./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/fibo_7-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d 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_7-2.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 40add90db9f8d501baba3978de407d6383e788a1a5fafc7225d7676b58d18c84 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 04:57:34,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 04:57:34,901 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 04:57:34,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 04:57:34,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 04:57:34,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 04:57:34,933 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 04:57:34,933 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 04:57:34,934 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 04:57:34,937 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 04:57:34,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 04:57:34,938 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 04:57:34,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 04:57:34,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 04:57:34,939 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 04:57:34,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 04:57:34,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 04:57:34,940 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 04:57:34,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 04:57:34,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 04:57:34,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 04:57:34,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 04:57:34,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 04:57:34,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 04:57:34,944 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 04:57:34,944 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 04:57:34,944 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 04:57:34,945 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 04:57:34,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 04:57:34,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 04:57:34,945 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 04:57:34,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 04:57:34,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 04:57:34,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 04:57:34,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 04:57:34,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 04:57:34,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 04:57:34,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 04:57:34,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 04:57:34,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 04:57:34,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 04:57:34,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 04:57:34,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 04:57:34,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 04:57:34,950 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40add90db9f8d501baba3978de407d6383e788a1a5fafc7225d7676b58d18c84 [2024-11-17 04:57:35,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 04:57:35,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 04:57:35,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 04:57:35,239 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 04:57:35,240 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 04:57:35,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_7-2.c [2024-11-17 04:57:36,617 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 04:57:36,818 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 04:57:36,819 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_7-2.c [2024-11-17 04:57:36,825 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15361f069/dc0eacf28ac6403c8feb680fd06558ba/FLAG43e883386 [2024-11-17 04:57:36,837 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15361f069/dc0eacf28ac6403c8feb680fd06558ba [2024-11-17 04:57:36,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 04:57:36,841 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 04:57:36,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 04:57:36,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 04:57:36,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 04:57:36,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:57:36" (1/1) ... [2024-11-17 04:57:36,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee3bac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:36, skipping insertion in model container [2024-11-17 04:57:36,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:57:36" (1/1) ... [2024-11-17 04:57:36,867 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 04:57:37,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 04:57:37,058 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 04:57:37,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 04:57:37,086 INFO L204 MainTranslator]: Completed translation [2024-11-17 04:57:37,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:37 WrapperNode [2024-11-17 04:57:37,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 04:57:37,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 04:57:37,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 04:57:37,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 04:57:37,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:37" (1/1) ... [2024-11-17 04:57:37,101 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:37" (1/1) ... [2024-11-17 04:57:37,115 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2024-11-17 04:57:37,116 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 04:57:37,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 04:57:37,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 04:57:37,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 04:57:37,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:37" (1/1) ... [2024-11-17 04:57:37,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:37" (1/1) ... [2024-11-17 04:57:37,125 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:37" (1/1) ... [2024-11-17 04:57:37,136 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]. [2024-11-17 04:57:37,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:37" (1/1) ... [2024-11-17 04:57:37,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:37" (1/1) ... [2024-11-17 04:57:37,139 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:37" (1/1) ... [2024-11-17 04:57:37,139 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:37" (1/1) ... [2024-11-17 04:57:37,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:37" (1/1) ... [2024-11-17 04:57:37,141 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:37" (1/1) ... [2024-11-17 04:57:37,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 04:57:37,143 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 04:57:37,143 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 04:57:37,143 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 04:57:37,144 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:37" (1/1) ... [2024-11-17 04:57:37,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 04:57:37,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:57:37,182 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) [2024-11-17 04:57:37,190 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 [2024-11-17 04:57:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 04:57:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 04:57:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 04:57:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 04:57:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2024-11-17 04:57:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2024-11-17 04:57:37,304 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 04:57:37,306 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 04:57:37,475 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L13: havoc #t~ret4;havoc #t~ret5; [2024-11-17 04:57:37,487 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-17 04:57:37,488 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 04:57:37,501 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 04:57:37,501 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 04:57:37,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 04:57:37 BoogieIcfgContainer [2024-11-17 04:57:37,502 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 04:57:37,507 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 04:57:37,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 04:57:37,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 04:57:37,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 04:57:36" (1/3) ... [2024-11-17 04:57:37,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1f3ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:57:37, skipping insertion in model container [2024-11-17 04:57:37,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:57:37" (2/3) ... [2024-11-17 04:57:37,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1f3ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:57:37, skipping insertion in model container [2024-11-17 04:57:37,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 04:57:37" (3/3) ... [2024-11-17 04:57:37,516 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_7-2.c [2024-11-17 04:57:37,534 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 04:57:37,535 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-17 04:57:37,599 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 04:57:37,605 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;@2570a387, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 04:57:37,605 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-17 04:57:37,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 28 states have internal predecessors, (31), 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) [2024-11-17 04:57:37,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-17 04:57:37,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:57:37,620 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:57:37,621 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-17 04:57:37,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:57:37,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1975099998, now seen corresponding path program 1 times [2024-11-17 04:57:37,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:57:37,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263844326] [2024-11-17 04:57:37,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:37,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:57:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 04:57:37,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:57:37,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263844326] [2024-11-17 04:57:37,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263844326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:57:37,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:57:37,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 04:57:37,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021848155] [2024-11-17 04:57:37,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:57:37,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 04:57:37,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:57:37,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 04:57:37,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 04:57:37,806 INFO L87 Difference]: Start difference. First operand has 33 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 28 states have internal predecessors, (31), 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) [2024-11-17 04:57:37,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:57:37,844 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2024-11-17 04:57:37,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 04:57:37,846 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 [2024-11-17 04:57:37,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:57:37,852 INFO L225 Difference]: With dead ends: 39 [2024-11-17 04:57:37,852 INFO L226 Difference]: Without dead ends: 25 [2024-11-17 04:57:37,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 04:57:37,858 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 12 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 43 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 [2024-11-17 04:57:37,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 43 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:57:37,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-17 04:57:37,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2024-11-17 04:57:37,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 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) [2024-11-17 04:57:37,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2024-11-17 04:57:37,893 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 7 [2024-11-17 04:57:37,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:57:37,894 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2024-11-17 04:57:37,894 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) [2024-11-17 04:57:37,894 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2024-11-17 04:57:37,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-17 04:57:37,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:57:37,895 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:57:37,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 04:57:37,895 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-17 04:57:37,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:57:37,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1098557796, now seen corresponding path program 1 times [2024-11-17 04:57:37,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:57:37,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349248400] [2024-11-17 04:57:37,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:37,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:57:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:37,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 04:57:37,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:57:37,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349248400] [2024-11-17 04:57:37,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349248400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:57:37,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:57:37,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 04:57:37,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989415950] [2024-11-17 04:57:37,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:57:37,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 04:57:37,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:57:37,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 04:57:37,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 04:57:37,984 INFO L87 Difference]: Start difference. First operand 23 states and 26 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) [2024-11-17 04:57:38,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:57:38,066 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2024-11-17 04:57:38,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 04:57:38,067 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 [2024-11-17 04:57:38,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:57:38,068 INFO L225 Difference]: With dead ends: 25 [2024-11-17 04:57:38,068 INFO L226 Difference]: Without dead ends: 23 [2024-11-17 04:57:38,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:57:38,070 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 28 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:57:38,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 31 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:57:38,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-17 04:57:38,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2024-11-17 04:57:38,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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) [2024-11-17 04:57:38,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-11-17 04:57:38,078 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 8 [2024-11-17 04:57:38,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:57:38,078 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-11-17 04:57:38,078 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) [2024-11-17 04:57:38,079 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-11-17 04:57:38,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-17 04:57:38,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:57:38,084 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:57:38,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 04:57:38,085 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-17 04:57:38,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:57:38,089 INFO L85 PathProgramCache]: Analyzing trace with hash 480852129, now seen corresponding path program 1 times [2024-11-17 04:57:38,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:57:38,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696778020] [2024-11-17 04:57:38,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:38,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:57:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:38,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:38,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-17 04:57:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 04:57:38,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:57:38,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696778020] [2024-11-17 04:57:38,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696778020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:57:38,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:57:38,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 04:57:38,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735515712] [2024-11-17 04:57:38,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:57:38,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 04:57:38,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:57:38,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 04:57:38,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 04:57:38,367 INFO L87 Difference]: Start difference. First operand 21 states and 24 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) [2024-11-17 04:57:38,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:57:38,428 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2024-11-17 04:57:38,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 04:57:38,429 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 29 [2024-11-17 04:57:38,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:57:38,430 INFO L225 Difference]: With dead ends: 37 [2024-11-17 04:57:38,430 INFO L226 Difference]: Without dead ends: 35 [2024-11-17 04:57:38,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 04:57:38,433 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 5 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:57:38,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 69 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:57:38,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-17 04:57:38,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2024-11-17 04:57:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 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) [2024-11-17 04:57:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2024-11-17 04:57:38,453 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 29 [2024-11-17 04:57:38,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:57:38,453 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2024-11-17 04:57:38,454 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) [2024-11-17 04:57:38,454 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-11-17 04:57:38,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-17 04:57:38,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:57:38,456 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:57:38,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 04:57:38,456 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-17 04:57:38,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:57:38,457 INFO L85 PathProgramCache]: Analyzing trace with hash 36634658, now seen corresponding path program 1 times [2024-11-17 04:57:38,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:57:38,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785155624] [2024-11-17 04:57:38,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:38,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:57:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:38,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-17 04:57:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:38,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-17 04:57:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:38,609 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-17 04:57:38,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:57:38,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785155624] [2024-11-17 04:57:38,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785155624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:57:38,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828983947] [2024-11-17 04:57:38,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:38,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:57:38,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:57:38,614 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) [2024-11-17 04:57:38,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 04:57:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:38,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 04:57:38,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:57:38,792 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 04:57:38,793 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:57:38,947 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-17 04:57:38,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828983947] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:57:38,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:57:38,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-11-17 04:57:38,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820145260] [2024-11-17 04:57:38,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:57:38,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-17 04:57:38,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:57:38,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 04:57:38,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-17 04:57:38,954 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 15 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 7 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-17 04:57:39,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:57:39,610 INFO L93 Difference]: Finished difference Result 155 states and 227 transitions. [2024-11-17 04:57:39,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-17 04:57:39,611 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 7 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 24 [2024-11-17 04:57:39,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:57:39,613 INFO L225 Difference]: With dead ends: 155 [2024-11-17 04:57:39,613 INFO L226 Difference]: Without dead ends: 117 [2024-11-17 04:57:39,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2024-11-17 04:57:39,617 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 89 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 04:57:39,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 257 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 04:57:39,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-17 04:57:39,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 95. [2024-11-17 04:57:39,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 74 states have (on average 1.0945945945945945) internal successors, (81), 76 states have internal predecessors, (81), 12 states have call successors, (12), 3 states have call predecessors, (12), 7 states have return successors, (43), 15 states have call predecessors, (43), 11 states have call successors, (43) [2024-11-17 04:57:39,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 136 transitions. [2024-11-17 04:57:39,662 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 136 transitions. Word has length 24 [2024-11-17 04:57:39,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:57:39,662 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 136 transitions. [2024-11-17 04:57:39,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 7 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-17 04:57:39,663 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 136 transitions. [2024-11-17 04:57:39,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-17 04:57:39,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:57:39,666 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:57:39,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 04:57:39,867 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 [2024-11-17 04:57:39,867 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-17 04:57:39,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:57:39,868 INFO L85 PathProgramCache]: Analyzing trace with hash -910322325, now seen corresponding path program 2 times [2024-11-17 04:57:39,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:57:39,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214942353] [2024-11-17 04:57:39,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:39,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:57:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:39,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-17 04:57:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:40,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-17 04:57:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:40,024 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-17 04:57:40,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:57:40,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214942353] [2024-11-17 04:57:40,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214942353] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:57:40,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845871729] [2024-11-17 04:57:40,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 04:57:40,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:57:40,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:57:40,029 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) [2024-11-17 04:57:40,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 04:57:40,070 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 04:57:40,071 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 04:57:40,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 04:57:40,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:57:40,128 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-17 04:57:40,131 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 04:57:40,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845871729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:57:40,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 04:57:40,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-17 04:57:40,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264301890] [2024-11-17 04:57:40,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:57:40,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 04:57:40,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:57:40,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 04:57:40,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-17 04:57:40,134 INFO L87 Difference]: Start difference. First operand 95 states and 136 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) [2024-11-17 04:57:40,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:57:40,175 INFO L93 Difference]: Finished difference Result 105 states and 149 transitions. [2024-11-17 04:57:40,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 04:57:40,175 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 [2024-11-17 04:57:40,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:57:40,178 INFO L225 Difference]: With dead ends: 105 [2024-11-17 04:57:40,178 INFO L226 Difference]: Without dead ends: 104 [2024-11-17 04:57:40,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-17 04:57:40,179 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:57:40,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 73 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:57:40,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-17 04:57:40,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 99. [2024-11-17 04:57:40,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 78 states have (on average 1.0897435897435896) internal successors, (85), 78 states have internal predecessors, (85), 12 states have call successors, (12), 3 states have call predecessors, (12), 7 states have return successors, (43), 17 states have call predecessors, (43), 11 states have call successors, (43) [2024-11-17 04:57:40,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 140 transitions. [2024-11-17 04:57:40,208 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 140 transitions. Word has length 42 [2024-11-17 04:57:40,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:57:40,208 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 140 transitions. [2024-11-17 04:57:40,209 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) [2024-11-17 04:57:40,209 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 140 transitions. [2024-11-17 04:57:40,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-17 04:57:40,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:57:40,210 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:57:40,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 04:57:40,411 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 [2024-11-17 04:57:40,411 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-17 04:57:40,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:57:40,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1541805986, now seen corresponding path program 1 times [2024-11-17 04:57:40,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:57:40,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204454760] [2024-11-17 04:57:40,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:40,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:57:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:40,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-17 04:57:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:40,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-17 04:57:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:40,513 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-17 04:57:40,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:57:40,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204454760] [2024-11-17 04:57:40,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204454760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:57:40,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752061208] [2024-11-17 04:57:40,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:40,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:57:40,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:57:40,516 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) [2024-11-17 04:57:40,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 04:57:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:40,558 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-17 04:57:40,560 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:57:40,685 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 04:57:40,686 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:57:40,895 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-17 04:57:40,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752061208] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:57:40,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:57:40,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 23 [2024-11-17 04:57:40,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440835154] [2024-11-17 04:57:40,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:57:40,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-17 04:57:40,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:57:40,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-17 04:57:40,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2024-11-17 04:57:40,898 INFO L87 Difference]: Start difference. First operand 99 states and 140 transitions. Second operand has 23 states, 21 states have (on average 3.142857142857143) internal successors, (66), 17 states have internal predecessors, (66), 11 states have call successors, (13), 8 states have call predecessors, (13), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-17 04:57:41,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:57:41,549 INFO L93 Difference]: Finished difference Result 360 states and 564 transitions. [2024-11-17 04:57:41,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-17 04:57:41,550 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.142857142857143) internal successors, (66), 17 states have internal predecessors, (66), 11 states have call successors, (13), 8 states have call predecessors, (13), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 37 [2024-11-17 04:57:41,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:57:41,553 INFO L225 Difference]: With dead ends: 360 [2024-11-17 04:57:41,553 INFO L226 Difference]: Without dead ends: 270 [2024-11-17 04:57:41,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=186, Invalid=870, Unknown=0, NotChecked=0, Total=1056 [2024-11-17 04:57:41,559 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 261 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 04:57:41,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 517 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 04:57:41,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-17 04:57:41,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 241. [2024-11-17 04:57:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 193 states have (on average 1.0880829015544042) internal successors, (210), 192 states have internal predecessors, (210), 28 states have call successors, (28), 8 states have call predecessors, (28), 18 states have return successors, (94), 40 states have call predecessors, (94), 27 states have call successors, (94) [2024-11-17 04:57:41,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 332 transitions. [2024-11-17 04:57:41,594 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 332 transitions. Word has length 37 [2024-11-17 04:57:41,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:57:41,595 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 332 transitions. [2024-11-17 04:57:41,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.142857142857143) internal successors, (66), 17 states have internal predecessors, (66), 11 states have call successors, (13), 8 states have call predecessors, (13), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-17 04:57:41,595 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 332 transitions. [2024-11-17 04:57:41,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-17 04:57:41,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:57:41,597 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:57:41,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 04:57:41,801 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 [2024-11-17 04:57:41,802 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-17 04:57:41,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:57:41,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1018396343, now seen corresponding path program 1 times [2024-11-17 04:57:41,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:57:41,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473539194] [2024-11-17 04:57:41,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:41,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:57:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:41,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:57:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:41,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-17 04:57:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-17 04:57:41,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:57:41,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473539194] [2024-11-17 04:57:41,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473539194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:57:41,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:57:41,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 04:57:41,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500563077] [2024-11-17 04:57:41,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:57:41,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 04:57:41,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:57:41,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 04:57:41,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 04:57:41,930 INFO L87 Difference]: Start difference. First operand 241 states and 332 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) [2024-11-17 04:57:41,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:57:41,971 INFO L93 Difference]: Finished difference Result 273 states and 381 transitions. [2024-11-17 04:57:41,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 04:57:41,971 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 56 [2024-11-17 04:57:41,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:57:41,973 INFO L225 Difference]: With dead ends: 273 [2024-11-17 04:57:41,973 INFO L226 Difference]: Without dead ends: 272 [2024-11-17 04:57:41,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 04:57:41,977 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:57:41,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 59 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:57:41,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-17 04:57:42,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 252. [2024-11-17 04:57:42,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 202 states have (on average 1.0841584158415842) internal successors, (219), 200 states have internal predecessors, (219), 30 states have call successors, (30), 8 states have call predecessors, (30), 18 states have return successors, (106), 43 states have call predecessors, (106), 29 states have call successors, (106) [2024-11-17 04:57:42,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 355 transitions. [2024-11-17 04:57:42,022 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 355 transitions. Word has length 56 [2024-11-17 04:57:42,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:57:42,023 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 355 transitions. [2024-11-17 04:57:42,023 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) [2024-11-17 04:57:42,024 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 355 transitions. [2024-11-17 04:57:42,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-17 04:57:42,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:57:42,029 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 7, 7, 7, 7, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:57:42,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 04:57:42,030 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-17 04:57:42,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:57:42,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1518789919, now seen corresponding path program 1 times [2024-11-17 04:57:42,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:57:42,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538245533] [2024-11-17 04:57:42,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:42,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:57:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:42,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:57:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:42,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-17 04:57:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:42,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:42,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:42,155 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-17 04:57:42,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:57:42,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538245533] [2024-11-17 04:57:42,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538245533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:57:42,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250648603] [2024-11-17 04:57:42,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:42,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:57:42,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:57:42,157 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) [2024-11-17 04:57:42,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 04:57:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:42,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-17 04:57:42,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:57:42,417 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 100 proven. 98 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 04:57:42,418 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:57:42,675 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 100 proven. 98 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 04:57:42,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250648603] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:57:42,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:57:42,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 17, 17] total 21 [2024-11-17 04:57:42,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883632061] [2024-11-17 04:57:42,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:57:42,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-17 04:57:42,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:57:42,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-17 04:57:42,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2024-11-17 04:57:42,678 INFO L87 Difference]: Start difference. First operand 252 states and 355 transitions. Second operand has 21 states, 20 states have (on average 3.7) internal successors, (74), 15 states have internal predecessors, (74), 10 states have call successors, (14), 7 states have call predecessors, (14), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-17 04:57:43,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:57:43,167 INFO L93 Difference]: Finished difference Result 469 states and 689 transitions. [2024-11-17 04:57:43,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-17 04:57:43,168 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.7) internal successors, (74), 15 states have internal predecessors, (74), 10 states have call successors, (14), 7 states have call predecessors, (14), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 76 [2024-11-17 04:57:43,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:57:43,172 INFO L225 Difference]: With dead ends: 469 [2024-11-17 04:57:43,174 INFO L226 Difference]: Without dead ends: 238 [2024-11-17 04:57:43,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 134 SyntacticMatches, 14 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=926, Unknown=0, NotChecked=0, Total=1260 [2024-11-17 04:57:43,178 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 385 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 04:57:43,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 132 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 04:57:43,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-17 04:57:43,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 210. [2024-11-17 04:57:43,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 167 states have (on average 1.0778443113772456) internal successors, (180), 169 states have internal predecessors, (180), 25 states have call successors, (25), 8 states have call predecessors, (25), 16 states have return successors, (48), 32 states have call predecessors, (48), 24 states have call successors, (48) [2024-11-17 04:57:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 253 transitions. [2024-11-17 04:57:43,203 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 253 transitions. Word has length 76 [2024-11-17 04:57:43,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:57:43,203 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 253 transitions. [2024-11-17 04:57:43,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.7) internal successors, (74), 15 states have internal predecessors, (74), 10 states have call successors, (14), 7 states have call predecessors, (14), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-17 04:57:43,204 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 253 transitions. [2024-11-17 04:57:43,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-17 04:57:43,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:57:43,206 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:57:43,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 04:57:43,407 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 [2024-11-17 04:57:43,407 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-17 04:57:43,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:57:43,408 INFO L85 PathProgramCache]: Analyzing trace with hash 762444808, now seen corresponding path program 1 times [2024-11-17 04:57:43,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:57:43,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72787139] [2024-11-17 04:57:43,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:43,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:57:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:43,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-17 04:57:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:43,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:43,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:43,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-17 04:57:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:43,603 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-17 04:57:43,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:57:43,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72787139] [2024-11-17 04:57:43,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72787139] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:57:43,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360990071] [2024-11-17 04:57:43,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:43,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:57:43,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:57:43,606 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) [2024-11-17 04:57:43,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 04:57:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:43,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-17 04:57:43,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:57:43,718 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-11-17 04:57:43,718 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:57:43,870 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-17 04:57:43,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360990071] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:57:43,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:57:43,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2024-11-17 04:57:43,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129942235] [2024-11-17 04:57:43,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:57:43,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 04:57:43,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:57:43,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 04:57:43,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-17 04:57:43,874 INFO L87 Difference]: Start difference. First operand 210 states and 253 transitions. Second operand has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 14 states have internal predecessors, (42), 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) [2024-11-17 04:57:43,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:57:43,953 INFO L93 Difference]: Finished difference Result 213 states and 256 transitions. [2024-11-17 04:57:43,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 04:57:43,953 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 14 states have internal predecessors, (42), 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 70 [2024-11-17 04:57:43,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:57:43,956 INFO L225 Difference]: With dead ends: 213 [2024-11-17 04:57:43,956 INFO L226 Difference]: Without dead ends: 212 [2024-11-17 04:57:43,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 141 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-17 04:57:43,957 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 7 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:57:43,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 142 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:57:43,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-17 04:57:43,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 210. [2024-11-17 04:57:43,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 167 states have (on average 1.0658682634730539) internal successors, (178), 169 states have internal predecessors, (178), 25 states have call successors, (25), 8 states have call predecessors, (25), 16 states have return successors, (48), 32 states have call predecessors, (48), 24 states have call successors, (48) [2024-11-17 04:57:43,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 251 transitions. [2024-11-17 04:57:43,977 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 251 transitions. Word has length 70 [2024-11-17 04:57:43,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:57:43,978 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 251 transitions. [2024-11-17 04:57:43,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 14 states have internal predecessors, (42), 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) [2024-11-17 04:57:43,978 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 251 transitions. [2024-11-17 04:57:43,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-17 04:57:43,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:57:43,980 INFO L215 NwaCegarLoop]: trace histogram [11, 9, 7, 7, 7, 7, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-17 04:57:43,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-17 04:57:44,184 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 [2024-11-17 04:57:44,185 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-17 04:57:44,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:57:44,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1442716288, now seen corresponding path program 1 times [2024-11-17 04:57:44,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:57:44,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082913748] [2024-11-17 04:57:44,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:44,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:57:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:44,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-17 04:57:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:44,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:44,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:44,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-17 04:57:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:44,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:44,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:44,477 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 94 proven. 117 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-17 04:57:44,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:57:44,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082913748] [2024-11-17 04:57:44,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082913748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:57:44,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259506450] [2024-11-17 04:57:44,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:44,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:57:44,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:57:44,480 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) [2024-11-17 04:57:44,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 04:57:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:44,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-17 04:57:44,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:57:44,628 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 105 proven. 119 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-17 04:57:44,628 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:57:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 105 proven. 120 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-17 04:57:44,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259506450] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:57:44,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:57:44,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 17] total 21 [2024-11-17 04:57:44,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969623146] [2024-11-17 04:57:44,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:57:44,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-17 04:57:44,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:57:44,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-17 04:57:44,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2024-11-17 04:57:44,911 INFO L87 Difference]: Start difference. First operand 210 states and 251 transitions. Second operand has 21 states, 20 states have (on average 3.9) internal successors, (78), 16 states have internal predecessors, (78), 11 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-17 04:57:45,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:57:45,281 INFO L93 Difference]: Finished difference Result 336 states and 409 transitions. [2024-11-17 04:57:45,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-17 04:57:45,282 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.9) internal successors, (78), 16 states have internal predecessors, (78), 11 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 89 [2024-11-17 04:57:45,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:57:45,284 INFO L225 Difference]: With dead ends: 336 [2024-11-17 04:57:45,284 INFO L226 Difference]: Without dead ends: 147 [2024-11-17 04:57:45,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 176 SyntacticMatches, 13 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=399, Invalid=1083, Unknown=0, NotChecked=0, Total=1482 [2024-11-17 04:57:45,286 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 208 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 04:57:45,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 118 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 04:57:45,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-17 04:57:45,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 136. [2024-11-17 04:57:45,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 108 states have (on average 1.0925925925925926) internal successors, (118), 110 states have internal predecessors, (118), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-17 04:57:45,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 153 transitions. [2024-11-17 04:57:45,295 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 153 transitions. Word has length 89 [2024-11-17 04:57:45,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:57:45,296 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 153 transitions. [2024-11-17 04:57:45,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.9) internal successors, (78), 16 states have internal predecessors, (78), 11 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-17 04:57:45,296 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 153 transitions. [2024-11-17 04:57:45,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-17 04:57:45,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:57:45,297 INFO L215 NwaCegarLoop]: trace histogram [12, 10, 8, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-17 04:57:45,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 04:57:45,501 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 [2024-11-17 04:57:45,502 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-17 04:57:45,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:57:45,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1230942965, now seen corresponding path program 2 times [2024-11-17 04:57:45,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:57:45,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289469968] [2024-11-17 04:57:45,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:45,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:57:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:45,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-17 04:57:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:45,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:45,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:45,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:45,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-17 04:57:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:45,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-17 04:57:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:45,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:45,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:45,815 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2024-11-17 04:57:45,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:57:45,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289469968] [2024-11-17 04:57:45,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289469968] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:57:45,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868522884] [2024-11-17 04:57:45,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 04:57:45,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:57:45,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:57:45,818 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) [2024-11-17 04:57:45,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 04:57:45,871 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 04:57:45,872 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 04:57:45,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-17 04:57:45,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:57:45,963 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 56 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-17 04:57:45,963 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:57:46,334 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 58 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-17 04:57:46,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868522884] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:57:46,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:57:46,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-17 04:57:46,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100963494] [2024-11-17 04:57:46,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:57:46,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-17 04:57:46,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:57:46,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-17 04:57:46,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2024-11-17 04:57:46,337 INFO L87 Difference]: Start difference. First operand 136 states and 153 transitions. Second operand has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 19 states have internal predecessors, (66), 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) [2024-11-17 04:57:46,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:57:46,432 INFO L93 Difference]: Finished difference Result 136 states and 153 transitions. [2024-11-17 04:57:46,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 04:57:46,432 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 19 states have internal predecessors, (66), 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 104 [2024-11-17 04:57:46,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:57:46,434 INFO L225 Difference]: With dead ends: 136 [2024-11-17 04:57:46,434 INFO L226 Difference]: Without dead ends: 135 [2024-11-17 04:57:46,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 219 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2024-11-17 04:57:46,435 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 6 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:57:46,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 181 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:57:46,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-17 04:57:46,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-17 04:57:46,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 108 states have (on average 1.0462962962962963) internal successors, (113), 109 states have internal predecessors, (113), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-17 04:57:46,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 148 transitions. [2024-11-17 04:57:46,444 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 148 transitions. Word has length 104 [2024-11-17 04:57:46,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:57:46,444 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 148 transitions. [2024-11-17 04:57:46,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 19 states have internal predecessors, (66), 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) [2024-11-17 04:57:46,445 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 148 transitions. [2024-11-17 04:57:46,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-17 04:57:46,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:57:46,446 INFO L215 NwaCegarLoop]: trace histogram [17, 14, 14, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 3, 1, 1, 1, 1] [2024-11-17 04:57:46,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-17 04:57:46,650 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 [2024-11-17 04:57:46,651 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-17 04:57:46,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:57:46,652 INFO L85 PathProgramCache]: Analyzing trace with hash -813174990, now seen corresponding path program 2 times [2024-11-17 04:57:46,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:57:46,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420909618] [2024-11-17 04:57:46,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:46,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:57:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:46,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-17 04:57:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:47,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:47,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:47,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:47,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:47,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-17 04:57:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:47,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-17 04:57:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:47,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:47,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:47,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-17 04:57:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:47,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:47,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:47,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:47,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-17 04:57:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:47,283 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 82 proven. 142 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2024-11-17 04:57:47,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:57:47,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420909618] [2024-11-17 04:57:47,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420909618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:57:47,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669106607] [2024-11-17 04:57:47,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 04:57:47,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:57:47,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:57:47,286 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) [2024-11-17 04:57:47,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-17 04:57:47,358 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 04:57:47,358 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 04:57:47,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-17 04:57:47,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:57:47,567 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 82 proven. 142 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2024-11-17 04:57:47,568 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:57:48,769 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 152 proven. 134 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2024-11-17 04:57:48,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669106607] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:57:48,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:57:48,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 17] total 26 [2024-11-17 04:57:48,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439525772] [2024-11-17 04:57:48,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:57:48,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-17 04:57:48,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:57:48,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-17 04:57:48,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2024-11-17 04:57:48,773 INFO L87 Difference]: Start difference. First operand 135 states and 148 transitions. Second operand has 27 states, 26 states have (on average 3.076923076923077) internal successors, (80), 27 states have internal predecessors, (80), 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) [2024-11-17 04:57:48,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:57:48,857 INFO L93 Difference]: Finished difference Result 136 states and 148 transitions. [2024-11-17 04:57:48,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-17 04:57:48,858 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.076923076923077) internal successors, (80), 27 states have internal predecessors, (80), 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 161 [2024-11-17 04:57:48,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:57:48,859 INFO L225 Difference]: With dead ends: 136 [2024-11-17 04:57:48,859 INFO L226 Difference]: Without dead ends: 135 [2024-11-17 04:57:48,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 336 SyntacticMatches, 16 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2024-11-17 04:57:48,861 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 10 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:57:48,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 159 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:57:48,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-17 04:57:48,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-17 04:57:48,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 108 states have (on average 1.0185185185185186) internal successors, (110), 109 states have internal predecessors, (110), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-17 04:57:48,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 145 transitions. [2024-11-17 04:57:48,870 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 145 transitions. Word has length 161 [2024-11-17 04:57:48,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:57:48,870 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 145 transitions. [2024-11-17 04:57:48,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.076923076923077) internal successors, (80), 27 states have internal predecessors, (80), 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) [2024-11-17 04:57:48,871 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 145 transitions. [2024-11-17 04:57:48,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2024-11-17 04:57:48,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:57:48,875 INFO L215 NwaCegarLoop]: trace histogram [41, 40, 33, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 13, 8, 1, 1, 1, 1] [2024-11-17 04:57:48,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-17 04:57:49,079 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 [2024-11-17 04:57:49,081 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-17 04:57:49,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:57:49,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1405390598, now seen corresponding path program 3 times [2024-11-17 04:57:49,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:57:49,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601504067] [2024-11-17 04:57:49,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:57:49,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:57:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:50,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-17 04:57:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:50,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-17 04:57:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-17 04:57:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-17 04:57:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-17 04:57:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-17 04:57:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-17 04:57:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-17 04:57:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-11-17 04:57:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-17 04:57:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-17 04:57:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-17 04:57:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-17 04:57:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-17 04:57:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-17 04:57:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:57:51,881 INFO L134 CoverageAnalysis]: Checked inductivity of 5799 backedges. 872 proven. 1189 refuted. 0 times theorem prover too weak. 3738 trivial. 0 not checked. [2024-11-17 04:57:51,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:57:51,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601504067] [2024-11-17 04:57:51,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601504067] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:57:51,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548100389] [2024-11-17 04:57:51,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 04:57:51,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:57:51,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:57:51,885 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) [2024-11-17 04:57:51,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-17 04:57:52,076 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2024-11-17 04:57:52,076 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 04:57:52,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-11-17 04:57:52,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:57:52,626 INFO L134 CoverageAnalysis]: Checked inductivity of 5799 backedges. 872 proven. 1189 refuted. 0 times theorem prover too weak. 3738 trivial. 0 not checked. [2024-11-17 04:57:52,627 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:57:59,456 INFO L134 CoverageAnalysis]: Checked inductivity of 5799 backedges. 1226 proven. 1081 refuted. 0 times theorem prover too weak. 3492 trivial. 0 not checked. [2024-11-17 04:57:59,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548100389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:57:59,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:57:59,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 29] total 40 [2024-11-17 04:57:59,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778946806] [2024-11-17 04:57:59,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:57:59,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-17 04:57:59,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:57:59,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-17 04:57:59,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2024-11-17 04:57:59,459 INFO L87 Difference]: Start difference. First operand 135 states and 145 transitions. Second operand has 41 states, 40 states have (on average 3.0) internal successors, (120), 41 states have internal predecessors, (120), 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) [2024-11-17 04:57:59,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:57:59,533 INFO L93 Difference]: Finished difference Result 135 states and 145 transitions. [2024-11-17 04:57:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-17 04:57:59,533 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 3.0) internal successors, (120), 41 states have internal predecessors, (120), 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 417 [2024-11-17 04:57:59,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:57:59,534 INFO L225 Difference]: With dead ends: 135 [2024-11-17 04:57:59,535 INFO L226 Difference]: Without dead ends: 0 [2024-11-17 04:57:59,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 993 GetRequests, 892 SyntacticMatches, 62 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2195 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2024-11-17 04:57:59,536 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:57:59,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:57:59,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-17 04:57:59,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-17 04:57:59,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 04:57:59,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-17 04:57:59,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 417 [2024-11-17 04:57:59,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:57:59,538 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 04:57:59,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 3.0) internal successors, (120), 41 states have internal predecessors, (120), 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) [2024-11-17 04:57:59,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-17 04:57:59,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-17 04:57:59,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-17 04:57:59,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-17 04:57:59,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-17 04:57:59,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-17 04:57:59,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-17 04:57:59,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-17 04:57:59,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-17 04:57:59,745 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 [2024-11-17 04:57:59,748 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 04:57:59,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-17 04:58:00,514 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 04:58:00,542 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-17 04:58:00,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 04:58:00 BoogieIcfgContainer [2024-11-17 04:58:00,547 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 04:58:00,548 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 04:58:00,548 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 04:58:00,548 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 04:58:00,549 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 04:57:37" (3/4) ... [2024-11-17 04:58:00,551 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 04:58:00,555 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure fibo [2024-11-17 04:58:00,560 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-17 04:58:00,560 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-17 04:58:00,560 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-17 04:58:00,560 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-17 04:58:00,638 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 04:58:00,638 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 04:58:00,638 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 04:58:00,639 INFO L158 Benchmark]: Toolchain (without parser) took 23798.15ms. Allocated memory was 167.8MB in the beginning and 423.6MB in the end (delta: 255.9MB). Free memory was 136.5MB in the beginning and 375.0MB in the end (delta: -238.5MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2024-11-17 04:58:00,639 INFO L158 Benchmark]: CDTParser took 0.90ms. Allocated memory is still 109.1MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 04:58:00,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.33ms. Allocated memory is still 167.8MB. Free memory was 135.7MB in the beginning and 124.1MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 04:58:00,640 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.70ms. Allocated memory is still 167.8MB. Free memory was 124.1MB in the beginning and 123.1MB in the end (delta: 981.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 04:58:00,640 INFO L158 Benchmark]: Boogie Preprocessor took 26.01ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 121.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 04:58:00,640 INFO L158 Benchmark]: IcfgBuilder took 359.22ms. Allocated memory is still 167.8MB. Free memory was 121.0MB in the beginning and 135.1MB in the end (delta: -14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 04:58:00,641 INFO L158 Benchmark]: TraceAbstraction took 23040.65ms. Allocated memory was 167.8MB in the beginning and 423.6MB in the end (delta: 255.9MB). Free memory was 134.0MB in the beginning and 379.2MB in the end (delta: -245.2MB). Peak memory consumption was 252.2MB. Max. memory is 16.1GB. [2024-11-17 04:58:00,641 INFO L158 Benchmark]: Witness Printer took 90.31ms. Allocated memory is still 423.6MB. Free memory was 379.2MB in the beginning and 375.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 04:58:00,642 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90ms. Allocated memory is still 109.1MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.33ms. Allocated memory is still 167.8MB. Free memory was 135.7MB in the beginning and 124.1MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.70ms. Allocated memory is still 167.8MB. Free memory was 124.1MB in the beginning and 123.1MB in the end (delta: 981.6kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.01ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 121.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 359.22ms. Allocated memory is still 167.8MB. Free memory was 121.0MB in the beginning and 135.1MB in the end (delta: -14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 23040.65ms. Allocated memory was 167.8MB in the beginning and 423.6MB in the end (delta: 255.9MB). Free memory was 134.0MB in the beginning and 379.2MB in the end (delta: -245.2MB). Peak memory consumption was 252.2MB. Max. memory is 16.1GB. * Witness Printer took 90.31ms. Allocated memory is still 423.6MB. Free memory was 379.2MB in the beginning and 375.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 22.2s, OverallIterations: 13, TraceHistogramMax: 41, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1040 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1020 mSDsluCounter, 1920 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1596 mSDsCounter, 250 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2620 IncrementalHoareTripleChecker+Invalid, 2870 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 250 mSolverCounterUnsat, 324 mSDtfsCounter, 2620 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2420 GetRequests, 2068 SyntacticMatches, 112 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3754 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=7, InterpolantAutomatonStates: 168, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 125 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 16.1s InterpolantComputationTime, 2140 NumberOfCodeBlocks, 2140 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 3088 ConstructedInterpolants, 0 QuantifiedInterpolants, 7381 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1992 ConjunctsInSsa, 183 ConjunctsInUnsatCore, 30 InterpolantComputations, 5 PerfectInterpolantSequences, 18505/23180 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - ProcedureContractResult [Line: 7]: Procedure Contract for fibo Derived contract for procedure fibo. Requires: (n <= 7) Ensures: (n <= 7) RESULT: Ultimate proved your program to be correct! [2024-11-17 04:58:00,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE