./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/fibo_10-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/fibo_10-2.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 a6546395432109233bf3e1991428a566548dd822bb23ca198622322bf4db5a8a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 17:48:17,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 17:48:17,938 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 17:48:17,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 17:48:17,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 17:48:17,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 17:48:17,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 17:48:17,975 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 17:48:17,976 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 17:48:17,976 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 17:48:17,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 17:48:17,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 17:48:17,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 17:48:17,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 17:48:17,981 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 17:48:17,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 17:48:17,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 17:48:17,982 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 17:48:17,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 17:48:17,982 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 17:48:17,982 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 17:48:17,983 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 17:48:17,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 17:48:17,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 17:48:17,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 17:48:17,984 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 17:48:17,985 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 17:48:17,985 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 17:48:17,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 17:48:17,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 17:48:17,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 17:48:17,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 17:48:17,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 17:48:17,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 17:48:17,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:48:17,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 17:48:17,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 17:48:17,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 17:48:17,987 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 17:48:17,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 17:48:17,988 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 17:48:17,988 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 17:48:17,988 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 17:48:17,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 17:48:17,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6546395432109233bf3e1991428a566548dd822bb23ca198622322bf4db5a8a [2024-11-12 17:48:18,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 17:48:18,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 17:48:18,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 17:48:18,287 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 17:48:18,287 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 17:48:18,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_10-2.c [2024-11-12 17:48:19,650 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 17:48:19,857 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 17:48:19,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_10-2.c [2024-11-12 17:48:19,864 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fab0f7f2c/d0309c45de9e4f4aa14e673edde5641f/FLAGa2891b0fe [2024-11-12 17:48:19,881 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fab0f7f2c/d0309c45de9e4f4aa14e673edde5641f [2024-11-12 17:48:19,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 17:48:19,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 17:48:19,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 17:48:19,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 17:48:19,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 17:48:19,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:48:19" (1/1) ... [2024-11-12 17:48:19,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c9ccbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:19, skipping insertion in model container [2024-11-12 17:48:19,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:48:19" (1/1) ... [2024-11-12 17:48:19,917 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 17:48:20,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:48:20,116 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 17:48:20,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:48:20,148 INFO L204 MainTranslator]: Completed translation [2024-11-12 17:48:20,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:20 WrapperNode [2024-11-12 17:48:20,149 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 17:48:20,150 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 17:48:20,150 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 17:48:20,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 17:48:20,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:20" (1/1) ... [2024-11-12 17:48:20,163 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:20" (1/1) ... [2024-11-12 17:48:20,180 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2024-11-12 17:48:20,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 17:48:20,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 17:48:20,182 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 17:48:20,182 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 17:48:20,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:20" (1/1) ... [2024-11-12 17:48:20,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:20" (1/1) ... [2024-11-12 17:48:20,193 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:20" (1/1) ... [2024-11-12 17:48:20,208 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 17:48:20,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:20" (1/1) ... [2024-11-12 17:48:20,209 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:20" (1/1) ... [2024-11-12 17:48:20,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:20" (1/1) ... [2024-11-12 17:48:20,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:20" (1/1) ... [2024-11-12 17:48:20,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:20" (1/1) ... [2024-11-12 17:48:20,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:20" (1/1) ... [2024-11-12 17:48:20,224 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 17:48:20,224 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 17:48:20,224 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 17:48:20,225 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 17:48:20,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:20" (1/1) ... [2024-11-12 17:48:20,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:48:20,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:20,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 17:48:20,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 17:48:20,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 17:48:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 17:48:20,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 17:48:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 17:48:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2024-11-12 17:48:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2024-11-12 17:48:20,372 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 17:48:20,374 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 17:48:20,507 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-12 17:48:20,508 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 17:48:20,519 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 17:48:20,519 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 17:48:20,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:48:20 BoogieIcfgContainer [2024-11-12 17:48:20,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 17:48:20,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 17:48:20,523 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 17:48:20,526 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 17:48:20,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:48:19" (1/3) ... [2024-11-12 17:48:20,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c0fe1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:48:20, skipping insertion in model container [2024-11-12 17:48:20,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:48:20" (2/3) ... [2024-11-12 17:48:20,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c0fe1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:48:20, skipping insertion in model container [2024-11-12 17:48:20,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:48:20" (3/3) ... [2024-11-12 17:48:20,529 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_10-2.c [2024-11-12 17:48:20,546 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 17:48:20,546 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-12 17:48:20,597 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 17:48:20,603 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;@c5ba0a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 17:48:20,604 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-12 17:48:20,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 27 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 17:48:20,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-12 17:48:20,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:20,613 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:20,614 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:48:20,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:20,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1842216079, now seen corresponding path program 1 times [2024-11-12 17:48:20,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:20,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696112937] [2024-11-12 17:48:20,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:20,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:20,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:48:20,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:20,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696112937] [2024-11-12 17:48:20,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696112937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:48:20,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:48:20,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:48:20,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070630429] [2024-11-12 17:48:20,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:48:20,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:48:20,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:20,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:48:20,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:48:20,832 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 27 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:48:20,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:20,872 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2024-11-12 17:48:20,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:48:20,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-12 17:48:20,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:20,880 INFO L225 Difference]: With dead ends: 38 [2024-11-12 17:48:20,880 INFO L226 Difference]: Without dead ends: 24 [2024-11-12 17:48:20,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:48:20,885 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 11 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:20,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 42 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:48:20,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-12 17:48:20,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2024-11-12 17:48:20,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:48:20,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-11-12 17:48:20,915 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 7 [2024-11-12 17:48:20,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:20,916 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-11-12 17:48:20,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:48:20,916 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-11-12 17:48:20,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-12 17:48:20,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:20,917 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:20,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 17:48:20,919 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:48:20,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:20,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1274123662, now seen corresponding path program 1 times [2024-11-12 17:48:20,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:20,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364991674] [2024-11-12 17:48:20,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:20,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:21,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:48:21,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:21,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364991674] [2024-11-12 17:48:21,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364991674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:48:21,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:48:21,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 17:48:21,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091308456] [2024-11-12 17:48:21,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:48:21,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:48:21,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:21,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:48:21,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:48:21,014 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:48:21,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:21,089 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2024-11-12 17:48:21,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:48:21,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-12 17:48:21,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:21,090 INFO L225 Difference]: With dead ends: 24 [2024-11-12 17:48:21,091 INFO L226 Difference]: Without dead ends: 22 [2024-11-12 17:48:21,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:48:21,094 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 26 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:21,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 29 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:48:21,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-12 17:48:21,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2024-11-12 17:48:21,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:48:21,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2024-11-12 17:48:21,103 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 8 [2024-11-12 17:48:21,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:21,103 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-11-12 17:48:21,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:48:21,104 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-11-12 17:48:21,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-12 17:48:21,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:21,105 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:21,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 17:48:21,106 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:48:21,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:21,107 INFO L85 PathProgramCache]: Analyzing trace with hash 572400255, now seen corresponding path program 1 times [2024-11-12 17:48:21,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:21,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627245610] [2024-11-12 17:48:21,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:21,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:21,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:48:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:21,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 17:48:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:21,339 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-12 17:48:21,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:21,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627245610] [2024-11-12 17:48:21,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627245610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:48:21,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:48:21,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 17:48:21,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16151026] [2024-11-12 17:48:21,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:48:21,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:48:21,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:21,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:48:21,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:48:21,345 INFO L87 Difference]: Start difference. First operand 20 states and 23 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) [2024-11-12 17:48:21,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:21,396 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2024-11-12 17:48:21,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:48:21,398 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 23 [2024-11-12 17:48:21,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:21,399 INFO L225 Difference]: With dead ends: 34 [2024-11-12 17:48:21,399 INFO L226 Difference]: Without dead ends: 32 [2024-11-12 17:48:21,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:48:21,401 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:21,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 52 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:48:21,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-12 17:48:21,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2024-11-12 17:48:21,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-12 17:48:21,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2024-11-12 17:48:21,412 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 23 [2024-11-12 17:48:21,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:21,413 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2024-11-12 17:48:21,413 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) [2024-11-12 17:48:21,413 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2024-11-12 17:48:21,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-12 17:48:21,414 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:21,414 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:21,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 17:48:21,415 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:48:21,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:21,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1209322478, now seen corresponding path program 1 times [2024-11-12 17:48:21,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:21,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696613953] [2024-11-12 17:48:21,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:21,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:21,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:21,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-12 17:48:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:21,613 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-12 17:48:21,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:21,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696613953] [2024-11-12 17:48:21,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696613953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:48:21,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698044418] [2024-11-12 17:48:21,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:21,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:21,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:21,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:48:21,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 17:48:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:21,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 17:48:21,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:48:21,848 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:48:21,849 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:48:22,045 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 17:48:22,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698044418] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:48:22,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:48:22,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-12 17:48:22,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318379971] [2024-11-12 17:48:22,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:48:22,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-12 17:48:22,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:22,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-12 17:48:22,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-12 17:48:22,052 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 19 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 9 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-12 17:48:22,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:22,658 INFO L93 Difference]: Finished difference Result 178 states and 258 transitions. [2024-11-12 17:48:22,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-12 17:48:22,658 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 9 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 30 [2024-11-12 17:48:22,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:22,661 INFO L225 Difference]: With dead ends: 178 [2024-11-12 17:48:22,661 INFO L226 Difference]: Without dead ends: 145 [2024-11-12 17:48:22,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2024-11-12 17:48:22,666 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 178 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:22,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 327 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 17:48:22,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-12 17:48:22,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 129. [2024-11-12 17:48:22,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 100 states have (on average 1.11) internal successors, (111), 102 states have internal predecessors, (111), 17 states have call successors, (17), 5 states have call predecessors, (17), 10 states have return successors, (46), 21 states have call predecessors, (46), 16 states have call successors, (46) [2024-11-12 17:48:22,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 174 transitions. [2024-11-12 17:48:22,695 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 174 transitions. Word has length 30 [2024-11-12 17:48:22,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:22,696 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 174 transitions. [2024-11-12 17:48:22,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 9 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-12 17:48:22,696 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 174 transitions. [2024-11-12 17:48:22,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-12 17:48:22,697 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:22,698 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:22,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 17:48:22,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:22,899 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:48:22,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:22,900 INFO L85 PathProgramCache]: Analyzing trace with hash -454582160, now seen corresponding path program 2 times [2024-11-12 17:48:22,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:22,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079758526] [2024-11-12 17:48:22,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:22,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:23,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-12 17:48:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:23,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 17:48:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:23,056 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-12 17:48:23,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:23,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079758526] [2024-11-12 17:48:23,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079758526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:48:23,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442634682] [2024-11-12 17:48:23,058 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:48:23,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:23,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:23,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:48:23,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 17:48:23,113 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:48:23,113 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:48:23,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 17:48:23,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:48:23,168 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-12 17:48:23,168 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:48:23,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442634682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:48:23,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:48:23,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-12 17:48:23,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856800278] [2024-11-12 17:48:23,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:48:23,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:48:23,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:23,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:48:23,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-12 17:48:23,170 INFO L87 Difference]: Start difference. First operand 129 states and 174 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:48:23,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:23,214 INFO L93 Difference]: Finished difference Result 152 states and 210 transitions. [2024-11-12 17:48:23,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:48:23,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2024-11-12 17:48:23,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:23,220 INFO L225 Difference]: With dead ends: 152 [2024-11-12 17:48:23,221 INFO L226 Difference]: Without dead ends: 151 [2024-11-12 17:48:23,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-12 17:48:23,223 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:23,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 61 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:48:23,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-12 17:48:23,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 137. [2024-11-12 17:48:23,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 107 states have (on average 1.102803738317757) internal successors, (118), 107 states have internal predecessors, (118), 17 states have call successors, (17), 5 states have call predecessors, (17), 11 states have return successors, (55), 24 states have call predecessors, (55), 16 states have call successors, (55) [2024-11-12 17:48:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 190 transitions. [2024-11-12 17:48:23,268 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 190 transitions. Word has length 42 [2024-11-12 17:48:23,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:23,269 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 190 transitions. [2024-11-12 17:48:23,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:48:23,271 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 190 transitions. [2024-11-12 17:48:23,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-12 17:48:23,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:23,272 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:23,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 17:48:23,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:23,473 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:48:23,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:23,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1207144999, now seen corresponding path program 1 times [2024-11-12 17:48:23,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:23,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745988894] [2024-11-12 17:48:23,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:23,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:23,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-12 17:48:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:23,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-12 17:48:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:23,572 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-12 17:48:23,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:23,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745988894] [2024-11-12 17:48:23,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745988894] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:48:23,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726325686] [2024-11-12 17:48:23,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:23,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:23,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:23,575 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:48:23,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 17:48:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:23,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-12 17:48:23,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:48:23,824 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 12 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:48:23,825 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:48:24,105 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 17:48:24,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726325686] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:48:24,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:48:24,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 27 [2024-11-12 17:48:24,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363343432] [2024-11-12 17:48:24,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:48:24,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-12 17:48:24,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:24,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-12 17:48:24,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2024-11-12 17:48:24,109 INFO L87 Difference]: Start difference. First operand 137 states and 190 transitions. Second operand has 27 states, 25 states have (on average 3.08) internal successors, (77), 19 states have internal predecessors, (77), 13 states have call successors, (15), 10 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-12 17:48:25,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:25,212 INFO L93 Difference]: Finished difference Result 452 states and 715 transitions. [2024-11-12 17:48:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-12 17:48:25,213 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.08) internal successors, (77), 19 states have internal predecessors, (77), 13 states have call successors, (15), 10 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 43 [2024-11-12 17:48:25,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:25,216 INFO L225 Difference]: With dead ends: 452 [2024-11-12 17:48:25,216 INFO L226 Difference]: Without dead ends: 330 [2024-11-12 17:48:25,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=321, Invalid=1571, Unknown=0, NotChecked=0, Total=1892 [2024-11-12 17:48:25,221 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 263 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:25,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 687 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-12 17:48:25,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-12 17:48:25,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 295. [2024-11-12 17:48:25,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 232 states have (on average 1.0991379310344827) internal successors, (255), 232 states have internal predecessors, (255), 37 states have call successors, (37), 11 states have call predecessors, (37), 24 states have return successors, (109), 51 states have call predecessors, (109), 36 states have call successors, (109) [2024-11-12 17:48:25,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 401 transitions. [2024-11-12 17:48:25,254 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 401 transitions. Word has length 43 [2024-11-12 17:48:25,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:25,255 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 401 transitions. [2024-11-12 17:48:25,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.08) internal successors, (77), 19 states have internal predecessors, (77), 13 states have call successors, (15), 10 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-12 17:48:25,255 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 401 transitions. [2024-11-12 17:48:25,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-12 17:48:25,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:25,257 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:25,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 17:48:25,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:25,462 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:48:25,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:25,462 INFO L85 PathProgramCache]: Analyzing trace with hash 947752740, now seen corresponding path program 1 times [2024-11-12 17:48:25,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:25,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554287420] [2024-11-12 17:48:25,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:25,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:25,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 17:48:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:25,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 17:48:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:25,591 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-12 17:48:25,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:25,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554287420] [2024-11-12 17:48:25,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554287420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:48:25,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:48:25,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 17:48:25,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729715675] [2024-11-12 17:48:25,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:48:25,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:48:25,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:25,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:48:25,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:48:25,593 INFO L87 Difference]: Start difference. First operand 295 states and 401 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:48:25,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:25,642 INFO L93 Difference]: Finished difference Result 309 states and 423 transitions. [2024-11-12 17:48:25,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:48:25,645 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 74 [2024-11-12 17:48:25,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:25,647 INFO L225 Difference]: With dead ends: 309 [2024-11-12 17:48:25,647 INFO L226 Difference]: Without dead ends: 308 [2024-11-12 17:48:25,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:48:25,651 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:25,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 102 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:48:25,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-12 17:48:25,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 302. [2024-11-12 17:48:25,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 238 states have (on average 1.096638655462185) internal successors, (261), 237 states have internal predecessors, (261), 38 states have call successors, (38), 11 states have call predecessors, (38), 24 states have return successors, (115), 53 states have call predecessors, (115), 37 states have call successors, (115) [2024-11-12 17:48:25,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 414 transitions. [2024-11-12 17:48:25,696 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 414 transitions. Word has length 74 [2024-11-12 17:48:25,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:25,697 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 414 transitions. [2024-11-12 17:48:25,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:48:25,698 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 414 transitions. [2024-11-12 17:48:25,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-12 17:48:25,703 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:25,703 INFO L218 NwaCegarLoop]: trace histogram [14, 13, 11, 11, 11, 11, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:25,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 17:48:25,704 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:48:25,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:25,704 INFO L85 PathProgramCache]: Analyzing trace with hash 881506315, now seen corresponding path program 1 times [2024-11-12 17:48:25,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:25,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317220768] [2024-11-12 17:48:25,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:25,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:25,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-12 17:48:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:25,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-12 17:48:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:25,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:25,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:25,816 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2024-11-12 17:48:25,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:25,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317220768] [2024-11-12 17:48:25,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317220768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:48:25,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702322073] [2024-11-12 17:48:25,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:25,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:25,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:25,819 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:48:25,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 17:48:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:25,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-12 17:48:25,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:48:26,264 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 279 proven. 148 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-12 17:48:26,264 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:48:26,722 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 279 proven. 148 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-12 17:48:26,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702322073] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:48:26,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:48:26,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 25, 25] total 32 [2024-11-12 17:48:26,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012111085] [2024-11-12 17:48:26,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:48:26,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-12 17:48:26,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:26,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-12 17:48:26,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=817, Unknown=0, NotChecked=0, Total=992 [2024-11-12 17:48:26,726 INFO L87 Difference]: Start difference. First operand 302 states and 414 transitions. Second operand has 32 states, 30 states have (on average 3.4) internal successors, (102), 21 states have internal predecessors, (102), 16 states have call successors, (22), 12 states have call predecessors, (22), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-12 17:48:27,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:27,686 INFO L93 Difference]: Finished difference Result 598 states and 860 transitions. [2024-11-12 17:48:27,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-12 17:48:27,687 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 3.4) internal successors, (102), 21 states have internal predecessors, (102), 16 states have call successors, (22), 12 states have call predecessors, (22), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 98 [2024-11-12 17:48:27,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:27,689 INFO L225 Difference]: With dead ends: 598 [2024-11-12 17:48:27,689 INFO L226 Difference]: Without dead ends: 307 [2024-11-12 17:48:27,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 165 SyntacticMatches, 19 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 875 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=928, Invalid=2612, Unknown=0, NotChecked=0, Total=3540 [2024-11-12 17:48:27,694 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 559 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:27,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 231 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-12 17:48:27,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-12 17:48:27,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 286. [2024-11-12 17:48:27,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 225 states have (on average 1.0933333333333333) internal successors, (246), 226 states have internal predecessors, (246), 36 states have call successors, (36), 12 states have call predecessors, (36), 23 states have return successors, (68), 47 states have call predecessors, (68), 35 states have call successors, (68) [2024-11-12 17:48:27,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 350 transitions. [2024-11-12 17:48:27,712 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 350 transitions. Word has length 98 [2024-11-12 17:48:27,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:27,713 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 350 transitions. [2024-11-12 17:48:27,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 3.4) internal successors, (102), 21 states have internal predecessors, (102), 16 states have call successors, (22), 12 states have call predecessors, (22), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-12 17:48:27,713 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 350 transitions. [2024-11-12 17:48:27,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-12 17:48:27,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:27,715 INFO L218 NwaCegarLoop]: trace histogram [12, 10, 9, 9, 9, 9, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:27,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 17:48:27,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:27,919 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:48:27,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:27,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1265019303, now seen corresponding path program 1 times [2024-11-12 17:48:27,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:27,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505919273] [2024-11-12 17:48:27,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:27,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:27,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-12 17:48:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:28,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:28,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-12 17:48:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:28,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 17:48:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:28,052 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 45 proven. 9 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-12 17:48:28,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:28,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505919273] [2024-11-12 17:48:28,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505919273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:48:28,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225166323] [2024-11-12 17:48:28,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:28,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:28,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:28,055 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:48:28,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 17:48:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:28,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-12 17:48:28,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:48:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 46 proven. 254 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 17:48:28,389 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:48:28,750 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 9 proven. 286 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-12 17:48:28,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225166323] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:48:28,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:48:28,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 22, 23] total 27 [2024-11-12 17:48:28,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617131415] [2024-11-12 17:48:28,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:48:28,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-12 17:48:28,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:28,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-12 17:48:28,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=550, Unknown=0, NotChecked=0, Total=702 [2024-11-12 17:48:28,753 INFO L87 Difference]: Start difference. First operand 286 states and 350 transitions. Second operand has 27 states, 26 states have (on average 3.423076923076923) internal successors, (89), 19 states have internal predecessors, (89), 15 states have call successors, (17), 10 states have call predecessors, (17), 4 states have return successors, (8), 2 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-12 17:48:29,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:29,183 INFO L93 Difference]: Finished difference Result 462 states and 578 transitions. [2024-11-12 17:48:29,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-12 17:48:29,184 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.423076923076923) internal successors, (89), 19 states have internal predecessors, (89), 15 states have call successors, (17), 10 states have call predecessors, (17), 4 states have return successors, (8), 2 states have call predecessors, (8), 7 states have call successors, (8) Word has length 86 [2024-11-12 17:48:29,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:29,186 INFO L225 Difference]: With dead ends: 462 [2024-11-12 17:48:29,186 INFO L226 Difference]: Without dead ends: 188 [2024-11-12 17:48:29,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 150 SyntacticMatches, 19 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=348, Invalid=984, Unknown=0, NotChecked=0, Total=1332 [2024-11-12 17:48:29,188 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 278 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:29,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 426 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:48:29,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-12 17:48:29,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 175. [2024-11-12 17:48:29,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.1376811594202898) internal successors, (157), 140 states have internal predecessors, (157), 23 states have call successors, (23), 12 states have call predecessors, (23), 12 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-12 17:48:29,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 202 transitions. [2024-11-12 17:48:29,199 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 202 transitions. Word has length 86 [2024-11-12 17:48:29,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:29,199 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 202 transitions. [2024-11-12 17:48:29,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.423076923076923) internal successors, (89), 19 states have internal predecessors, (89), 15 states have call successors, (17), 10 states have call predecessors, (17), 4 states have return successors, (8), 2 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-12 17:48:29,200 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 202 transitions. [2024-11-12 17:48:29,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-12 17:48:29,200 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:29,200 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 9, 9, 9, 9, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:29,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-12 17:48:29,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:29,401 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:48:29,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:29,402 INFO L85 PathProgramCache]: Analyzing trace with hash 893038854, now seen corresponding path program 2 times [2024-11-12 17:48:29,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:29,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195106684] [2024-11-12 17:48:29,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:29,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:29,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-12 17:48:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:29,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:29,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:29,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-12 17:48:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:29,562 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-11-12 17:48:29,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:29,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195106684] [2024-11-12 17:48:29,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195106684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:48:29,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275897250] [2024-11-12 17:48:29,563 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:48:29,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:29,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:29,565 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:48:29,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 17:48:29,616 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:48:29,617 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:48:29,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-12 17:48:29,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:48:29,674 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-11-12 17:48:29,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:48:29,812 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-11-12 17:48:29,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275897250] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:48:29,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:48:29,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2024-11-12 17:48:29,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746131730] [2024-11-12 17:48:29,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:48:29,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 17:48:29,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:29,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 17:48:29,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-12 17:48:29,815 INFO L87 Difference]: Start difference. First operand 175 states and 202 transitions. Second operand has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-12 17:48:29,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:29,867 INFO L93 Difference]: Finished difference Result 176 states and 202 transitions. [2024-11-12 17:48:29,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 17:48:29,868 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2024-11-12 17:48:29,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:29,869 INFO L225 Difference]: With dead ends: 176 [2024-11-12 17:48:29,869 INFO L226 Difference]: Without dead ends: 175 [2024-11-12 17:48:29,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 175 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-12 17:48:29,870 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:29,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 93 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:48:29,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-12 17:48:29,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-12 17:48:29,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.1231884057971016) internal successors, (155), 140 states have internal predecessors, (155), 23 states have call successors, (23), 12 states have call predecessors, (23), 12 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-12 17:48:29,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 200 transitions. [2024-11-12 17:48:29,880 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 200 transitions. Word has length 87 [2024-11-12 17:48:29,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:29,880 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 200 transitions. [2024-11-12 17:48:29,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-12 17:48:29,881 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 200 transitions. [2024-11-12 17:48:29,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-12 17:48:29,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:29,882 INFO L218 NwaCegarLoop]: trace histogram [15, 13, 10, 10, 10, 10, 8, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-12 17:48:29,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-12 17:48:30,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:30,083 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:48:30,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:30,084 INFO L85 PathProgramCache]: Analyzing trace with hash 859485358, now seen corresponding path program 2 times [2024-11-12 17:48:30,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:30,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169487138] [2024-11-12 17:48:30,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:30,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:30,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-12 17:48:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:30,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:30,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:30,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:30,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:30,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 17:48:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:30,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:30,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 35 proven. 23 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-12 17:48:30,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:30,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169487138] [2024-11-12 17:48:30,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169487138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:48:30,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809508109] [2024-11-12 17:48:30,452 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:48:30,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:30,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:30,454 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:48:30,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 17:48:30,515 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:48:30,515 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:48:30,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-12 17:48:30,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:48:30,599 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 25 proven. 54 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2024-11-12 17:48:30,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:48:30,992 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 25 proven. 56 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2024-11-12 17:48:30,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809508109] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:48:30,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:48:30,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-12 17:48:30,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460906859] [2024-11-12 17:48:30,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:48:30,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-12 17:48:30,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:30,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-12 17:48:30,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2024-11-12 17:48:30,995 INFO L87 Difference]: Start difference. First operand 175 states and 200 transitions. Second operand has 19 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 19 states have internal predecessors, (59), 5 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (15), 12 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-12 17:48:31,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:31,053 INFO L93 Difference]: Finished difference Result 175 states and 200 transitions. [2024-11-12 17:48:31,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 17:48:31,054 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 19 states have internal predecessors, (59), 5 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (15), 12 states have call predecessors, (15), 5 states have call successors, (15) Word has length 119 [2024-11-12 17:48:31,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:31,055 INFO L225 Difference]: With dead ends: 175 [2024-11-12 17:48:31,055 INFO L226 Difference]: Without dead ends: 174 [2024-11-12 17:48:31,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2024-11-12 17:48:31,056 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:31,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 140 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:48:31,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-12 17:48:31,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-12 17:48:31,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 138 states have (on average 1.0579710144927537) internal successors, (146), 139 states have internal predecessors, (146), 23 states have call successors, (23), 12 states have call predecessors, (23), 12 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-12 17:48:31,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 191 transitions. [2024-11-12 17:48:31,067 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 191 transitions. Word has length 119 [2024-11-12 17:48:31,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:31,068 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 191 transitions. [2024-11-12 17:48:31,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 19 states have internal predecessors, (59), 5 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (15), 12 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-12 17:48:31,068 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 191 transitions. [2024-11-12 17:48:31,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-12 17:48:31,071 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:31,071 INFO L218 NwaCegarLoop]: trace histogram [20, 17, 14, 12, 12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 3, 1, 1, 1, 1] [2024-11-12 17:48:31,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-12 17:48:31,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:31,272 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:48:31,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:31,273 INFO L85 PathProgramCache]: Analyzing trace with hash 403519089, now seen corresponding path program 3 times [2024-11-12 17:48:31,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:31,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225895686] [2024-11-12 17:48:31,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:31,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 17:48:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 17:48:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-12 17:48:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:31,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 78 proven. 135 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2024-11-12 17:48:31,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:31,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225895686] [2024-11-12 17:48:31,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225895686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:48:31,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198288393] [2024-11-12 17:48:31,957 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 17:48:31,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:31,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:31,959 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:48:31,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-12 17:48:32,031 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-12 17:48:32,032 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:48:32,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-12 17:48:32,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:48:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 78 proven. 135 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2024-11-12 17:48:32,224 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:48:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 144 proven. 128 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2024-11-12 17:48:33,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198288393] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:48:33,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:48:33,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 17] total 26 [2024-11-12 17:48:33,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046172689] [2024-11-12 17:48:33,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:48:33,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-12 17:48:33,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:33,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-12 17:48:33,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2024-11-12 17:48:33,345 INFO L87 Difference]: Start difference. First operand 174 states and 191 transitions. Second operand has 27 states, 26 states have (on average 2.730769230769231) internal successors, (71), 27 states have internal predecessors, (71), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-12 17:48:33,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:33,425 INFO L93 Difference]: Finished difference Result 175 states and 191 transitions. [2024-11-12 17:48:33,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-12 17:48:33,426 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.730769230769231) internal successors, (71), 27 states have internal predecessors, (71), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) Word has length 173 [2024-11-12 17:48:33,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:33,427 INFO L225 Difference]: With dead ends: 175 [2024-11-12 17:48:33,427 INFO L226 Difference]: Without dead ends: 174 [2024-11-12 17:48:33,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 360 SyntacticMatches, 16 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2024-11-12 17:48:33,428 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:33,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 138 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:48:33,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-12 17:48:33,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-12 17:48:33,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 138 states have (on average 1.036231884057971) internal successors, (143), 139 states have internal predecessors, (143), 23 states have call successors, (23), 12 states have call predecessors, (23), 12 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-12 17:48:33,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 188 transitions. [2024-11-12 17:48:33,438 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 188 transitions. Word has length 173 [2024-11-12 17:48:33,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:33,439 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 188 transitions. [2024-11-12 17:48:33,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.730769230769231) internal successors, (71), 27 states have internal predecessors, (71), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-12 17:48:33,439 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 188 transitions. [2024-11-12 17:48:33,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-11-12 17:48:33,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:33,444 INFO L218 NwaCegarLoop]: trace histogram [44, 40, 36, 23, 23, 23, 23, 20, 20, 20, 20, 20, 20, 20, 20, 19, 13, 8, 1, 1, 1, 1] [2024-11-12 17:48:33,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-12 17:48:33,647 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,SelfDestructingSolverStorable11 [2024-11-12 17:48:33,648 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:48:33,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:33,648 INFO L85 PathProgramCache]: Analyzing trace with hash 186525977, now seen corresponding path program 4 times [2024-11-12 17:48:33,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:33,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074257198] [2024-11-12 17:48:33,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:33,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-12 17:48:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 17:48:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 17:48:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:35,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-12 17:48:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 17:48:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-11-12 17:48:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 17:48:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 17:48:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:36,471 INFO L134 CoverageAnalysis]: Checked inductivity of 6171 backedges. 820 proven. 1112 refuted. 0 times theorem prover too weak. 4239 trivial. 0 not checked. [2024-11-12 17:48:36,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:36,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074257198] [2024-11-12 17:48:36,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074257198] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:48:36,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640629708] [2024-11-12 17:48:36,472 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-12 17:48:36,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:36,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:36,474 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:48:36,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-12 17:48:36,645 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-12 17:48:36,645 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:48:36,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-11-12 17:48:36,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:48:37,152 INFO L134 CoverageAnalysis]: Checked inductivity of 6171 backedges. 820 proven. 1112 refuted. 0 times theorem prover too weak. 4239 trivial. 0 not checked. [2024-11-12 17:48:37,152 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:48:43,712 INFO L134 CoverageAnalysis]: Checked inductivity of 6171 backedges. 1149 proven. 1015 refuted. 0 times theorem prover too weak. 4007 trivial. 0 not checked. [2024-11-12 17:48:43,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640629708] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:48:43,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:48:43,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 29] total 40 [2024-11-12 17:48:43,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956509989] [2024-11-12 17:48:43,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:48:43,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-12 17:48:43,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:43,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-12 17:48:43,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2024-11-12 17:48:43,715 INFO L87 Difference]: Start difference. First operand 174 states and 188 transitions. Second operand has 41 states, 40 states have (on average 2.625) internal successors, (105), 41 states have internal predecessors, (105), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2024-11-12 17:48:43,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:43,818 INFO L93 Difference]: Finished difference Result 175 states and 188 transitions. [2024-11-12 17:48:43,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-12 17:48:43,819 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.625) internal successors, (105), 41 states have internal predecessors, (105), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) Word has length 416 [2024-11-12 17:48:43,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:43,821 INFO L225 Difference]: With dead ends: 175 [2024-11-12 17:48:43,821 INFO L226 Difference]: Without dead ends: 174 [2024-11-12 17:48:43,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 992 GetRequests, 890 SyntacticMatches, 62 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2223 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=381, Invalid=1341, Unknown=0, NotChecked=0, Total=1722 [2024-11-12 17:48:43,822 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:43,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 221 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:48:43,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-12 17:48:43,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-12 17:48:43,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 138 states have (on average 1.0144927536231885) internal successors, (140), 139 states have internal predecessors, (140), 23 states have call successors, (23), 12 states have call predecessors, (23), 12 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-12 17:48:43,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 185 transitions. [2024-11-12 17:48:43,832 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 185 transitions. Word has length 416 [2024-11-12 17:48:43,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:43,833 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 185 transitions. [2024-11-12 17:48:43,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.625) internal successors, (105), 41 states have internal predecessors, (105), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2024-11-12 17:48:43,834 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 185 transitions. [2024-11-12 17:48:43,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2024-11-12 17:48:43,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:43,858 INFO L218 NwaCegarLoop]: trace histogram [110, 108, 89, 55, 55, 55, 55, 54, 54, 54, 54, 54, 54, 54, 54, 53, 34, 21, 1, 1, 1, 1] [2024-11-12 17:48:43,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-12 17:48:44,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-12 17:48:44,076 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:48:44,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:44,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1806176246, now seen corresponding path program 5 times [2024-11-12 17:48:44,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:44,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531317321] [2024-11-12 17:48:44,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:44,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:50,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:52,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:53,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:53,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:53,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:53,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 17:48:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 17:48:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-12 17:48:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 17:48:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-12 17:48:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 17:48:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 17:48:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2024-11-12 17:48:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:54,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 17:48:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 17:48:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-12 17:48:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 17:48:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2024-11-12 17:48:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:55,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 17:48:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 17:48:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-12 17:48:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 17:48:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-11-12 17:48:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 17:48:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-12 17:48:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:48:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:48:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:56,980 INFO L134 CoverageAnalysis]: Checked inductivity of 41934 backedges. 6686 proven. 7855 refuted. 0 times theorem prover too weak. 27393 trivial. 0 not checked. [2024-11-12 17:48:56,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:56,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531317321] [2024-11-12 17:48:56,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531317321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:48:56,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617276208] [2024-11-12 17:48:56,981 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-12 17:48:56,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:56,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:56,984 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:48:56,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-12 17:48:57,576 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 76 check-sat command(s) [2024-11-12 17:48:57,576 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:48:57,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 1998 conjuncts, 217 conjuncts are in the unsatisfiable core [2024-11-12 17:48:57,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:48:58,443 INFO L134 CoverageAnalysis]: Checked inductivity of 41934 backedges. 6686 proven. 7855 refuted. 0 times theorem prover too weak. 27393 trivial. 0 not checked. [2024-11-12 17:48:58,444 INFO L312 TraceCheckSpWp]: Computing backward predicates...