754566593] [2024-10-13 13:59:36,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:36,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 13:59:36,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:36,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 13:59:36,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:59:36,363 INFO L87 Difference]: Start difference. First operand 374 states and 472 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 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) [2024-10-13 13:59:36,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:36,440 INFO L93 Difference]: Finished difference Result 476 states and 621 transitions. [2024-10-13 13:59:36,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 13:59:36,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 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 74 [2024-10-13 13:59:36,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:36,442 INFO L225 Difference]: With dead ends: 476 [2024-10-13 13:59:36,442 INFO L226 Difference]: Without dead ends: 475 [2024-10-13 13:59:36,442 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 [2024-10-13 13:59:36,443 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 6 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:36,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 279 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:59:36,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-10-13 13:59:36,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 400. [2024-10-13 13:59:36,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 319 states have (on average 1.128526645768025) internal successors, (360), 311 states have internal predecessors, (360), 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) [2024-10-13 13:59:36,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 519 transitions. [2024-10-13 13:59:36,477 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 519 transitions. Word has length 74 [2024-10-13 13:59:36,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:36,477 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 519 transitions. [2024-10-13 13:59:36,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 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) [2024-10-13 13:59:36,477 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 519 transitions. [2024-10-13 13:59:36,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-13 13:59:36,478 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:36,478 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:59:36,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 13:59:36,478 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:36,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:36,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1864596262, now seen corresponding path program 1 times [2024-10-13 13:59:36,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:36,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192969492] [2024-10-13 13:59:36,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:36,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-13 13:59:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 13:59:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 13:59:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,528 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-10-13 13:59:36,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:36,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192969492] [2024-10-13 13:59:36,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192969492] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:36,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232051456] [2024-10-13 13:59:36,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:36,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:36,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:36,530 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) [2024-10-13 13:59:36,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 13:59:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:36,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-13 13:59:36,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:36,766 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-13 13:59:36,766 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:59:36,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232051456] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:36,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:59:36,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4] total 24 [2024-10-13 13:59:36,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49821543] [2024-10-13 13:59:36,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:36,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-13 13:59:36,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:36,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-13 13:59:36,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-10-13 13:59:36,769 INFO L87 Difference]: Start difference. First operand 400 states and 519 transitions. Second operand has 21 states, 20 states have (on average 3.4) internal successors, (68), 11 states have internal predecessors, (68), 10 states have call successors, (13), 10 states have call predecessors, (13), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-13 13:59:37,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:37,078 INFO L93 Difference]: Finished difference Result 775 states and 1041 transitions. [2024-10-13 13:59:37,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 13:59:37,079 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.4) internal successors, (68), 11 states have internal predecessors, (68), 10 states have call successors, (13), 10 states have call predecessors, (13), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 95 [2024-10-13 13:59:37,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:37,080 INFO L225 Difference]: With dead ends: 775 [2024-10-13 13:59:37,081 INFO L226 Difference]: Without dead ends: 432 [2024-10-13 13:59:37,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=894, Unknown=0, NotChecked=0, Total=1056 [2024-10-13 13:59:37,083 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 294 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:37,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 288 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:59:37,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-10-13 13:59:37,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 423. [2024-10-13 13:59:37,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 336 states have (on average 1.1279761904761905) internal successors, (379), 330 states have internal predecessors, (379), 50 states have call successors, (50), 20 states have call predecessors, (50), 33 states have return successors, (113), 72 states have call predecessors, (113), 49 states have call successors, (113) [2024-10-13 13:59:37,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 542 transitions. [2024-10-13 13:59:37,098 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 542 transitions. Word has length 95 [2024-10-13 13:59:37,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:37,098 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 542 transitions. [2024-10-13 13:59:37,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.4) internal successors, (68), 11 states have internal predecessors, (68), 10 states have call successors, (13), 10 states have call predecessors, (13), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-13 13:59:37,098 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 542 transitions. [2024-10-13 13:59:37,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-13 13:59:37,099 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:37,099 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] [2024-10-13 13:59:37,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-13 13:59:37,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:37,304 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:37,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:37,305 INFO L85 PathProgramCache]: Analyzing trace with hash 152580629, now seen corresponding path program 1 times [2024-10-13 13:59:37,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:37,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311221662] [2024-10-13 13:59:37,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:37,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:37,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 13:59:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:37,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:37,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 13:59:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:37,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-13 13:59:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:37,350 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-10-13 13:59:37,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:37,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311221662] [2024-10-13 13:59:37,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311221662] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:59:37,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:59:37,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:59:37,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221310287] [2024-10-13 13:59:37,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:59:37,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:59:37,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:37,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:59:37,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:59:37,352 INFO L87 Difference]: Start difference. First operand 423 states and 542 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-10-13 13:59:37,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:37,378 INFO L93 Difference]: Finished difference Result 437 states and 558 transitions. [2024-10-13 13:59:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:59:37,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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 78 [2024-10-13 13:59:37,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:37,380 INFO L225 Difference]: With dead ends: 437 [2024-10-13 13:59:37,380 INFO L226 Difference]: Without dead ends: 436 [2024-10-13 13:59:37,380 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 [2024-10-13 13:59:37,381 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:37,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 137 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:59:37,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-10-13 13:59:37,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 423. [2024-10-13 13:59:37,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 336 states have (on average 1.1220238095238095) internal successors, (377), 330 states have internal predecessors, (377), 50 states have call successors, (50), 20 states have call predecessors, (50), 33 states have return successors, (113), 72 states have call predecessors, (113), 49 states have call successors, (113) [2024-10-13 13:59:37,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 540 transitions. [2024-10-13 13:59:37,396 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 540 transitions. Word has length 78 [2024-10-13 13:59:37,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:37,396 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 540 transitions. [2024-10-13 13:59:37,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-10-13 13:59:37,397 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 540 transitions. [2024-10-13 13:59:37,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-13 13:59:37,398 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:37,398 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] [2024-10-13 13:59:37,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 13:59:37,398 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:37,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:37,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1391651311, now seen corresponding path program 1 times [2024-10-13 13:59:37,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:37,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559739809] [2024-10-13 13:59:37,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:37,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:37,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:59:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:37,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:37,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:37,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:37,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:37,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-13 13:59:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 11 proven. 80 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-13 13:59:37,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:37,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559739809] [2024-10-13 13:59:37,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559739809] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:37,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8833564] [2024-10-13 13:59:37,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:37,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:37,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:37,664 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) [2024-10-13 13:59:37,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-13 13:59:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:37,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 13:59:37,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:37,781 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 34 proven. 73 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-13 13:59:37,781 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 14 proven. 83 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-13 13:59:38,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8833564] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:38,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:38,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 24 [2024-10-13 13:59:38,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644633301] [2024-10-13 13:59:38,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:38,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-13 13:59:38,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:38,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-13 13:59:38,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-10-13 13:59:38,014 INFO L87 Difference]: Start difference. First operand 423 states and 540 transitions. Second operand has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 19 states have internal predecessors, (100), 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) [2024-10-13 13:59:38,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:38,418 INFO L93 Difference]: Finished difference Result 832 states and 1125 transitions. [2024-10-13 13:59:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-13 13:59:38,419 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 19 states have internal predecessors, (100), 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 87 [2024-10-13 13:59:38,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:38,421 INFO L225 Difference]: With dead ends: 832 [2024-10-13 13:59:38,421 INFO L226 Difference]: Without dead ends: 484 [2024-10-13 13:59:38,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 175 SyntacticMatches, 13 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2024-10-13 13:59:38,425 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 160 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:38,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 805 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:59:38,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-10-13 13:59:38,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 431. [2024-10-13 13:59:38,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 342 states have (on average 1.1198830409356726) internal successors, (383), 336 states have internal predecessors, (383), 52 states have call successors, (52), 20 states have call predecessors, (52), 33 states have return successors, (111), 74 states have call predecessors, (111), 51 states have call successors, (111) [2024-10-13 13:59:38,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 546 transitions. [2024-10-13 13:59:38,446 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 546 transitions. Word has length 87 [2024-10-13 13:59:38,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:38,446 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 546 transitions. [2024-10-13 13:59:38,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 19 states have internal predecessors, (100), 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) [2024-10-13 13:59:38,446 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 546 transitions. [2024-10-13 13:59:38,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-13 13:59:38,447 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:38,447 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] [2024-10-13 13:59:38,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-13 13:59:38,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-13 13:59:38,648 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:38,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:38,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1057917660, now seen corresponding path program 1 times [2024-10-13 13:59:38,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:38,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548768467] [2024-10-13 13:59:38,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:38,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:38,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:59:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:38,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:38,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:38,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:38,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:38,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-13 13:59:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:38,806 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-13 13:59:38,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:38,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548768467] [2024-10-13 13:59:38,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548768467] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:38,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816566793] [2024-10-13 13:59:38,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:38,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:38,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:38,808 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) [2024-10-13 13:59:38,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-13 13:59:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:38,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-13 13:59:38,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:38,911 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-13 13:59:38,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:39,051 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-13 13:59:39,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816566793] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:39,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:39,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 17 [2024-10-13 13:59:39,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603143493] [2024-10-13 13:59:39,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:39,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-13 13:59:39,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:39,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-13 13:59:39,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-10-13 13:59:39,053 INFO L87 Difference]: Start difference. First operand 431 states and 546 transitions. Second operand has 17 states, 16 states have (on average 4.3125) internal successors, (69), 12 states have internal predecessors, (69), 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) [2024-10-13 13:59:39,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:39,289 INFO L93 Difference]: Finished difference Result 780 states and 988 transitions. [2024-10-13 13:59:39,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 13:59:39,289 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.3125) internal successors, (69), 12 states have internal predecessors, (69), 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 88 [2024-10-13 13:59:39,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:39,291 INFO L225 Difference]: With dead ends: 780 [2024-10-13 13:59:39,291 INFO L226 Difference]: Without dead ends: 435 [2024-10-13 13:59:39,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 177 SyntacticMatches, 12 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-10-13 13:59:39,294 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 126 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:39,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 567 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:59:39,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-10-13 13:59:39,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 425. [2024-10-13 13:59:39,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 336 states have (on average 1.1220238095238095) internal successors, (377), 333 states have internal predecessors, (377), 52 states have call successors, (52), 20 states have call predecessors, (52), 33 states have return successors, (108), 71 states have call predecessors, (108), 51 states have call successors, (108) [2024-10-13 13:59:39,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 537 transitions. [2024-10-13 13:59:39,311 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 537 transitions. Word has length 88 [2024-10-13 13:59:39,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:39,311 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 537 transitions. [2024-10-13 13:59:39,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.3125) internal successors, (69), 12 states have internal predecessors, (69), 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) [2024-10-13 13:59:39,312 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 537 transitions. [2024-10-13 13:59:39,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-13 13:59:39,313 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:39,313 INFO L215 NwaCegarLoop]: trace histogram [7, 5, 5, 5, 5, 5, 5, 4, 4, 3, 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] [2024-10-13 13:59:39,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-13 13:59:39,513 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 [2024-10-13 13:59:39,514 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:39,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:39,515 INFO L85 PathProgramCache]: Analyzing trace with hash 167224997, now seen corresponding path program 1 times [2024-10-13 13:59:39,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:39,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592780537] [2024-10-13 13:59:39,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:39,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:39,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 13:59:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:39,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:39,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:39,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:59:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:39,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:39,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 13:59:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:39,748 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 50 proven. 63 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-13 13:59:39,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:39,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592780537] [2024-10-13 13:59:39,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592780537] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:39,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007655085] [2024-10-13 13:59:39,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:39,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:39,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:39,752 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) [2024-10-13 13:59:39,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-13 13:59:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:39,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:59:39,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:39,995 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-13 13:59:39,996 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:40,209 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-10-13 13:59:40,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007655085] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:40,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:40,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8, 7] total 31 [2024-10-13 13:59:40,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880604065] [2024-10-13 13:59:40,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:40,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-13 13:59:40,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:40,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-13 13:59:40,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2024-10-13 13:59:40,213 INFO L87 Difference]: Start difference. First operand 425 states and 537 transitions. Second operand has 31 states, 30 states have (on average 3.2666666666666666) internal successors, (98), 25 states have internal predecessors, (98), 13 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-13 13:59:41,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:41,276 INFO L93 Difference]: Finished difference Result 886 states and 1216 transitions. [2024-10-13 13:59:41,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-13 13:59:41,276 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.2666666666666666) internal successors, (98), 25 states have internal predecessors, (98), 13 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) Word has length 91 [2024-10-13 13:59:41,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:41,279 INFO L225 Difference]: With dead ends: 886 [2024-10-13 13:59:41,279 INFO L226 Difference]: Without dead ends: 536 [2024-10-13 13:59:41,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 186 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1102 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=612, Invalid=4080, Unknown=0, NotChecked=0, Total=4692 [2024-10-13 13:59:41,283 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 274 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:41,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 407 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 13:59:41,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-10-13 13:59:41,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 443. [2024-10-13 13:59:41,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 349 states have (on average 1.1117478510028653) internal successors, (388), 348 states have internal predecessors, (388), 55 states have call successors, (55), 20 states have call predecessors, (55), 35 states have return successors, (121), 74 states have call predecessors, (121), 54 states have call successors, (121) [2024-10-13 13:59:41,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 564 transitions. [2024-10-13 13:59:41,332 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 564 transitions. Word has length 91 [2024-10-13 13:59:41,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:41,333 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 564 transitions. [2024-10-13 13:59:41,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.2666666666666666) internal successors, (98), 25 states have internal predecessors, (98), 13 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-13 13:59:41,333 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 564 transitions. [2024-10-13 13:59:41,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-13 13:59:41,338 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:41,338 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] [2024-10-13 13:59:41,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-13 13:59:41,539 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 [2024-10-13 13:59:41,539 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:41,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:41,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1584218804, now seen corresponding path program 1 times [2024-10-13 13:59:41,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:41,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285074059] [2024-10-13 13:59:41,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:41,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:41,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 13:59:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:41,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:41,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:41,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 13:59:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:41,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 13:59:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:41,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 13:59:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 41 proven. 73 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-13 13:59:41,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:41,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285074059] [2024-10-13 13:59:41,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285074059] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:41,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180604200] [2024-10-13 13:59:41,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:41,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:41,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:41,793 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) [2024-10-13 13:59:41,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-13 13:59:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:41,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 13:59:41,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:41,967 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-10-13 13:59:41,968 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:42,302 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-10-13 13:59:42,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180604200] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:42,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:42,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9, 11] total 34 [2024-10-13 13:59:42,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001904784] [2024-10-13 13:59:42,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:42,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-13 13:59:42,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:42,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-13 13:59:42,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1022, Unknown=0, NotChecked=0, Total=1122 [2024-10-13 13:59:42,304 INFO L87 Difference]: Start difference. First operand 443 states and 564 transitions. Second operand has 34 states, 33 states have (on average 3.272727272727273) internal successors, (108), 28 states have internal predecessors, (108), 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) [2024-10-13 13:59:43,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:43,746 INFO L93 Difference]: Finished difference Result 1018 states and 1459 transitions. [2024-10-13 13:59:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-10-13 13:59:43,746 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.272727272727273) internal successors, (108), 28 states have internal predecessors, (108), 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 92 [2024-10-13 13:59:43,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:43,750 INFO L225 Difference]: With dead ends: 1018 [2024-10-13 13:59:43,750 INFO L226 Difference]: Without dead ends: 628 [2024-10-13 13:59:43,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 196 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1956 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=929, Invalid=6553, Unknown=0, NotChecked=0, Total=7482 [2024-10-13 13:59:43,754 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 328 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:43,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 393 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 13:59:43,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-10-13 13:59:43,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 520. [2024-10-13 13:59:43,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 412 states have (on average 1.1092233009708738) internal successors, (457), 404 states have internal predecessors, (457), 62 states have call successors, (62), 19 states have call predecessors, (62), 42 states have return successors, (210), 96 states have call predecessors, (210), 61 states have call successors, (210) [2024-10-13 13:59:43,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 729 transitions. [2024-10-13 13:59:43,779 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 729 transitions. Word has length 92 [2024-10-13 13:59:43,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:43,779 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 729 transitions. [2024-10-13 13:59:43,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.272727272727273) internal successors, (108), 28 states have internal predecessors, (108), 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) [2024-10-13 13:59:43,779 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 729 transitions. [2024-10-13 13:59:43,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-13 13:59:43,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:43,780 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] [2024-10-13 13:59:43,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-13 13:59:43,980 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 [2024-10-13 13:59:43,981 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:43,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:43,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1623097427, now seen corresponding path program 1 times [2024-10-13 13:59:43,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:43,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320947849] [2024-10-13 13:59:43,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:43,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:44,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:59:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:44,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:44,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:44,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:44,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:44,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-13 13:59:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:44,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:44,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-13 13:59:44,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:44,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320947849] [2024-10-13 13:59:44,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320947849] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:44,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027693634] [2024-10-13 13:59:44,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:44,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:44,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:44,200 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) [2024-10-13 13:59:44,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-13 13:59:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:44,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 13:59:44,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:44,379 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-10-13 13:59:44,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:44,761 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-10-13 13:59:44,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027693634] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:44,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:44,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 15] total 28 [2024-10-13 13:59:44,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60297967] [2024-10-13 13:59:44,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:44,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-13 13:59:44,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:44,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-13 13:59:44,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=699, Unknown=0, NotChecked=0, Total=812 [2024-10-13 13:59:44,764 INFO L87 Difference]: Start difference. First operand 520 states and 729 transitions. Second operand has 29 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 29 states have internal predecessors, (78), 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) [2024-10-13 13:59:45,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:45,078 INFO L93 Difference]: Finished difference Result 1003 states and 1619 transitions. [2024-10-13 13:59:45,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-13 13:59:45,078 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 29 states have internal predecessors, (78), 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 106 [2024-10-13 13:59:45,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:45,082 INFO L225 Difference]: With dead ends: 1003 [2024-10-13 13:59:45,082 INFO L226 Difference]: Without dead ends: 1001 [2024-10-13 13:59:45,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 211 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=273, Invalid=1533, Unknown=0, NotChecked=0, Total=1806 [2024-10-13 13:59:45,084 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 35 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:45,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 394 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:59:45,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-10-13 13:59:45,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 702. [2024-10-13 13:59:45,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 556 states have (on average 1.0935251798561152) internal successors, (608), 546 states have internal predecessors, (608), 79 states have call successors, (79), 19 states have call predecessors, (79), 63 states have return successors, (351), 136 states have call predecessors, (351), 78 states have call successors, (351) [2024-10-13 13:59:45,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1038 transitions. [2024-10-13 13:59:45,119 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1038 transitions. Word has length 106 [2024-10-13 13:59:45,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:45,119 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 1038 transitions. [2024-10-13 13:59:45,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 29 states have internal predecessors, (78), 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) [2024-10-13 13:59:45,119 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1038 transitions. [2024-10-13 13:59:45,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-13 13:59:45,120 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:45,120 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] [2024-10-13 13:59:45,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-13 13:59:45,324 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 [2024-10-13 13:59:45,325 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:45,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:45,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1223587414, now seen corresponding path program 1 times [2024-10-13 13:59:45,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:45,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344903207] [2024-10-13 13:59:45,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:45,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:45,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:59:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:45,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:45,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:45,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:45,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:45,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-13 13:59:45,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:45,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:45,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:45,537 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-13 13:59:45,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:45,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344903207] [2024-10-13 13:59:45,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344903207] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:45,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465833969] [2024-10-13 13:59:45,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:45,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:45,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:45,539 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) [2024-10-13 13:59:45,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-13 13:59:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:45,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 13:59:45,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:45,690 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-13 13:59:45,690 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:46,057 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-10-13 13:59:46,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465833969] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:46,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:46,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 16] total 26 [2024-10-13 13:59:46,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869084013] [2024-10-13 13:59:46,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:46,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-13 13:59:46,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:46,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-13 13:59:46,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2024-10-13 13:59:46,059 INFO L87 Difference]: Start difference. First operand 702 states and 1038 transitions. Second operand has 27 states, 26 states have (on average 2.8846153846153846) internal successors, (75), 27 states have internal predecessors, (75), 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) [2024-10-13 13:59:46,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:46,309 INFO L93 Difference]: Finished difference Result 1132 states and 1839 transitions. [2024-10-13 13:59:46,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-13 13:59:46,309 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.8846153846153846) internal successors, (75), 27 states have internal predecessors, (75), 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 107 [2024-10-13 13:59:46,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:46,316 INFO L225 Difference]: With dead ends: 1132 [2024-10-13 13:59:46,316 INFO L226 Difference]: Without dead ends: 1130 [2024-10-13 13:59:46,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 213 SyntacticMatches, 7 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=950, Unknown=0, NotChecked=0, Total=1122 [2024-10-13 13:59:46,318 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 22 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:46,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 420 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:59:46,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2024-10-13 13:59:46,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 832. [2024-10-13 13:59:46,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 656 states have (on average 1.0731707317073171) internal successors, (704), 649 states have internal predecessors, (704), 91 states have call successors, (91), 19 states have call predecessors, (91), 81 states have return successors, (580), 163 states have call predecessors, (580), 90 states have call successors, (580) [2024-10-13 13:59:46,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1375 transitions. [2024-10-13 13:59:46,387 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1375 transitions. Word has length 107 [2024-10-13 13:59:46,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:46,388 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 1375 transitions. [2024-10-13 13:59:46,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.8846153846153846) internal successors, (75), 27 states have internal predecessors, (75), 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) [2024-10-13 13:59:46,388 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1375 transitions. [2024-10-13 13:59:46,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-13 13:59:46,390 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:46,390 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] [2024-10-13 13:59:46,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-13 13:59:46,590 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 [2024-10-13 13:59:46,591 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:46,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:46,591 INFO L85 PathProgramCache]: Analyzing trace with hash 840425772, now seen corresponding path program 1 times [2024-10-13 13:59:46,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:46,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648929773] [2024-10-13 13:59:46,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:46,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:46,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 13:59:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:46,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:46,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:46,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:46,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:46,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:46,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 13:59:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:46,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:46,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:46,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-13 13:59:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:46,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:46,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:46,781 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-13 13:59:46,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:46,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648929773] [2024-10-13 13:59:46,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648929773] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:46,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909502764] [2024-10-13 13:59:46,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:46,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:46,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:46,783 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) [2024-10-13 13:59:46,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-13 13:59:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:46,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-13 13:59:46,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:46,902 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-13 13:59:46,902 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:47,140 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-13 13:59:47,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909502764] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:47,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:47,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 20 [2024-10-13 13:59:47,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177316258] [2024-10-13 13:59:47,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:47,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-13 13:59:47,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:47,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-13 13:59:47,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2024-10-13 13:59:47,142 INFO L87 Difference]: Start difference. First operand 832 states and 1375 transitions. Second operand has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 16 states have internal predecessors, (90), 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) [2024-10-13 13:59:47,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:47,507 INFO L93 Difference]: Finished difference Result 1806 states and 3053 transitions. [2024-10-13 13:59:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-13 13:59:47,508 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 16 states have internal predecessors, (90), 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 141 [2024-10-13 13:59:47,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:47,513 INFO L225 Difference]: With dead ends: 1806 [2024-10-13 13:59:47,514 INFO L226 Difference]: Without dead ends: 982 [2024-10-13 13:59:47,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 293 SyntacticMatches, 11 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2024-10-13 13:59:47,518 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 155 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:47,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 488 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:59:47,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2024-10-13 13:59:47,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 936. [2024-10-13 13:59:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 738 states have (on average 1.0745257452574526) internal successors, (793), 731 states have internal predecessors, (793), 103 states have call successors, (103), 22 states have call predecessors, (103), 91 states have return successors, (670), 182 states have call predecessors, (670), 102 states have call successors, (670) [2024-10-13 13:59:47,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1566 transitions. [2024-10-13 13:59:47,592 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1566 transitions. Word has length 141 [2024-10-13 13:59:47,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:47,592 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1566 transitions. [2024-10-13 13:59:47,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 16 states have internal predecessors, (90), 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) [2024-10-13 13:59:47,592 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1566 transitions. [2024-10-13 13:59:47,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-13 13:59:47,594 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:47,594 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 8, 8, 7, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1] [2024-10-13 13:59:47,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-13 13:59:47,798 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 [2024-10-13 13:59:47,799 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:47,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:47,799 INFO L85 PathProgramCache]: Analyzing trace with hash -2121784654, now seen corresponding path program 2 times [2024-10-13 13:59:47,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:47,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353768564] [2024-10-13 13:59:47,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:47,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:47,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 13:59:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:47,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:47,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:47,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:47,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:47,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:47,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 13:59:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:47,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:47,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:47,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-13 13:59:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:47,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:48,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:48,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:48,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:48,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:48,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 13:59:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:48,048 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 121 proven. 139 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-10-13 13:59:48,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:48,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353768564] [2024-10-13 13:59:48,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353768564] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:48,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167451531] [2024-10-13 13:59:48,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:59:48,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:48,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:48,052 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) [2024-10-13 13:59:48,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-13 13:59:48,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:59:48,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:59:48,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-13 13:59:48,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:48,251 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 172 proven. 151 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-10-13 13:59:48,255 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:48,846 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 172 proven. 157 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-10-13 13:59:48,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167451531] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:48,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:48,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 19] total 27 [2024-10-13 13:59:48,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101777118] [2024-10-13 13:59:48,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:48,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-13 13:59:48,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:48,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-13 13:59:48,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2024-10-13 13:59:48,848 INFO L87 Difference]: Start difference. First operand 936 states and 1566 transitions. Second operand has 27 states, 26 states have (on average 4.884615384615385) internal successors, (127), 23 states have internal predecessors, (127), 16 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (20), 9 states have call predecessors, (20), 12 states have call successors, (20) [2024-10-13 13:59:49,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:49,276 INFO L93 Difference]: Finished difference Result 1838 states and 3559 transitions. [2024-10-13 13:59:49,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-13 13:59:49,276 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.884615384615385) internal successors, (127), 23 states have internal predecessors, (127), 16 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (20), 9 states have call predecessors, (20), 12 states have call successors, (20) Word has length 179 [2024-10-13 13:59:49,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:49,283 INFO L225 Difference]: With dead ends: 1838 [2024-10-13 13:59:49,283 INFO L226 Difference]: Without dead ends: 975 [2024-10-13 13:59:49,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 370 SyntacticMatches, 13 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=295, Invalid=1511, Unknown=0, NotChecked=0, Total=1806 [2024-10-13 13:59:49,289 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 264 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:49,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 313 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:59:49,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2024-10-13 13:59:49,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 901. [2024-10-13 13:59:49,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 711 states have (on average 1.0731364275668074) internal successors, (763), 703 states have internal predecessors, (763), 99 states have call successors, (99), 24 states have call predecessors, (99), 87 states have return successors, (597), 173 states have call predecessors, (597), 98 states have call successors, (597) [2024-10-13 13:59:49,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1459 transitions. [2024-10-13 13:59:49,339 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1459 transitions. Word has length 179 [2024-10-13 13:59:49,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:49,339 INFO L471 AbstractCegarLoop]: Abstraction has 901 states and 1459 transitions. [2024-10-13 13:59:49,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.884615384615385) internal successors, (127), 23 states have internal predecessors, (127), 16 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (20), 9 states have call predecessors, (20), 12 states have call successors, (20) [2024-10-13 13:59:49,339 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1459 transitions. [2024-10-13 13:59:49,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-13 13:59:49,341 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:49,341 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 8, 8, 7, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1] [2024-10-13 13:59:49,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-10-13 13:59:49,544 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 [2024-10-13 13:59:49,545 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:49,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:49,545 INFO L85 PathProgramCache]: Analyzing trace with hash -2105892728, now seen corresponding path program 3 times [2024-10-13 13:59:49,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:49,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136824542] [2024-10-13 13:59:49,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:49,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 13:59:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 13:59:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-13 13:59:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 13:59:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 13:59:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-13 13:59:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 133 proven. 141 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-10-13 13:59:49,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:49,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136824542] [2024-10-13 13:59:49,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136824542] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:49,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421029514] [2024-10-13 13:59:49,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 13:59:49,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:49,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:49,813 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) [2024-10-13 13:59:49,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-13 13:59:49,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-13 13:59:49,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:59:49,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:59:49,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:49,953 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 151 proven. 6 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-10-13 13:59:49,953 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:50,237 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 151 proven. 6 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-10-13 13:59:50,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421029514] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:50,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:50,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 25 [2024-10-13 13:59:50,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678057778] [2024-10-13 13:59:50,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:50,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-13 13:59:50,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:50,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-13 13:59:50,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2024-10-13 13:59:50,239 INFO L87 Difference]: Start difference. First operand 901 states and 1459 transitions. Second operand has 25 states, 24 states have (on average 4.625) internal successors, (111), 21 states have internal predecessors, (111), 11 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-10-13 13:59:50,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:50,562 INFO L93 Difference]: Finished difference Result 1387 states and 2317 transitions. [2024-10-13 13:59:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-13 13:59:50,562 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.625) internal successors, (111), 21 states have internal predecessors, (111), 11 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 179 [2024-10-13 13:59:50,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:50,565 INFO L225 Difference]: With dead ends: 1387 [2024-10-13 13:59:50,565 INFO L226 Difference]: Without dead ends: 552 [2024-10-13 13:59:50,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 382 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=1184, Unknown=0, NotChecked=0, Total=1406 [2024-10-13 13:59:50,570 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 237 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:50,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 267 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:59:50,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-13 13:59:50,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 503. [2024-10-13 13:59:50,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 396 states have (on average 1.0606060606060606) internal successors, (420), 397 states have internal predecessors, (420), 62 states have call successors, (62), 27 states have call predecessors, (62), 43 states have return successors, (160), 78 states have call predecessors, (160), 61 states have call successors, (160) [2024-10-13 13:59:50,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 642 transitions. [2024-10-13 13:59:50,591 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 642 transitions. Word has length 179 [2024-10-13 13:59:50,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:50,591 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 642 transitions. [2024-10-13 13:59:50,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.625) internal successors, (111), 21 states have internal predecessors, (111), 11 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-10-13 13:59:50,591 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 642 transitions. [2024-10-13 13:59:50,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-13 13:59:50,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:50,592 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] [2024-10-13 13:59:50,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-13 13:59:50,796 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 [2024-10-13 13:59:50,796 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:50,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:50,797 INFO L85 PathProgramCache]: Analyzing trace with hash 581271092, now seen corresponding path program 4 times [2024-10-13 13:59:50,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:50,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582082671] [2024-10-13 13:59:50,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:50,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:50,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 13:59:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:50,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:51,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:51,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:51,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:51,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:51,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 13:59:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:51,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:51,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:51,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-13 13:59:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:51,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:51,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:51,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:51,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:51,151 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-10-13 13:59:51,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:51,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582082671] [2024-10-13 13:59:51,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582082671] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:51,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167788093] [2024-10-13 13:59:51,152 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 13:59:51,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:51,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:51,155 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) [2024-10-13 13:59:51,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-13 13:59:51,220 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 13:59:51,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:59:51,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-13 13:59:51,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:51,376 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-10-13 13:59:51,376 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 74 proven. 54 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-10-13 13:59:52,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167788093] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:52,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:52,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 22] total 36 [2024-10-13 13:59:52,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242636211] [2024-10-13 13:59:52,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:52,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-10-13 13:59:52,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:52,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-10-13 13:59:52,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1152, Unknown=0, NotChecked=0, Total=1332 [2024-10-13 13:59:52,373 INFO L87 Difference]: Start difference. First operand 503 states and 642 transitions. Second operand has 37 states, 36 states have (on average 2.75) internal successors, (99), 37 states have internal predecessors, (99), 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) [2024-10-13 13:59:52,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:52,729 INFO L93 Difference]: Finished difference Result 814 states and 1083 transitions. [2024-10-13 13:59:52,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-13 13:59:52,730 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.75) internal successors, (99), 37 states have internal predecessors, (99), 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 160 [2024-10-13 13:59:52,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:52,733 INFO L225 Difference]: With dead ends: 814 [2024-10-13 13:59:52,734 INFO L226 Difference]: Without dead ends: 797 [2024-10-13 13:59:52,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 324 SyntacticMatches, 16 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1161 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=317, Invalid=2035, Unknown=0, NotChecked=0, Total=2352 [2024-10-13 13:59:52,735 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 30 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:52,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 542 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:59:52,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-10-13 13:59:52,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 615. [2024-10-13 13:59:52,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 484 states have (on average 1.0392561983471074) internal successors, (503), 484 states have internal predecessors, (503), 73 states have call successors, (73), 27 states have call predecessors, (73), 56 states have return successors, (224), 103 states have call predecessors, (224), 72 states have call successors, (224) [2024-10-13 13:59:52,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 800 transitions. [2024-10-13 13:59:52,764 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 800 transitions. Word has length 160 [2024-10-13 13:59:52,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:52,765 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 800 transitions. [2024-10-13 13:59:52,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.75) internal successors, (99), 37 states have internal predecessors, (99), 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) [2024-10-13 13:59:52,765 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 800 transitions. [2024-10-13 13:59:52,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-10-13 13:59:52,766 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:52,766 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 11, 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, 5, 4, 3, 2, 1, 1, 1, 1] [2024-10-13 13:59:52,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-10-13 13:59:52,970 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 [2024-10-13 13:59:52,971 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:52,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:52,971 INFO L85 PathProgramCache]: Analyzing trace with hash 658057111, now seen corresponding path program 2 times [2024-10-13 13:59:52,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:52,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290213815] [2024-10-13 13:59:52,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:52,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:59:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 13:59:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 13:59:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 13:59:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:53,182 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 181 proven. 145 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2024-10-13 13:59:53,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:53,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290213815] [2024-10-13 13:59:53,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290213815] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:53,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597192683] [2024-10-13 13:59:53,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:59:53,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:53,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:53,184 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) [2024-10-13 13:59:53,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-13 13:59:53,270 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:59:53,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:59:53,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 13:59:53,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:53,506 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 373 proven. 179 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-10-13 13:59:53,507 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:54,103 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 107 proven. 282 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-10-13 13:59:54,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597192683] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:54,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:54,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 17] total 33 [2024-10-13 13:59:54,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63103206] [2024-10-13 13:59:54,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:54,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-13 13:59:54,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:54,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-13 13:59:54,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=938, Unknown=0, NotChecked=0, Total=1056 [2024-10-13 13:59:54,107 INFO L87 Difference]: Start difference. First operand 615 states and 800 transitions. Second operand has 33 states, 31 states have (on average 5.612903225806452) internal successors, (174), 27 states have internal predecessors, (174), 20 states have call successors, (32), 8 states have call predecessors, (32), 9 states have return successors, (27), 14 states have call predecessors, (27), 14 states have call successors, (27) [2024-10-13 13:59:54,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:54,783 INFO L93 Difference]: Finished difference Result 1156 states and 1572 transitions. [2024-10-13 13:59:54,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-13 13:59:54,784 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 31 states have (on average 5.612903225806452) internal successors, (174), 27 states have internal predecessors, (174), 20 states have call successors, (32), 8 states have call predecessors, (32), 9 states have return successors, (27), 14 states have call predecessors, (27), 14 states have call successors, (27) Word has length 214 [2024-10-13 13:59:54,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:54,786 INFO L225 Difference]: With dead ends: 1156 [2024-10-13 13:59:54,786 INFO L226 Difference]: Without dead ends: 473 [2024-10-13 13:59:54,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 442 SyntacticMatches, 11 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=358, Invalid=2504, Unknown=0, NotChecked=0, Total=2862 [2024-10-13 13:59:54,790 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 364 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:54,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 685 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:59:54,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-10-13 13:59:54,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 423. [2024-10-13 13:59:54,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 336 states have (on average 1.0535714285714286) internal successors, (354), 334 states have internal predecessors, (354), 49 states have call successors, (49), 28 states have call predecessors, (49), 36 states have return successors, (98), 60 states have call predecessors, (98), 48 states have call successors, (98) [2024-10-13 13:59:54,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 501 transitions. [2024-10-13 13:59:54,808 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 501 transitions. Word has length 214 [2024-10-13 13:59:54,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:54,808 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 501 transitions. [2024-10-13 13:59:54,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 31 states have (on average 5.612903225806452) internal successors, (174), 27 states have internal predecessors, (174), 20 states have call successors, (32), 8 states have call predecessors, (32), 9 states have return successors, (27), 14 states have call predecessors, (27), 14 states have call successors, (27) [2024-10-13 13:59:54,808 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 501 transitions. [2024-10-13 13:59:54,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-10-13 13:59:54,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:54,810 INFO L215 NwaCegarLoop]: trace histogram [16, 14, 13, 11, 10, 10, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1] [2024-10-13 13:59:54,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-13 13:59:55,010 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 [2024-10-13 13:59:55,011 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:55,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:55,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1786618380, now seen corresponding path program 3 times [2024-10-13 13:59:55,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:55,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747540363] [2024-10-13 13:59:55,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:55,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:59:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 13:59:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 13:59:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-13 13:59:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-13 13:59:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 13:59:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:55,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 265 proven. 189 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2024-10-13 13:59:55,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:55,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747540363] [2024-10-13 13:59:55,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747540363] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:55,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053042516] [2024-10-13 13:59:55,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 13:59:55,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:55,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:55,290 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) [2024-10-13 13:59:55,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-13 13:59:55,358 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-13 13:59:55,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:59:55,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-13 13:59:55,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:55,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 328 proven. 20 refuted. 0 times theorem prover too weak. 743 trivial. 0 not checked. [2024-10-13 13:59:55,457 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:59:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 328 proven. 22 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2024-10-13 13:59:55,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053042516] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:59:55,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:59:55,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 11] total 28 [2024-10-13 13:59:55,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943560592] [2024-10-13 13:59:55,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:59:55,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-13 13:59:55,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:59:55,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-13 13:59:55,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2024-10-13 13:59:55,942 INFO L87 Difference]: Start difference. First operand 423 states and 501 transitions. Second operand has 28 states, 27 states have (on average 4.851851851851852) internal successors, (131), 25 states have internal predecessors, (131), 15 states have call successors, (23), 4 states have call predecessors, (23), 7 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2024-10-13 13:59:56,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:59:56,337 INFO L93 Difference]: Finished difference Result 903 states and 1163 transitions. [2024-10-13 13:59:56,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-13 13:59:56,337 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.851851851851852) internal successors, (131), 25 states have internal predecessors, (131), 15 states have call successors, (23), 4 states have call predecessors, (23), 7 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) Word has length 253 [2024-10-13 13:59:56,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:59:56,340 INFO L225 Difference]: With dead ends: 903 [2024-10-13 13:59:56,342 INFO L226 Difference]: Without dead ends: 564 [2024-10-13 13:59:56,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 542 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=207, Invalid=1053, Unknown=0, NotChecked=0, Total=1260 [2024-10-13 13:59:56,344 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 145 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:59:56,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 622 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:59:56,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-10-13 13:59:56,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 506. [2024-10-13 13:59:56,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 402 states have (on average 1.0422885572139304) internal successors, (419), 399 states have internal predecessors, (419), 61 states have call successors, (61), 32 states have call predecessors, (61), 41 states have return successors, (137), 74 states have call predecessors, (137), 60 states have call successors, (137) [2024-10-13 13:59:56,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 617 transitions. [2024-10-13 13:59:56,366 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 617 transitions. Word has length 253 [2024-10-13 13:59:56,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:59:56,367 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 617 transitions. [2024-10-13 13:59:56,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.851851851851852) internal successors, (131), 25 states have internal predecessors, (131), 15 states have call successors, (23), 4 states have call predecessors, (23), 7 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2024-10-13 13:59:56,367 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 617 transitions. [2024-10-13 13:59:56,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-10-13 13:59:56,369 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:59:56,369 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] [2024-10-13 13:59:56,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-10-13 13:59:56,573 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 [2024-10-13 13:59:56,574 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 13:59:56,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:59:56,574 INFO L85 PathProgramCache]: Analyzing trace with hash 2147215575, now seen corresponding path program 4 times [2024-10-13 13:59:56,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:59:56,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583213629] [2024-10-13 13:59:56,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:59:56,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:59:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:56,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:59:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 13:59:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 13:59:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-13 13:59:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 13:59:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 13:59:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 13:59:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 13:59:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:59:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 148 proven. 181 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2024-10-13 13:59:57,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:59:57,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583213629] [2024-10-13 13:59:57,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583213629] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:59:57,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514520865] [2024-10-13 13:59:57,449 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 13:59:57,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:59:57,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:59:57,451 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) [2024-10-13 13:59:57,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-13 13:59:57,547 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 13:59:57,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:59:57,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-10-13 13:59:57,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:59:57,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 148 proven. 181 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2024-10-13 13:59:57,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:00:00,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 218 proven. 160 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2024-10-13 14:00:00,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514520865] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:00:00,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:00:00,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 29] total 47 [2024-10-13 14:00:00,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454960880] [2024-10-13 14:00:00,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:00:00,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-10-13 14:00:00,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:00:00,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-13 14:00:00,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=1969, Unknown=0, NotChecked=0, Total=2256 [2024-10-13 14:00:00,147 INFO L87 Difference]: Start difference. First operand 506 states and 617 transitions. Second operand has 48 states, 47 states have (on average 2.6808510638297873) internal successors, (126), 48 states have internal predecessors, (126), 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) [2024-10-13 14:00:00,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:00:00,386 INFO L93 Difference]: Finished difference Result 607 states and 754 transitions. [2024-10-13 14:00:00,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-13 14:00:00,386 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.6808510638297873) internal successors, (126), 48 states have internal predecessors, (126), 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 252 [2024-10-13 14:00:00,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:00:00,389 INFO L225 Difference]: With dead ends: 607 [2024-10-13 14:00:00,389 INFO L226 Difference]: Without dead ends: 597 [2024-10-13 14:00:00,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 520 SyntacticMatches, 33 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2380 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=427, Invalid=2765, Unknown=0, NotChecked=0, Total=3192 [2024-10-13 14:00:00,391 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 20 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 14:00:00,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 402 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 14:00:00,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-10-13 14:00:00,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 482. [2024-10-13 14:00:00,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 382 states have (on average 1.031413612565445) internal successors, (394), 381 states have internal predecessors, (394), 59 states have call successors, (59), 32 states have call predecessors, (59), 39 states have return successors, (126), 68 states have call predecessors, (126), 58 states have call successors, (126) [2024-10-13 14:00:00,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 579 transitions. [2024-10-13 14:00:00,412 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 579 transitions. Word has length 252 [2024-10-13 14:00:00,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:00:00,413 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 579 transitions. [2024-10-13 14:00:00,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.6808510638297873) internal successors, (126), 48 states have internal predecessors, (126), 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) [2024-10-13 14:00:00,413 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 579 transitions. [2024-10-13 14:00:00,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-10-13 14:00:00,415 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:00:00,415 INFO L215 NwaCegarLoop]: trace histogram [21, 20, 19, 18, 17, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 6, 4, 3, 1, 1, 1] [2024-10-13 14:00:00,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-10-13 14:00:00,619 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 [2024-10-13 14:00:00,620 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 14:00:00,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:00:00,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1945591108, now seen corresponding path program 5 times [2024-10-13 14:00:00,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:00:00,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834023096] [2024-10-13 14:00:00,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:00:00,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:00:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 14:00:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 14:00:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 14:00:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-13 14:00:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 14:00:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:00,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2541 backedges. 594 proven. 203 refuted. 0 times theorem prover too weak. 1744 trivial. 0 not checked. [2024-10-13 14:00:00,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:00:00,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834023096] [2024-10-13 14:00:00,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834023096] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:00:00,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749860720] [2024-10-13 14:00:00,984 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 14:00:00,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:00:00,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:00:00,989 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) [2024-10-13 14:00:00,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-13 14:00:01,133 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2024-10-13 14:00:01,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 14:00:01,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-13 14:00:01,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:00:01,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2541 backedges. 446 proven. 560 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked. [2024-10-13 14:00:01,318 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:00:02,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2541 backedges. 450 proven. 570 refuted. 0 times theorem prover too weak. 1521 trivial. 0 not checked. [2024-10-13 14:00:02,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749860720] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:00:02,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:00:02,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 19] total 35 [2024-10-13 14:00:02,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865997657] [2024-10-13 14:00:02,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:00:02,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-10-13 14:00:02,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:00:02,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-10-13 14:00:02,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1033, Unknown=0, NotChecked=0, Total=1190 [2024-10-13 14:00:02,416 INFO L87 Difference]: Start difference. First operand 482 states and 579 transitions. Second operand has 35 states, 34 states have (on average 5.588235294117647) internal successors, (190), 33 states have internal predecessors, (190), 22 states have call successors, (33), 3 states have call predecessors, (33), 12 states have return successors, (36), 19 states have call predecessors, (36), 20 states have call successors, (36) [2024-10-13 14:00:02,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:00:02,988 INFO L93 Difference]: Finished difference Result 1083 states and 1498 transitions. [2024-10-13 14:00:02,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-13 14:00:02,988 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 5.588235294117647) internal successors, (190), 33 states have internal predecessors, (190), 22 states have call successors, (33), 3 states have call predecessors, (33), 12 states have return successors, (36), 19 states have call predecessors, (36), 20 states have call successors, (36) Word has length 384 [2024-10-13 14:00:02,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:00:02,994 INFO L225 Difference]: With dead ends: 1083 [2024-10-13 14:00:02,994 INFO L226 Difference]: Without dead ends: 689 [2024-10-13 14:00:02,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 873 GetRequests, 818 SyntacticMatches, 9 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=348, Invalid=1908, Unknown=0, NotChecked=0, Total=2256 [2024-10-13 14:00:02,997 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 171 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 14:00:02,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 611 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 14:00:02,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-10-13 14:00:03,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 618. [2024-10-13 14:00:03,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 492 states have (on average 1.024390243902439) internal successors, (504), 487 states have internal predecessors, (504), 77 states have call successors, (77), 42 states have call predecessors, (77), 47 states have return successors, (191), 88 states have call predecessors, (191), 76 states have call successors, (191) [2024-10-13 14:00:03,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 772 transitions. [2024-10-13 14:00:03,028 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 772 transitions. Word has length 384 [2024-10-13 14:00:03,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:00:03,028 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 772 transitions. [2024-10-13 14:00:03,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 5.588235294117647) internal successors, (190), 33 states have internal predecessors, (190), 22 states have call successors, (33), 3 states have call predecessors, (33), 12 states have return successors, (36), 19 states have call predecessors, (36), 20 states have call successors, (36) [2024-10-13 14:00:03,028 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 772 transitions. [2024-10-13 14:00:03,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2024-10-13 14:00:03,031 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:00:03,031 INFO L215 NwaCegarLoop]: trace histogram [25, 24, 21, 20, 19, 19, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 7, 6, 2, 1, 1, 1] [2024-10-13 14:00:03,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-10-13 14:00:03,235 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 [2024-10-13 14:00:03,236 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 14:00:03,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:00:03,236 INFO L85 PathProgramCache]: Analyzing trace with hash 727588390, now seen corresponding path program 6 times [2024-10-13 14:00:03,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:00:03,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058082138] [2024-10-13 14:00:03,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:00:03,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:00:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 14:00:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 14:00:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 14:00:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-13 14:00:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 14:00:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 14:00:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-13 14:00:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:03,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3434 backedges. 608 proven. 362 refuted. 0 times theorem prover too weak. 2464 trivial. 0 not checked. [2024-10-13 14:00:03,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:00:03,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058082138] [2024-10-13 14:00:03,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058082138] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:00:03,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416624730] [2024-10-13 14:00:03,762 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-13 14:00:03,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:00:03,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:00:03,764 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) [2024-10-13 14:00:03,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-13 14:00:03,894 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-10-13 14:00:03,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 14:00:03,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 14:00:03,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:00:03,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3434 backedges. 543 proven. 4 refuted. 0 times theorem prover too weak. 2887 trivial. 0 not checked. [2024-10-13 14:00:03,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:00:04,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3434 backedges. 543 proven. 4 refuted. 0 times theorem prover too weak. 2887 trivial. 0 not checked. [2024-10-13 14:00:04,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416624730] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:00:04,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:00:04,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 25 [2024-10-13 14:00:04,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964096643] [2024-10-13 14:00:04,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:00:04,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-13 14:00:04,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:00:04,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-13 14:00:04,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2024-10-13 14:00:04,611 INFO L87 Difference]: Start difference. First operand 618 states and 772 transitions. Second operand has 25 states, 24 states have (on average 5.125) internal successors, (123), 23 states have internal predecessors, (123), 12 states have call successors, (21), 3 states have call predecessors, (21), 7 states have return successors, (24), 12 states have call predecessors, (24), 10 states have call successors, (24) [2024-10-13 14:00:04,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:00:04,989 INFO L93 Difference]: Finished difference Result 1112 states and 1435 transitions. [2024-10-13 14:00:04,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 14:00:04,992 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.125) internal successors, (123), 23 states have internal predecessors, (123), 12 states have call successors, (21), 3 states have call predecessors, (21), 7 states have return successors, (24), 12 states have call predecessors, (24), 10 states have call successors, (24) Word has length 443 [2024-10-13 14:00:04,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:00:04,996 INFO L225 Difference]: With dead ends: 1112 [2024-10-13 14:00:04,996 INFO L226 Difference]: Without dead ends: 575 [2024-10-13 14:00:05,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1003 GetRequests, 963 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=233, Invalid=1173, Unknown=0, NotChecked=0, Total=1406 [2024-10-13 14:00:05,004 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 127 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 14:00:05,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 452 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 14:00:05,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-10-13 14:00:05,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 558. [2024-10-13 14:00:05,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 444 states have (on average 1.0202702702702702) internal successors, (453), 440 states have internal predecessors, (453), 69 states have call successors, (69), 40 states have call predecessors, (69), 43 states have return successors, (150), 77 states have call predecessors, (150), 68 states have call successors, (150) [2024-10-13 14:00:05,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 672 transitions. [2024-10-13 14:00:05,064 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 672 transitions. Word has length 443 [2024-10-13 14:00:05,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:00:05,065 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 672 transitions. [2024-10-13 14:00:05,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.125) internal successors, (123), 23 states have internal predecessors, (123), 12 states have call successors, (21), 3 states have call predecessors, (21), 7 states have return successors, (24), 12 states have call predecessors, (24), 10 states have call successors, (24) [2024-10-13 14:00:05,065 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 672 transitions. [2024-10-13 14:00:05,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-10-13 14:00:05,070 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:00:05,070 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 21, 20, 18, 18, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 5, 3, 1, 1, 1] [2024-10-13 14:00:05,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-10-13 14:00:05,271 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 [2024-10-13 14:00:05,271 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 14:00:05,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:00:05,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1753604283, now seen corresponding path program 7 times [2024-10-13 14:00:05,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:00:05,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697598282] [2024-10-13 14:00:05,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:00:05,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:00:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 14:00:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 14:00:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 14:00:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-13 14:00:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-13 14:00:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:05,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 758 proven. 352 refuted. 0 times theorem prover too weak. 1994 trivial. 0 not checked. [2024-10-13 14:00:05,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:00:05,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697598282] [2024-10-13 14:00:05,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697598282] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:00:05,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661284097] [2024-10-13 14:00:05,954 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-13 14:00:05,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:00:05,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:00:05,955 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) [2024-10-13 14:00:05,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-13 14:00:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:06,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 14:00:06,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:00:06,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 638 proven. 305 refuted. 0 times theorem prover too weak. 2161 trivial. 0 not checked. [2024-10-13 14:00:06,271 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:00:07,156 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 638 proven. 317 refuted. 0 times theorem prover too weak. 2149 trivial. 0 not checked. [2024-10-13 14:00:07,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661284097] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:00:07,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:00:07,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14, 17] total 30 [2024-10-13 14:00:07,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391125757] [2024-10-13 14:00:07,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:00:07,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-13 14:00:07,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:00:07,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-13 14:00:07,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=749, Unknown=0, NotChecked=0, Total=870 [2024-10-13 14:00:07,158 INFO L87 Difference]: Start difference. First operand 558 states and 672 transitions. Second operand has 30 states, 29 states have (on average 5.482758620689655) internal successors, (159), 28 states have internal predecessors, (159), 21 states have call successors, (28), 3 states have call predecessors, (28), 10 states have return successors, (32), 16 states have call predecessors, (32), 19 states have call successors, (32) [2024-10-13 14:00:07,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:00:07,777 INFO L93 Difference]: Finished difference Result 1038 states and 1281 transitions. [2024-10-13 14:00:07,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-13 14:00:07,778 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 5.482758620689655) internal successors, (159), 28 states have internal predecessors, (159), 21 states have call successors, (28), 3 states have call predecessors, (28), 10 states have return successors, (32), 16 states have call predecessors, (32), 19 states have call successors, (32) Word has length 423 [2024-10-13 14:00:07,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:00:07,783 INFO L225 Difference]: With dead ends: 1038 [2024-10-13 14:00:07,783 INFO L226 Difference]: Without dead ends: 547 [2024-10-13 14:00:07,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 968 GetRequests, 911 SyntacticMatches, 10 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=369, Invalid=1983, Unknown=0, NotChecked=0, Total=2352 [2024-10-13 14:00:07,785 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 126 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 14:00:07,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 604 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 14:00:07,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-10-13 14:00:07,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 512. [2024-10-13 14:00:07,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 408 states have (on average 1.0220588235294117) internal successors, (417), 404 states have internal predecessors, (417), 63 states have call successors, (63), 39 states have call predecessors, (63), 39 states have return successors, (113), 68 states have call predecessors, (113), 62 states have call successors, (113) [2024-10-13 14:00:07,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 593 transitions. [2024-10-13 14:00:07,808 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 593 transitions. Word has length 423 [2024-10-13 14:00:07,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:00:07,808 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 593 transitions. [2024-10-13 14:00:07,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 5.482758620689655) internal successors, (159), 28 states have internal predecessors, (159), 21 states have call successors, (28), 3 states have call predecessors, (28), 10 states have return successors, (32), 16 states have call predecessors, (32), 19 states have call successors, (32) [2024-10-13 14:00:07,809 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 593 transitions. [2024-10-13 14:00:07,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-10-13 14:00:07,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:00:07,810 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] [2024-10-13 14:00:07,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-10-13 14:00:08,011 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 [2024-10-13 14:00:08,011 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 14:00:08,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:00:08,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1566332572, now seen corresponding path program 8 times [2024-10-13 14:00:08,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:00:08,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292934475] [2024-10-13 14:00:08,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:00:08,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:00:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:08,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 14:00:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:08,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 14:00:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 14:00:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-13 14:00:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 14:00:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:09,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 432 proven. 525 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked. [2024-10-13 14:00:09,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:00:09,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292934475] [2024-10-13 14:00:09,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292934475] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:00:09,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978857885] [2024-10-13 14:00:09,649 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 14:00:09,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:00:09,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:00:09,653 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) [2024-10-13 14:00:09,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-10-13 14:00:09,855 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 14:00:09,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 14:00:09,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-10-13 14:00:09,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:00:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 432 proven. 525 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked. [2024-10-13 14:00:10,296 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:00:16,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 585 proven. 468 refuted. 0 times theorem prover too weak. 1749 trivial. 0 not checked. [2024-10-13 14:00:16,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978857885] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:00:16,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:00:16,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 37] total 58 [2024-10-13 14:00:16,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020229685] [2024-10-13 14:00:16,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:00:16,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-10-13 14:00:16,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:00:16,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-10-13 14:00:16,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=3007, Unknown=0, NotChecked=0, Total=3422 [2024-10-13 14:00:16,029 INFO L87 Difference]: Start difference. First operand 512 states and 593 transitions. Second operand has 59 states, 58 states have (on average 2.6379310344827585) internal successors, (153), 59 states have internal predecessors, (153), 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) [2024-10-13 14:00:16,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:00:16,314 INFO L93 Difference]: Finished difference Result 698 states and 849 transitions. [2024-10-13 14:00:16,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-13 14:00:16,315 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.6379310344827585) internal successors, (153), 59 states have internal predecessors, (153), 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 403 [2024-10-13 14:00:16,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:00:16,318 INFO L225 Difference]: With dead ends: 698 [2024-10-13 14:00:16,320 INFO L226 Difference]: Without dead ends: 609 [2024-10-13 14:00:16,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 846 SyntacticMatches, 62 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4907 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=608, Invalid=4222, Unknown=0, NotChecked=0, Total=4830 [2024-10-13 14:00:16,323 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 26 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 14:00:16,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 597 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 14:00:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-10-13 14:00:16,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 520. [2024-10-13 14:00:16,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 415 states have (on average 1.0216867469879518) internal successors, (424), 410 states have internal predecessors, (424), 61 states have call successors, (61), 38 states have call predecessors, (61), 42 states have return successors, (96), 71 states have call predecessors, (96), 60 states have call successors, (96) [2024-10-13 14:00:16,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 581 transitions. [2024-10-13 14:00:16,347 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 581 transitions. Word has length 403 [2024-10-13 14:00:16,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:00:16,347 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 581 transitions. [2024-10-13 14:00:16,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.6379310344827585) internal successors, (153), 59 states have internal predecessors, (153), 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) [2024-10-13 14:00:16,348 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 581 transitions. [2024-10-13 14:00:16,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2024-10-13 14:00:16,349 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:00:16,350 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 21, 20, 17, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 5, 4, 1, 1, 1, 1] [2024-10-13 14:00:16,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-10-13 14:00:16,550 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 [2024-10-13 14:00:16,551 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 14:00:16,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:00:16,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1791619726, now seen corresponding path program 9 times [2024-10-13 14:00:16,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:00:16,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975863867] [2024-10-13 14:00:16,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:00:16,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:00:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 14:00:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 14:00:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 14:00:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-10-13 14:00:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 14:00:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:16,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-13 14:00:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:17,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:17,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:17,018 INFO L134 CoverageAnalysis]: Checked inductivity of 3168 backedges. 982 proven. 316 refuted. 0 times theorem prover too weak. 1870 trivial. 0 not checked. [2024-10-13 14:00:17,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:00:17,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975863867] [2024-10-13 14:00:17,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975863867] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:00:17,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004509583] [2024-10-13 14:00:17,019 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 14:00:17,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:00:17,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:00:17,020 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) [2024-10-13 14:00:17,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-10-13 14:00:17,192 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-13 14:00:17,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 14:00:17,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 14:00:17,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:00:17,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3168 backedges. 414 proven. 4 refuted. 0 times theorem prover too weak. 2750 trivial. 0 not checked. [2024-10-13 14:00:17,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:00:17,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3168 backedges. 414 proven. 4 refuted. 0 times theorem prover too weak. 2750 trivial. 0 not checked. [2024-10-13 14:00:17,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004509583] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:00:17,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:00:17,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 7, 7] total 30 [2024-10-13 14:00:17,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273272036] [2024-10-13 14:00:17,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:00:17,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-13 14:00:17,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:00:17,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-13 14:00:17,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=753, Unknown=0, NotChecked=0, Total=870 [2024-10-13 14:00:17,690 INFO L87 Difference]: Start difference. First operand 520 states and 581 transitions. Second operand has 30 states, 29 states have (on average 4.344827586206897) internal successors, (126), 28 states have internal predecessors, (126), 14 states have call successors, (20), 3 states have call predecessors, (20), 10 states have return successors, (24), 16 states have call predecessors, (24), 12 states have call successors, (24) [2024-10-13 14:00:18,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:00:18,238 INFO L93 Difference]: Finished difference Result 932 states and 1067 transitions. [2024-10-13 14:00:18,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-13 14:00:18,238 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 4.344827586206897) internal successors, (126), 28 states have internal predecessors, (126), 14 states have call successors, (20), 3 states have call predecessors, (20), 10 states have return successors, (24), 16 states have call predecessors, (24), 12 states have call successors, (24) Word has length 426 [2024-10-13 14:00:18,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:00:18,241 INFO L225 Difference]: With dead ends: 932 [2024-10-13 14:00:18,241 INFO L226 Difference]: Without dead ends: 459 [2024-10-13 14:00:18,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 978 GetRequests, 927 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=388, Invalid=2062, Unknown=0, NotChecked=0, Total=2450 [2024-10-13 14:00:18,243 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 185 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 14:00:18,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 427 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 14:00:18,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-10-13 14:00:18,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 431. [2024-10-13 14:00:18,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 345 states have (on average 1.0231884057971015) internal successors, (353), 342 states have internal predecessors, (353), 53 states have call successors, (53), 38 states have call predecessors, (53), 32 states have return successors, (61), 50 states have call predecessors, (61), 52 states have call successors, (61) [2024-10-13 14:00:18,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 467 transitions. [2024-10-13 14:00:18,262 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 467 transitions. Word has length 426 [2024-10-13 14:00:18,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:00:18,262 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 467 transitions. [2024-10-13 14:00:18,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 4.344827586206897) internal successors, (126), 28 states have internal predecessors, (126), 14 states have call successors, (20), 3 states have call predecessors, (20), 10 states have return successors, (24), 16 states have call predecessors, (24), 12 states have call successors, (24) [2024-10-13 14:00:18,263 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 467 transitions. [2024-10-13 14:00:18,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2024-10-13 14:00:18,265 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:00:18,265 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 31, 30, 26, 25, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 11, 9, 6, 6, 1, 1, 1] [2024-10-13 14:00:18,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-10-13 14:00:18,466 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 [2024-10-13 14:00:18,468 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 14:00:18,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:00:18,469 INFO L85 PathProgramCache]: Analyzing trace with hash -418827179, now seen corresponding path program 5 times [2024-10-13 14:00:18,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:00:18,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305560994] [2024-10-13 14:00:18,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:00:18,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:00:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 14:00:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 14:00:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 14:00:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-10-13 14:00:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 14:00:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2024-10-13 14:00:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:18,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 14:00:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 14:00:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:19,136 INFO L134 CoverageAnalysis]: Checked inductivity of 6659 backedges. 1390 proven. 277 refuted. 0 times theorem prover too weak. 4992 trivial. 0 not checked. [2024-10-13 14:00:19,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:00:19,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305560994] [2024-10-13 14:00:19,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305560994] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:00:19,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321122735] [2024-10-13 14:00:19,136 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 14:00:19,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:00:19,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:00:19,139 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) [2024-10-13 14:00:19,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-10-13 14:00:19,404 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2024-10-13 14:00:19,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 14:00:19,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-13 14:00:19,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:00:19,611 INFO L134 CoverageAnalysis]: Checked inductivity of 6659 backedges. 777 proven. 1177 refuted. 0 times theorem prover too weak. 4705 trivial. 0 not checked. [2024-10-13 14:00:19,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:00:21,364 INFO L134 CoverageAnalysis]: Checked inductivity of 6659 backedges. 785 proven. 1193 refuted. 0 times theorem prover too weak. 4681 trivial. 0 not checked. [2024-10-13 14:00:21,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321122735] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:00:21,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:00:21,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16, 21] total 40 [2024-10-13 14:00:21,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514278917] [2024-10-13 14:00:21,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:00:21,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-10-13 14:00:21,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:00:21,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-10-13 14:00:21,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1359, Unknown=0, NotChecked=0, Total=1560 [2024-10-13 14:00:21,367 INFO L87 Difference]: Start difference. First operand 431 states and 467 transitions. Second operand has 40 states, 39 states have (on average 5.589743589743589) internal successors, (218), 39 states have internal predecessors, (218), 25 states have call successors, (38), 2 states have call predecessors, (38), 16 states have return successors, (44), 26 states have call predecessors, (44), 24 states have call successors, (44) [2024-10-13 14:00:21,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:00:21,972 INFO L93 Difference]: Finished difference Result 476 states and 509 transitions. [2024-10-13 14:00:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-13 14:00:21,973 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 5.589743589743589) internal successors, (218), 39 states have internal predecessors, (218), 25 states have call successors, (38), 2 states have call predecessors, (38), 16 states have return successors, (44), 26 states have call predecessors, (44), 24 states have call successors, (44) Word has length 613 [2024-10-13 14:00:21,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:00:21,975 INFO L225 Difference]: With dead ends: 476 [2024-10-13 14:00:21,975 INFO L226 Difference]: Without dead ends: 436 [2024-10-13 14:00:21,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1384 GetRequests, 1318 SyntacticMatches, 10 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1068 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=458, Invalid=2848, Unknown=0, NotChecked=0, Total=3306 [2024-10-13 14:00:21,977 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 203 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 14:00:21,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 838 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 14:00:21,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-10-13 14:00:21,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 422. [2024-10-13 14:00:21,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 338 states have (on average 1.017751479289941) internal successors, (344), 335 states have internal predecessors, (344), 52 states have call successors, (52), 37 states have call predecessors, (52), 31 states have return successors, (58), 49 states have call predecessors, (58), 51 states have call successors, (58) [2024-10-13 14:00:21,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 454 transitions. [2024-10-13 14:00:21,995 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 454 transitions. Word has length 613 [2024-10-13 14:00:21,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:00:21,996 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 454 transitions. [2024-10-13 14:00:21,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 5.589743589743589) internal successors, (218), 39 states have internal predecessors, (218), 25 states have call successors, (38), 2 states have call predecessors, (38), 16 states have return successors, (44), 26 states have call predecessors, (44), 24 states have call successors, (44) [2024-10-13 14:00:21,996 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 454 transitions. [2024-10-13 14:00:21,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2024-10-13 14:00:21,999 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:00:21,999 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] [2024-10-13 14:00:22,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-10-13 14:00:22,199 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 [2024-10-13 14:00:22,200 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-13 14:00:22,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:00:22,201 INFO L85 PathProgramCache]: Analyzing trace with hash 325777454, now seen corresponding path program 6 times [2024-10-13 14:00:22,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:00:22,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533254803] [2024-10-13 14:00:22,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:00:22,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:00:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:24,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 14:00:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:24,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:24,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 14:00:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 14:00:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-10-13 14:00:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 14:00:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2024-10-13 14:00:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 14:00:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:25,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:26,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 14:00:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:26,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:26,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:26,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:26,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:26,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 14:00:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:26,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 14:00:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:26,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 14:00:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:26,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:00:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:00:26,077 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1237 proven. 1440 refuted. 0 times theorem prover too weak. 4877 trivial. 0 not checked. [2024-10-13 14:00:26,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:00:26,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533254803] [2024-10-13 14:00:26,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533254803] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:00:26,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305129878] [2024-10-13 14:00:26,078 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-13 14:00:26,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:00:26,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:00:26,079 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 14:00:26,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-10-13 14:00:26,461 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) [2024-10-13 14:00:26,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 14:00:26,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 133 conjuncts are in the unsatisfiable core [2024-10-13 14:00:26,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:00:27,058 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1237 proven. 1440 refuted. 0 times theorem prover too weak. 4877 trivial. 0 not checked. [2024-10-13 14:00:27,058 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:00:40,111 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1543 proven. 1316 refuted. 0 times theorem prover too weak. 4695 trivial. 0 not checked. [2024-10-13 14:00:40,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305129878] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:00:40,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:00:40,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 46] total 69 [2024-10-13 14:00:40,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774816205] [2024-10-13 14:00:40,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:00:40,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2024-10-13 14:00:40,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:00:40,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2024-10-13 14:00:40,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=569, Invalid=4261, Unknown=0, NotChecked=0, Total=4830 [2024-10-13 14:00:40,114 INFO L87 Difference]: Start difference. First operand 422 states and 454 transitions. Second operand has 70 states, 69 states have (on average 2.608695652173913) internal successors, (180), 70 states have internal predecessors, (180), 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) [2024-10-13 14:00:40,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:00:40,388 INFO L93 Difference]: Finished difference Result 460 states and 496 transitions. [2024-10-13 14:00:40,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-13 14:00:40,389 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 2.608695652173913) internal successors, (180), 70 states have internal predecessors, (180), 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 652 [2024-10-13 14:00:40,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:00:40,390 INFO L225 Difference]: With dead ends: 460 [2024-10-13 14:00:40,390 INFO L226 Difference]: Without dead ends: 0 [2024-10-13 14:00:40,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1573 GetRequests, 1388 SyntacticMatches, 111 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9031 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=665, Invalid=5035, Unknown=0, NotChecked=0, Total=5700 [2024-10-13 14:00:40,393 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 14 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 14:00:40,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 764 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 14:00:40,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-13 14:00:40,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-13 14:00:40,394 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) [2024-10-13 14:00:40,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 14:00:40,395 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 652 [2024-10-13 14:00:40,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:00:40,395 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 14:00:40,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 2.608695652173913) internal successors, (180), 70 states have internal predecessors, (180), 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) [2024-10-13 14:00:40,395 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-13 14:00:40,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-13 14:00:40,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2024-10-13 14:00:40,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2024-10-13 14:00:40,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2024-10-13 14:00:40,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2024-10-13 14:00:40,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2024-10-13 14:00:40,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2024-10-13 14:00:40,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2024-10-13 14:00:40,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2024-10-13 14:00:40,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2024-10-13 14:00:40,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2024-10-13 14:00:40,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2024-10-13 14:00:40,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2024-10-13 14:00:40,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-10-13 14:00:40,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-10-13 14:00:40,604 INFO L407 BasicCegarLoop]: Path program histogram: [9, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:00:40,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-13 14:00:54,957 WARN L286 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 117 DAG size of output: 155 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)