./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc 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_2calls_5-2.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 eb57cc67b4a5d1052a722feccb00a81098424cf4bc0bbd7bfe756405ab740d43 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 11:08:46,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 11:08:46,881 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 11:08:46,887 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 11:08:46,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 11:08:46,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 11:08:46,920 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 11:08:46,920 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 11:08:46,921 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 11:08:46,921 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 11:08:46,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 11:08:46,922 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 11:08:46,923 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 11:08:46,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 11:08:46,927 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 11:08:46,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 11:08:46,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 11:08:46,928 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 11:08:46,928 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 11:08:46,929 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 11:08:46,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 11:08:46,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 11:08:46,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 11:08:46,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 11:08:46,931 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 11:08:46,932 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 11:08:46,932 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 11:08:46,932 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 11:08:46,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 11:08:46,933 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 11:08:46,934 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 11:08:46,934 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 11:08:46,934 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 11:08:46,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 11:08:46,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 11:08:46,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 11:08:46,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 11:08:46,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 11:08:46,936 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 11:08:46,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 11:08:46,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 11:08:46,937 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 11:08:46,937 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 11:08:46,937 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 11:08:46,937 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb57cc67b4a5d1052a722feccb00a81098424cf4bc0bbd7bfe756405ab740d43 [2024-11-19 11:08:47,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 11:08:47,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 11:08:47,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 11:08:47,264 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 11:08:47,264 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 11:08:47,265 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c [2024-11-19 11:08:48,791 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 11:08:48,983 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 11:08:48,983 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c [2024-11-19 11:08:48,991 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a762c5652/429ed85727174e69967756d7d2f4972b/FLAGc09f69da4 [2024-11-19 11:08:49,004 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a762c5652/429ed85727174e69967756d7d2f4972b [2024-11-19 11:08:49,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 11:08:49,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 11:08:49,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 11:08:49,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 11:08:49,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 11:08:49,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:08:49" (1/1) ... [2024-11-19 11:08:49,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@630742f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49, skipping insertion in model container [2024-11-19 11:08:49,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:08:49" (1/1) ... [2024-11-19 11:08:49,041 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 11:08:49,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 11:08:49,241 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 11:08:49,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 11:08:49,271 INFO L204 MainTranslator]: Completed translation [2024-11-19 11:08:49,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49 WrapperNode [2024-11-19 11:08:49,271 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 11:08:49,273 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 11:08:49,273 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 11:08:49,273 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 11:08:49,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49" (1/1) ... [2024-11-19 11:08:49,286 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49" (1/1) ... [2024-11-19 11:08:49,300 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2024-11-19 11:08:49,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 11:08:49,301 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 11:08:49,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 11:08:49,302 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 11:08:49,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49" (1/1) ... [2024-11-19 11:08:49,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49" (1/1) ... [2024-11-19 11:08:49,312 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49" (1/1) ... [2024-11-19 11:08:49,324 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]. [2024-11-19 11:08:49,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49" (1/1) ... [2024-11-19 11:08:49,325 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49" (1/1) ... [2024-11-19 11:08:49,328 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49" (1/1) ... [2024-11-19 11:08:49,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49" (1/1) ... [2024-11-19 11:08:49,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49" (1/1) ... [2024-11-19 11:08:49,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49" (1/1) ... [2024-11-19 11:08:49,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 11:08:49,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 11:08:49,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 11:08:49,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 11:08:49,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49" (1/1) ... [2024-11-19 11:08:49,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 11:08:49,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:49,377 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) [2024-11-19 11:08:49,384 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 [2024-11-19 11:08:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 11:08:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 11:08:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-11-19 11:08:49,435 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-11-19 11:08:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-11-19 11:08:49,435 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-11-19 11:08:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 11:08:49,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 11:08:49,505 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 11:08:49,510 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 11:08:49,802 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-19 11:08:49,806 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 11:08:49,822 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 11:08:49,823 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 11:08:49,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:08:49 BoogieIcfgContainer [2024-11-19 11:08:49,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 11:08:49,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 11:08:49,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 11:08:49,830 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 11:08:49,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:08:49" (1/3) ... [2024-11-19 11:08:49,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4c3419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:08:49, skipping insertion in model container [2024-11-19 11:08:49,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:08:49" (2/3) ... [2024-11-19 11:08:49,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4c3419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:08:49, skipping insertion in model container [2024-11-19 11:08:49,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:08:49" (3/3) ... [2024-11-19 11:08:49,834 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_5-2.c [2024-11-19 11:08:49,851 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 11:08:49,851 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-19 11:08:49,917 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 11:08:49,926 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;@5551ef49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 11:08:49,926 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-19 11:08:49,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 45 states have internal predecessors, (50), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-19 11:08:49,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-19 11:08:49,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:49,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:49,940 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:49,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:49,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1867028009, now seen corresponding path program 1 times [2024-11-19 11:08:49,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:49,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434947869] [2024-11-19 11:08:49,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:49,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:50,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:08:50,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:50,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434947869] [2024-11-19 11:08:50,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434947869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:50,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:08:50,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 11:08:50,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558213378] [2024-11-19 11:08:50,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:50,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 11:08:50,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:50,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 11:08:50,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:08:50,181 INFO L87 Difference]: Start difference. First operand has 53 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 45 states have internal predecessors, (50), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:50,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:50,236 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2024-11-19 11:08:50,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 11:08:50,240 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 [2024-11-19 11:08:50,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:50,248 INFO L225 Difference]: With dead ends: 59 [2024-11-19 11:08:50,248 INFO L226 Difference]: Without dead ends: 45 [2024-11-19 11:08:50,251 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 [2024-11-19 11:08:50,254 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 11 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:50,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 92 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:50,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-19 11:08:50,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2024-11-19 11:08:50,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 36 states have internal predecessors, (40), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-19 11:08:50,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2024-11-19 11:08:50,296 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 7 [2024-11-19 11:08:50,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:50,296 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2024-11-19 11:08:50,297 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) [2024-11-19 11:08:50,297 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2024-11-19 11:08:50,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 11:08:50,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:50,299 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:50,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 11:08:50,299 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:50,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:50,300 INFO L85 PathProgramCache]: Analyzing trace with hash 2043293518, now seen corresponding path program 1 times [2024-11-19 11:08:50,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:50,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624467123] [2024-11-19 11:08:50,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:50,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:50,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:08:50,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:50,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624467123] [2024-11-19 11:08:50,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624467123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:50,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:08:50,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:08:50,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334140480] [2024-11-19 11:08:50,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:50,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:08:50,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:50,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:08:50,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:50,384 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:50,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:50,481 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2024-11-19 11:08:50,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:08:50,482 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 [2024-11-19 11:08:50,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:50,483 INFO L225 Difference]: With dead ends: 64 [2024-11-19 11:08:50,483 INFO L226 Difference]: Without dead ends: 58 [2024-11-19 11:08:50,484 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 [2024-11-19 11:08:50,487 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 26 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:50,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 164 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:08:50,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-19 11:08:50,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2024-11-19 11:08:50,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 46 states have internal predecessors, (52), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 11:08:50,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2024-11-19 11:08:50,510 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 8 [2024-11-19 11:08:50,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:50,510 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2024-11-19 11:08:50,511 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) [2024-11-19 11:08:50,511 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2024-11-19 11:08:50,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-19 11:08:50,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:50,512 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:50,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 11:08:50,513 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:50,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:50,513 INFO L85 PathProgramCache]: Analyzing trace with hash -749725533, now seen corresponding path program 1 times [2024-11-19 11:08:50,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:50,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988431194] [2024-11-19 11:08:50,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:50,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:08:50,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:50,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988431194] [2024-11-19 11:08:50,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988431194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:50,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:08:50,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 11:08:50,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22944134] [2024-11-19 11:08:50,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:50,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 11:08:50,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:50,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 11:08:50,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:08:50,574 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:50,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:50,604 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2024-11-19 11:08:50,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 11:08:50,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-19 11:08:50,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:50,606 INFO L225 Difference]: With dead ends: 58 [2024-11-19 11:08:50,606 INFO L226 Difference]: Without dead ends: 56 [2024-11-19 11:08:50,607 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 [2024-11-19 11:08:50,608 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 11 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:50,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 72 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:50,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-19 11:08:50,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2024-11-19 11:08:50,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 44 states have internal predecessors, (50), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 11:08:50,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2024-11-19 11:08:50,619 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 13 [2024-11-19 11:08:50,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:50,620 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2024-11-19 11:08:50,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:50,620 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2024-11-19 11:08:50,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-19 11:08:50,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:50,621 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:50,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 11:08:50,622 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:50,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:50,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1766654982, now seen corresponding path program 1 times [2024-11-19 11:08:50,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:50,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060839218] [2024-11-19 11:08:50,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:50,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:50,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:08:50,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:50,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060839218] [2024-11-19 11:08:50,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060839218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:50,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:08:50,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:08:50,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023644637] [2024-11-19 11:08:50,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:50,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:08:50,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:50,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:08:50,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:08:50,786 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:50,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:50,929 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2024-11-19 11:08:50,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:08:50,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-19 11:08:50,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:50,932 INFO L225 Difference]: With dead ends: 58 [2024-11-19 11:08:50,932 INFO L226 Difference]: Without dead ends: 54 [2024-11-19 11:08:50,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 11:08:50,935 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 51 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:50,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 102 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:08:50,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-19 11:08:50,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2024-11-19 11:08:50,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 40 states have internal predecessors, (46), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 11:08:50,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2024-11-19 11:08:50,955 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 14 [2024-11-19 11:08:50,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:50,955 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2024-11-19 11:08:50,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:50,959 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2024-11-19 11:08:50,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-19 11:08:50,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:50,960 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:50,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 11:08:50,961 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:50,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:50,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2097999453, now seen corresponding path program 1 times [2024-11-19 11:08:50,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:50,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426468149] [2024-11-19 11:08:50,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:50,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:51,094 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 11:08:51,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:51,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426468149] [2024-11-19 11:08:51,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426468149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:51,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:08:51,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:08:51,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748614306] [2024-11-19 11:08:51,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:51,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:08:51,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:51,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:08:51,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:51,100 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:08:51,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:51,159 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2024-11-19 11:08:51,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:08:51,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2024-11-19 11:08:51,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:51,164 INFO L225 Difference]: With dead ends: 74 [2024-11-19 11:08:51,164 INFO L226 Difference]: Without dead ends: 69 [2024-11-19 11:08:51,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:51,169 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 4 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:51,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:51,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-19 11:08:51,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2024-11-19 11:08:51,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 50 states have internal predecessors, (56), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (13), 9 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-19 11:08:51,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions. [2024-11-19 11:08:51,186 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 78 transitions. Word has length 23 [2024-11-19 11:08:51,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:51,187 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 78 transitions. [2024-11-19 11:08:51,187 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) [2024-11-19 11:08:51,188 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2024-11-19 11:08:51,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-19 11:08:51,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:51,189 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:51,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 11:08:51,189 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:51,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:51,190 INFO L85 PathProgramCache]: Analyzing trace with hash 624421350, now seen corresponding path program 1 times [2024-11-19 11:08:51,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:51,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762428443] [2024-11-19 11:08:51,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:51,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 11:08:51,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:51,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762428443] [2024-11-19 11:08:51,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762428443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:51,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103590753] [2024-11-19 11:08:51,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:51,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:51,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:51,322 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) [2024-11-19 11:08:51,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 11:08:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:51,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 11:08:51,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:51,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:08:51,495 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:08:51,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103590753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:51,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:08:51,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2024-11-19 11:08:51,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873838942] [2024-11-19 11:08:51,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:51,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:08:51,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:51,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:08:51,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-19 11:08:51,497 INFO L87 Difference]: Start difference. First operand 63 states and 78 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:08:51,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:51,622 INFO L93 Difference]: Finished difference Result 113 states and 140 transitions. [2024-11-19 11:08:51,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:08:51,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2024-11-19 11:08:51,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:51,624 INFO L225 Difference]: With dead ends: 113 [2024-11-19 11:08:51,624 INFO L226 Difference]: Without dead ends: 63 [2024-11-19 11:08:51,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 11:08:51,626 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 32 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:51,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 153 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:08:51,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-19 11:08:51,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2024-11-19 11:08:51,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 47 states have internal predecessors, (53), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-19 11:08:51,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2024-11-19 11:08:51,636 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 24 [2024-11-19 11:08:51,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:51,636 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2024-11-19 11:08:51,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:08:51,637 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2024-11-19 11:08:51,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 11:08:51,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:51,638 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:51,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 11:08:51,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-19 11:08:51,839 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:51,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:51,839 INFO L85 PathProgramCache]: Analyzing trace with hash 120521327, now seen corresponding path program 1 times [2024-11-19 11:08:51,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:51,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413459177] [2024-11-19 11:08:51,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:51,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:51,960 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 11:08:51,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:51,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413459177] [2024-11-19 11:08:51,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413459177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:51,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:08:51,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:08:51,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135535551] [2024-11-19 11:08:51,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:51,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:08:51,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:51,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:08:51,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:51,966 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:08:52,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:52,012 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2024-11-19 11:08:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:08:52,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2024-11-19 11:08:52,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:52,015 INFO L225 Difference]: With dead ends: 83 [2024-11-19 11:08:52,015 INFO L226 Difference]: Without dead ends: 78 [2024-11-19 11:08:52,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:52,016 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 3 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 151 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 [2024-11-19 11:08:52,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 151 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:52,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-19 11:08:52,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2024-11-19 11:08:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 55 states have internal predecessors, (60), 10 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (19), 10 states have call predecessors, (19), 9 states have call successors, (19) [2024-11-19 11:08:52,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2024-11-19 11:08:52,037 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 25 [2024-11-19 11:08:52,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:52,038 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2024-11-19 11:08:52,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:08:52,039 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2024-11-19 11:08:52,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-19 11:08:52,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:52,041 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:52,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 11:08:52,041 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:52,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:52,042 INFO L85 PathProgramCache]: Analyzing trace with hash -473230649, now seen corresponding path program 1 times [2024-11-19 11:08:52,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:52,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631870282] [2024-11-19 11:08:52,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:52,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:52,130 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 11:08:52,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:52,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631870282] [2024-11-19 11:08:52,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631870282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:52,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:08:52,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:08:52,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292017184] [2024-11-19 11:08:52,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:52,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:08:52,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:52,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:08:52,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:52,133 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:08:52,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:52,179 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2024-11-19 11:08:52,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:08:52,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2024-11-19 11:08:52,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:52,181 INFO L225 Difference]: With dead ends: 83 [2024-11-19 11:08:52,181 INFO L226 Difference]: Without dead ends: 81 [2024-11-19 11:08:52,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:52,184 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 3 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 156 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 [2024-11-19 11:08:52,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 156 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:52,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-19 11:08:52,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2024-11-19 11:08:52,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 58 states have (on average 1.1551724137931034) internal successors, (67), 62 states have internal predecessors, (67), 11 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (23), 12 states have call predecessors, (23), 10 states have call successors, (23) [2024-11-19 11:08:52,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2024-11-19 11:08:52,201 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 29 [2024-11-19 11:08:52,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:52,202 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2024-11-19 11:08:52,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:08:52,202 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2024-11-19 11:08:52,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-19 11:08:52,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:52,203 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:52,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 11:08:52,204 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:52,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:52,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1773385638, now seen corresponding path program 1 times [2024-11-19 11:08:52,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:52,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805471790] [2024-11-19 11:08:52,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:52,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:52,299 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 11:08:52,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:52,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805471790] [2024-11-19 11:08:52,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805471790] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:52,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547879423] [2024-11-19 11:08:52,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:52,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:52,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:52,302 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) [2024-11-19 11:08:52,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 11:08:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:52,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 11:08:52,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:52,465 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:08:52,468 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:08:52,656 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 11:08:52,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547879423] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:08:52,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:08:52,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-19 11:08:52,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046880750] [2024-11-19 11:08:52,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:08:52,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 11:08:52,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:52,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 11:08:52,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-19 11:08:52,659 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:08:53,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:53,118 INFO L93 Difference]: Finished difference Result 204 states and 275 transitions. [2024-11-19 11:08:53,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 11:08:53,119 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 30 [2024-11-19 11:08:53,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:53,121 INFO L225 Difference]: With dead ends: 204 [2024-11-19 11:08:53,121 INFO L226 Difference]: Without dead ends: 135 [2024-11-19 11:08:53,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2024-11-19 11:08:53,123 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 130 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:53,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 557 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 11:08:53,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-19 11:08:53,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 121. [2024-11-19 11:08:53,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 97 states have internal predecessors, (107), 16 states have call successors, (16), 6 states have call predecessors, (16), 9 states have return successors, (35), 17 states have call predecessors, (35), 15 states have call successors, (35) [2024-11-19 11:08:53,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 158 transitions. [2024-11-19 11:08:53,153 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 158 transitions. Word has length 30 [2024-11-19 11:08:53,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:53,155 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 158 transitions. [2024-11-19 11:08:53,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:08:53,155 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 158 transitions. [2024-11-19 11:08:53,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-19 11:08:53,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:53,156 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:53,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 11:08:53,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-19 11:08:53,361 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:53,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:53,361 INFO L85 PathProgramCache]: Analyzing trace with hash -463506674, now seen corresponding path program 2 times [2024-11-19 11:08:53,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:53,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337712051] [2024-11-19 11:08:53,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:08:53,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:53,376 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:08:53,376 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:08:53,508 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 11:08:53,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:53,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337712051] [2024-11-19 11:08:53,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337712051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:53,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644106721] [2024-11-19 11:08:53,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:08:53,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:53,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:53,511 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) [2024-11-19 11:08:53,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 11:08:53,550 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:08:53,550 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:08:53,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 11:08:53,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:53,595 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 11:08:53,595 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:08:53,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644106721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:53,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:08:53,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-19 11:08:53,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134464910] [2024-11-19 11:08:53,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:53,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:08:53,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:53,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:08:53,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:08:53,597 INFO L87 Difference]: Start difference. First operand 121 states and 158 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:08:53,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:53,628 INFO L93 Difference]: Finished difference Result 133 states and 175 transitions. [2024-11-19 11:08:53,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:08:53,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2024-11-19 11:08:53,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:53,631 INFO L225 Difference]: With dead ends: 133 [2024-11-19 11:08:53,631 INFO L226 Difference]: Without dead ends: 132 [2024-11-19 11:08:53,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:08:53,632 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:53,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 140 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:53,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-19 11:08:53,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 127. [2024-11-19 11:08:53,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 98 states have (on average 1.153061224489796) internal successors, (113), 100 states have internal predecessors, (113), 16 states have call successors, (16), 6 states have call predecessors, (16), 9 states have return successors, (35), 20 states have call predecessors, (35), 15 states have call successors, (35) [2024-11-19 11:08:53,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 164 transitions. [2024-11-19 11:08:53,646 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 164 transitions. Word has length 42 [2024-11-19 11:08:53,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:53,647 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 164 transitions. [2024-11-19 11:08:53,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:08:53,647 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 164 transitions. [2024-11-19 11:08:53,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-19 11:08:53,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:53,649 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:53,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 11:08:53,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:53,853 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:53,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:53,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1483804933, now seen corresponding path program 1 times [2024-11-19 11:08:53,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:53,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398397520] [2024-11-19 11:08:53,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:53,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:53,944 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 11:08:53,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:53,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398397520] [2024-11-19 11:08:53,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398397520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:53,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843628391] [2024-11-19 11:08:53,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:53,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:53,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:53,946 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) [2024-11-19 11:08:53,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 11:08:53,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:53,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 11:08:53,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:54,057 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 11:08:54,057 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:08:54,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843628391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:54,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:08:54,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-19 11:08:54,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239670595] [2024-11-19 11:08:54,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:54,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:08:54,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:54,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:08:54,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:08:54,059 INFO L87 Difference]: Start difference. First operand 127 states and 164 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:08:54,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:54,111 INFO L93 Difference]: Finished difference Result 155 states and 203 transitions. [2024-11-19 11:08:54,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:08:54,113 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2024-11-19 11:08:54,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:54,114 INFO L225 Difference]: With dead ends: 155 [2024-11-19 11:08:54,114 INFO L226 Difference]: Without dead ends: 154 [2024-11-19 11:08:54,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:08:54,116 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:54,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 148 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:54,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-19 11:08:54,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 138. [2024-11-19 11:08:54,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 107 states have (on average 1.1401869158878504) internal successors, (122), 108 states have internal predecessors, (122), 18 states have call successors, (18), 6 states have call predecessors, (18), 9 states have return successors, (41), 23 states have call predecessors, (41), 17 states have call successors, (41) [2024-11-19 11:08:54,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 181 transitions. [2024-11-19 11:08:54,135 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 181 transitions. Word has length 43 [2024-11-19 11:08:54,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:54,136 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 181 transitions. [2024-11-19 11:08:54,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:08:54,136 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 181 transitions. [2024-11-19 11:08:54,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-19 11:08:54,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:54,137 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:54,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 11:08:54,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:54,338 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:54,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:54,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1614425526, now seen corresponding path program 1 times [2024-11-19 11:08:54,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:54,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071556918] [2024-11-19 11:08:54,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:54,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:54,403 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-19 11:08:54,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:54,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071556918] [2024-11-19 11:08:54,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071556918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:54,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:08:54,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:08:54,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214493415] [2024-11-19 11:08:54,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:54,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:08:54,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:54,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:08:54,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:54,405 INFO L87 Difference]: Start difference. First operand 138 states and 181 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:08:54,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:54,447 INFO L93 Difference]: Finished difference Result 154 states and 202 transitions. [2024-11-19 11:08:54,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:08:54,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-19 11:08:54,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:54,449 INFO L225 Difference]: With dead ends: 154 [2024-11-19 11:08:54,449 INFO L226 Difference]: Without dead ends: 153 [2024-11-19 11:08:54,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:54,450 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 2 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:54,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 154 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:54,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-19 11:08:54,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 134. [2024-11-19 11:08:54,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 104 states have (on average 1.1442307692307692) internal successors, (119), 105 states have internal predecessors, (119), 17 states have call successors, (17), 6 states have call predecessors, (17), 9 states have return successors, (38), 22 states have call predecessors, (38), 16 states have call successors, (38) [2024-11-19 11:08:54,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 174 transitions. [2024-11-19 11:08:54,466 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 174 transitions. Word has length 44 [2024-11-19 11:08:54,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:54,466 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 174 transitions. [2024-11-19 11:08:54,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:08:54,467 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 174 transitions. [2024-11-19 11:08:54,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-19 11:08:54,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:54,468 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:54,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 11:08:54,468 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:54,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:54,468 INFO L85 PathProgramCache]: Analyzing trace with hash 2086948818, now seen corresponding path program 1 times [2024-11-19 11:08:54,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:54,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909585214] [2024-11-19 11:08:54,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:54,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-19 11:08:54,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:54,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909585214] [2024-11-19 11:08:54,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909585214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:54,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742941876] [2024-11-19 11:08:54,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:54,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:54,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:54,539 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) [2024-11-19 11:08:54,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 11:08:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:54,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 11:08:54,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:54,800 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 11:08:54,801 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:08:55,119 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 11:08:55,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742941876] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:08:55,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:08:55,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 15, 15] total 31 [2024-11-19 11:08:55,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128304729] [2024-11-19 11:08:55,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:08:55,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-19 11:08:55,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:55,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-19 11:08:55,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=825, Unknown=0, NotChecked=0, Total=930 [2024-11-19 11:08:55,122 INFO L87 Difference]: Start difference. First operand 134 states and 174 transitions. Second operand has 31 states, 29 states have (on average 3.0689655172413794) internal successors, (89), 21 states have internal predecessors, (89), 14 states have call successors, (18), 11 states have call predecessors, (18), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 11:08:55,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:55,810 INFO L93 Difference]: Finished difference Result 298 states and 402 transitions. [2024-11-19 11:08:55,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 11:08:55,811 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 3.0689655172413794) internal successors, (89), 21 states have internal predecessors, (89), 14 states have call successors, (18), 11 states have call predecessors, (18), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 48 [2024-11-19 11:08:55,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:55,812 INFO L225 Difference]: With dead ends: 298 [2024-11-19 11:08:55,812 INFO L226 Difference]: Without dead ends: 183 [2024-11-19 11:08:55,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=280, Invalid=1700, Unknown=0, NotChecked=0, Total=1980 [2024-11-19 11:08:55,815 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 290 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:55,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 399 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 11:08:55,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-19 11:08:55,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 169. [2024-11-19 11:08:55,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 133 states have (on average 1.1353383458646618) internal successors, (151), 132 states have internal predecessors, (151), 21 states have call successors, (21), 8 states have call predecessors, (21), 11 states have return successors, (39), 28 states have call predecessors, (39), 20 states have call successors, (39) [2024-11-19 11:08:55,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 211 transitions. [2024-11-19 11:08:55,828 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 211 transitions. Word has length 48 [2024-11-19 11:08:55,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:55,829 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 211 transitions. [2024-11-19 11:08:55,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 3.0689655172413794) internal successors, (89), 21 states have internal predecessors, (89), 14 states have call successors, (18), 11 states have call predecessors, (18), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 11:08:55,829 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 211 transitions. [2024-11-19 11:08:55,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-19 11:08:55,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:55,830 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:55,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 11:08:56,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-19 11:08:56,035 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:56,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:56,036 INFO L85 PathProgramCache]: Analyzing trace with hash 632910190, now seen corresponding path program 1 times [2024-11-19 11:08:56,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:56,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894567795] [2024-11-19 11:08:56,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:56,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:56,107 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 11:08:56,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:56,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894567795] [2024-11-19 11:08:56,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894567795] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:56,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280782529] [2024-11-19 11:08:56,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:56,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:56,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:56,109 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) [2024-11-19 11:08:56,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 11:08:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:56,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 11:08:56,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:56,310 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 26 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 11:08:56,312 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:08:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 26 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 11:08:56,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280782529] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:08:56,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:08:56,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 13, 13] total 17 [2024-11-19 11:08:56,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597574050] [2024-11-19 11:08:56,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:08:56,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 11:08:56,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:56,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 11:08:56,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-19 11:08:56,514 INFO L87 Difference]: Start difference. First operand 169 states and 211 transitions. Second operand has 17 states, 16 states have (on average 4.3125) internal successors, (69), 13 states have internal predecessors, (69), 8 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-19 11:08:56,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:56,997 INFO L93 Difference]: Finished difference Result 315 states and 397 transitions. [2024-11-19 11:08:56,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 11:08:56,998 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.3125) internal successors, (69), 13 states have internal predecessors, (69), 8 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 61 [2024-11-19 11:08:56,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:56,999 INFO L225 Difference]: With dead ends: 315 [2024-11-19 11:08:56,999 INFO L226 Difference]: Without dead ends: 181 [2024-11-19 11:08:57,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 103 SyntacticMatches, 10 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=628, Unknown=0, NotChecked=0, Total=756 [2024-11-19 11:08:57,001 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 131 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:57,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 268 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 11:08:57,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-19 11:08:57,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 165. [2024-11-19 11:08:57,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 129 states have (on average 1.124031007751938) internal successors, (145), 130 states have internal predecessors, (145), 21 states have call successors, (21), 8 states have call predecessors, (21), 11 states have return successors, (31), 26 states have call predecessors, (31), 20 states have call successors, (31) [2024-11-19 11:08:57,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 197 transitions. [2024-11-19 11:08:57,012 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 197 transitions. Word has length 61 [2024-11-19 11:08:57,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:57,012 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 197 transitions. [2024-11-19 11:08:57,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.3125) internal successors, (69), 13 states have internal predecessors, (69), 8 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-19 11:08:57,013 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 197 transitions. [2024-11-19 11:08:57,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-19 11:08:57,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:57,013 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:57,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 11:08:57,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:57,218 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:57,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:57,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1305190632, now seen corresponding path program 1 times [2024-11-19 11:08:57,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:57,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278760599] [2024-11-19 11:08:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:57,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 11:08:57,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:57,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278760599] [2024-11-19 11:08:57,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278760599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:57,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:08:57,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:08:57,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225056845] [2024-11-19 11:08:57,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:57,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:08:57,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:57,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:08:57,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:57,288 INFO L87 Difference]: Start difference. First operand 165 states and 197 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 11:08:57,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:57,321 INFO L93 Difference]: Finished difference Result 169 states and 202 transitions. [2024-11-19 11:08:57,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:08:57,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2024-11-19 11:08:57,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:57,323 INFO L225 Difference]: With dead ends: 169 [2024-11-19 11:08:57,323 INFO L226 Difference]: Without dead ends: 168 [2024-11-19 11:08:57,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:57,324 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:57,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 140 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:57,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-19 11:08:57,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2024-11-19 11:08:57,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 131 states have (on average 1.1145038167938932) internal successors, (146), 131 states have internal predecessors, (146), 21 states have call successors, (21), 8 states have call predecessors, (21), 11 states have return successors, (31), 27 states have call predecessors, (31), 20 states have call successors, (31) [2024-11-19 11:08:57,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 198 transitions. [2024-11-19 11:08:57,337 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 198 transitions. Word has length 55 [2024-11-19 11:08:57,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:57,337 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 198 transitions. [2024-11-19 11:08:57,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 11:08:57,338 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 198 transitions. [2024-11-19 11:08:57,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-19 11:08:57,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:57,341 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:57,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 11:08:57,341 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:57,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:57,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1806203829, now seen corresponding path program 1 times [2024-11-19 11:08:57,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:57,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423523317] [2024-11-19 11:08:57,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:57,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:57,407 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 11:08:57,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:57,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423523317] [2024-11-19 11:08:57,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423523317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:57,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:08:57,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:08:57,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858449107] [2024-11-19 11:08:57,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:57,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:08:57,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:57,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:08:57,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:57,409 INFO L87 Difference]: Start difference. First operand 167 states and 198 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 11:08:57,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:57,435 INFO L93 Difference]: Finished difference Result 169 states and 200 transitions. [2024-11-19 11:08:57,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:08:57,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2024-11-19 11:08:57,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:57,437 INFO L225 Difference]: With dead ends: 169 [2024-11-19 11:08:57,437 INFO L226 Difference]: Without dead ends: 168 [2024-11-19 11:08:57,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:57,438 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:57,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 107 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:57,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-19 11:08:57,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 161. [2024-11-19 11:08:57,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 126 states have (on average 1.1111111111111112) internal successors, (140), 127 states have internal predecessors, (140), 20 states have call successors, (20), 8 states have call predecessors, (20), 11 states have return successors, (30), 25 states have call predecessors, (30), 19 states have call successors, (30) [2024-11-19 11:08:57,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 190 transitions. [2024-11-19 11:08:57,450 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 190 transitions. Word has length 56 [2024-11-19 11:08:57,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:57,450 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 190 transitions. [2024-11-19 11:08:57,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 11:08:57,451 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 190 transitions. [2024-11-19 11:08:57,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-19 11:08:57,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:57,452 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:57,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 11:08:57,452 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:57,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:57,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1795256181, now seen corresponding path program 1 times [2024-11-19 11:08:57,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:57,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129222232] [2024-11-19 11:08:57,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:57,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:57,511 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-19 11:08:57,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:57,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129222232] [2024-11-19 11:08:57,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129222232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:57,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:08:57,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:08:57,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260710146] [2024-11-19 11:08:57,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:57,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:08:57,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:57,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:08:57,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:57,513 INFO L87 Difference]: Start difference. First operand 161 states and 190 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 11:08:57,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:57,544 INFO L93 Difference]: Finished difference Result 168 states and 199 transitions. [2024-11-19 11:08:57,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:08:57,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2024-11-19 11:08:57,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:57,545 INFO L225 Difference]: With dead ends: 168 [2024-11-19 11:08:57,545 INFO L226 Difference]: Without dead ends: 167 [2024-11-19 11:08:57,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:57,546 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 3 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:57,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 117 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:57,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-19 11:08:57,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2024-11-19 11:08:57,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 129 states have (on average 1.1085271317829457) internal successors, (143), 130 states have internal predecessors, (143), 20 states have call successors, (20), 8 states have call predecessors, (20), 12 states have return successors, (32), 26 states have call predecessors, (32), 19 states have call successors, (32) [2024-11-19 11:08:57,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 195 transitions. [2024-11-19 11:08:57,557 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 195 transitions. Word has length 56 [2024-11-19 11:08:57,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:57,557 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 195 transitions. [2024-11-19 11:08:57,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 11:08:57,558 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 195 transitions. [2024-11-19 11:08:57,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-19 11:08:57,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:57,559 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:57,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 11:08:57,559 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:57,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:57,559 INFO L85 PathProgramCache]: Analyzing trace with hash 181633336, now seen corresponding path program 1 times [2024-11-19 11:08:57,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:57,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369102229] [2024-11-19 11:08:57,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:57,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:57,703 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 11:08:57,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:57,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369102229] [2024-11-19 11:08:57,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369102229] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:57,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535455598] [2024-11-19 11:08:57,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:57,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:57,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:57,705 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) [2024-11-19 11:08:57,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 11:08:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:57,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 11:08:57,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-19 11:08:57,844 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:08:57,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535455598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:57,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:08:57,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 14 [2024-11-19 11:08:57,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265607299] [2024-11-19 11:08:57,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:57,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 11:08:57,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:57,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 11:08:57,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-19 11:08:57,846 INFO L87 Difference]: Start difference. First operand 165 states and 195 transitions. Second operand has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 11:08:57,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:57,908 INFO L93 Difference]: Finished difference Result 200 states and 240 transitions. [2024-11-19 11:08:57,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 11:08:57,909 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 57 [2024-11-19 11:08:57,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:57,910 INFO L225 Difference]: With dead ends: 200 [2024-11-19 11:08:57,910 INFO L226 Difference]: Without dead ends: 199 [2024-11-19 11:08:57,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-19 11:08:57,911 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 4 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:57,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 178 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:57,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-19 11:08:57,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 175. [2024-11-19 11:08:57,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 136 states have (on average 1.1102941176470589) internal successors, (151), 138 states have internal predecessors, (151), 21 states have call successors, (21), 8 states have call predecessors, (21), 14 states have return successors, (39), 28 states have call predecessors, (39), 20 states have call successors, (39) [2024-11-19 11:08:57,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 211 transitions. [2024-11-19 11:08:57,922 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 211 transitions. Word has length 57 [2024-11-19 11:08:57,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:57,922 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 211 transitions. [2024-11-19 11:08:57,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 11:08:57,922 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 211 transitions. [2024-11-19 11:08:57,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-19 11:08:57,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:57,923 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:57,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 11:08:58,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:58,124 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:58,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:58,125 INFO L85 PathProgramCache]: Analyzing trace with hash -2056240160, now seen corresponding path program 1 times [2024-11-19 11:08:58,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:58,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016694979] [2024-11-19 11:08:58,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:58,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-19 11:08:58,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:58,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016694979] [2024-11-19 11:08:58,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016694979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:58,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:08:58,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:08:58,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122518977] [2024-11-19 11:08:58,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:58,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:08:58,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:58,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:08:58,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:58,183 INFO L87 Difference]: Start difference. First operand 175 states and 211 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 11:08:58,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:58,215 INFO L93 Difference]: Finished difference Result 183 states and 219 transitions. [2024-11-19 11:08:58,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:08:58,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 61 [2024-11-19 11:08:58,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:58,217 INFO L225 Difference]: With dead ends: 183 [2024-11-19 11:08:58,217 INFO L226 Difference]: Without dead ends: 182 [2024-11-19 11:08:58,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:08:58,218 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:58,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 145 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:58,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-19 11:08:58,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 175. [2024-11-19 11:08:58,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 136 states have (on average 1.0955882352941178) internal successors, (149), 138 states have internal predecessors, (149), 21 states have call successors, (21), 8 states have call predecessors, (21), 14 states have return successors, (39), 28 states have call predecessors, (39), 20 states have call successors, (39) [2024-11-19 11:08:58,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 209 transitions. [2024-11-19 11:08:58,231 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 209 transitions. Word has length 61 [2024-11-19 11:08:58,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:58,231 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 209 transitions. [2024-11-19 11:08:58,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 11:08:58,232 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 209 transitions. [2024-11-19 11:08:58,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-19 11:08:58,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:58,236 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:58,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 11:08:58,236 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:58,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:58,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1924796246, now seen corresponding path program 1 times [2024-11-19 11:08:58,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:58,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147709434] [2024-11-19 11:08:58,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:58,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:58,419 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 20 proven. 30 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 11:08:58,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:58,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147709434] [2024-11-19 11:08:58,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147709434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:58,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599374494] [2024-11-19 11:08:58,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:58,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:58,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:58,421 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) [2024-11-19 11:08:58,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 11:08:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:58,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 11:08:58,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:58,596 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-19 11:08:58,596 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:08:58,834 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-19 11:08:58,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599374494] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:08:58,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:08:58,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 7] total 25 [2024-11-19 11:08:58,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227527007] [2024-11-19 11:08:58,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:08:58,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-19 11:08:58,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:58,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-19 11:08:58,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2024-11-19 11:08:58,838 INFO L87 Difference]: Start difference. First operand 175 states and 209 transitions. Second operand has 25 states, 24 states have (on average 3.5) internal successors, (84), 22 states have internal predecessors, (84), 10 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-19 11:08:59,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:59,606 INFO L93 Difference]: Finished difference Result 324 states and 383 transitions. [2024-11-19 11:08:59,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-19 11:08:59,607 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.5) internal successors, (84), 22 states have internal predecessors, (84), 10 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) Word has length 74 [2024-11-19 11:08:59,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:59,608 INFO L225 Difference]: With dead ends: 324 [2024-11-19 11:08:59,608 INFO L226 Difference]: Without dead ends: 206 [2024-11-19 11:08:59,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=271, Invalid=1799, Unknown=0, NotChecked=0, Total=2070 [2024-11-19 11:08:59,611 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 151 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:59,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 268 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 11:08:59,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-19 11:08:59,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 162. [2024-11-19 11:08:59,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 125 states have (on average 1.088) internal successors, (136), 129 states have internal predecessors, (136), 20 states have call successors, (20), 8 states have call predecessors, (20), 13 states have return successors, (33), 24 states have call predecessors, (33), 19 states have call successors, (33) [2024-11-19 11:08:59,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 189 transitions. [2024-11-19 11:08:59,625 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 189 transitions. Word has length 74 [2024-11-19 11:08:59,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:59,625 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 189 transitions. [2024-11-19 11:08:59,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.5) internal successors, (84), 22 states have internal predecessors, (84), 10 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-19 11:08:59,626 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 189 transitions. [2024-11-19 11:08:59,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-19 11:08:59,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:59,627 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:59,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 11:08:59,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:59,828 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:08:59,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:59,828 INFO L85 PathProgramCache]: Analyzing trace with hash 196968042, now seen corresponding path program 1 times [2024-11-19 11:08:59,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:59,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472789982] [2024-11-19 11:08:59,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:59,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:59,957 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 14 proven. 29 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-19 11:08:59,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:59,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472789982] [2024-11-19 11:08:59,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472789982] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:59,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277698116] [2024-11-19 11:08:59,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:59,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:59,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:59,959 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) [2024-11-19 11:08:59,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 11:09:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:00,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 11:09:00,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:00,062 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 31 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 11:09:00,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:00,324 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 14 proven. 29 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-19 11:09:00,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277698116] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:00,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:00,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2024-11-19 11:09:00,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127208315] [2024-11-19 11:09:00,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:00,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 11:09:00,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:00,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 11:09:00,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-19 11:09:00,327 INFO L87 Difference]: Start difference. First operand 162 states and 189 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 7 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 11:09:00,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:00,536 INFO L93 Difference]: Finished difference Result 275 states and 318 transitions. [2024-11-19 11:09:00,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 11:09:00,537 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 7 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 70 [2024-11-19 11:09:00,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:00,540 INFO L225 Difference]: With dead ends: 275 [2024-11-19 11:09:00,540 INFO L226 Difference]: Without dead ends: 169 [2024-11-19 11:09:00,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 134 SyntacticMatches, 7 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-19 11:09:00,541 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 89 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:00,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 213 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:09:00,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-19 11:09:00,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 162. [2024-11-19 11:09:00,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 125 states have (on average 1.088) internal successors, (136), 129 states have internal predecessors, (136), 20 states have call successors, (20), 8 states have call predecessors, (20), 13 states have return successors, (31), 24 states have call predecessors, (31), 19 states have call successors, (31) [2024-11-19 11:09:00,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 187 transitions. [2024-11-19 11:09:00,558 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 187 transitions. Word has length 70 [2024-11-19 11:09:00,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:00,559 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 187 transitions. [2024-11-19 11:09:00,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 7 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 11:09:00,559 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 187 transitions. [2024-11-19 11:09:00,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-19 11:09:00,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:00,561 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:00,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-19 11:09:00,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:00,761 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:00,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:00,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1001511063, now seen corresponding path program 1 times [2024-11-19 11:09:00,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:00,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066172417] [2024-11-19 11:09:00,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:00,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:00,866 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 11:09:00,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:00,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066172417] [2024-11-19 11:09:00,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066172417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:00,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711769767] [2024-11-19 11:09:00,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:00,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:00,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:00,869 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:00,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 11:09:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:00,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 11:09:00,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:00,954 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 11:09:00,954 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:01,085 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 11:09:01,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711769767] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:01,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:01,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 10 [2024-11-19 11:09:01,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509271019] [2024-11-19 11:09:01,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:01,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 11:09:01,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:01,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 11:09:01,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:09:01,087 INFO L87 Difference]: Start difference. First operand 162 states and 187 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 11:09:01,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:01,220 INFO L93 Difference]: Finished difference Result 258 states and 295 transitions. [2024-11-19 11:09:01,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 11:09:01,220 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 71 [2024-11-19 11:09:01,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:01,222 INFO L225 Difference]: With dead ends: 258 [2024-11-19 11:09:01,222 INFO L226 Difference]: Without dead ends: 163 [2024-11-19 11:09:01,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 137 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-19 11:09:01,223 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 66 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:01,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 214 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:09:01,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-19 11:09:01,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2024-11-19 11:09:01,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 123 states have (on average 1.089430894308943) internal successors, (134), 128 states have internal predecessors, (134), 20 states have call successors, (20), 8 states have call predecessors, (20), 13 states have return successors, (30), 23 states have call predecessors, (30), 19 states have call successors, (30) [2024-11-19 11:09:01,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 184 transitions. [2024-11-19 11:09:01,235 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 184 transitions. Word has length 71 [2024-11-19 11:09:01,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:01,236 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 184 transitions. [2024-11-19 11:09:01,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 11:09:01,236 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 184 transitions. [2024-11-19 11:09:01,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-19 11:09:01,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:01,238 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:01,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-19 11:09:01,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-19 11:09:01,443 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:01,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:01,443 INFO L85 PathProgramCache]: Analyzing trace with hash -350756515, now seen corresponding path program 1 times [2024-11-19 11:09:01,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:01,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673467819] [2024-11-19 11:09:01,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:01,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:01,670 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 17 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 11:09:01,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:01,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673467819] [2024-11-19 11:09:01,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673467819] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:01,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538629569] [2024-11-19 11:09:01,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:01,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:01,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:01,672 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:01,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 11:09:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:01,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 11:09:01,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:01,911 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-19 11:09:01,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:02,309 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-19 11:09:02,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538629569] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:02,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:02,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 11] total 30 [2024-11-19 11:09:02,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738161382] [2024-11-19 11:09:02,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:02,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-19 11:09:02,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:02,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-19 11:09:02,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=788, Unknown=0, NotChecked=0, Total=870 [2024-11-19 11:09:02,311 INFO L87 Difference]: Start difference. First operand 160 states and 184 transitions. Second operand has 30 states, 29 states have (on average 3.5172413793103448) internal successors, (102), 27 states have internal predecessors, (102), 13 states have call successors, (16), 4 states have call predecessors, (16), 8 states have return successors, (16), 14 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-19 11:09:03,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:03,300 INFO L93 Difference]: Finished difference Result 318 states and 373 transitions. [2024-11-19 11:09:03,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-19 11:09:03,300 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.5172413793103448) internal successors, (102), 27 states have internal predecessors, (102), 13 states have call successors, (16), 4 states have call predecessors, (16), 8 states have return successors, (16), 14 states have call predecessors, (16), 10 states have call successors, (16) Word has length 75 [2024-11-19 11:09:03,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:03,302 INFO L225 Difference]: With dead ends: 318 [2024-11-19 11:09:03,302 INFO L226 Difference]: Without dead ends: 192 [2024-11-19 11:09:03,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 143 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 770 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=471, Invalid=3311, Unknown=0, NotChecked=0, Total=3782 [2024-11-19 11:09:03,304 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 175 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:03,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 319 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 11:09:03,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-19 11:09:03,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 166. [2024-11-19 11:09:03,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 127 states have (on average 1.078740157480315) internal successors, (137), 133 states have internal predecessors, (137), 21 states have call successors, (21), 8 states have call predecessors, (21), 14 states have return successors, (33), 24 states have call predecessors, (33), 20 states have call successors, (33) [2024-11-19 11:09:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 191 transitions. [2024-11-19 11:09:03,315 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 191 transitions. Word has length 75 [2024-11-19 11:09:03,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:03,315 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 191 transitions. [2024-11-19 11:09:03,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.5172413793103448) internal successors, (102), 27 states have internal predecessors, (102), 13 states have call successors, (16), 4 states have call predecessors, (16), 8 states have return successors, (16), 14 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-19 11:09:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 191 transitions. [2024-11-19 11:09:03,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-19 11:09:03,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:03,317 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:03,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-19 11:09:03,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-19 11:09:03,522 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:03,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:03,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1803732141, now seen corresponding path program 1 times [2024-11-19 11:09:03,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:03,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232154971] [2024-11-19 11:09:03,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:03,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:03,592 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-19 11:09:03,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:03,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232154971] [2024-11-19 11:09:03,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232154971] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:03,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082020722] [2024-11-19 11:09:03,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:03,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:03,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:03,595 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:03,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 11:09:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:03,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 11:09:03,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:03,752 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 33 proven. 33 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-19 11:09:03,752 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:03,948 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 33 proven. 33 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-19 11:09:03,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082020722] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:03,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:03,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 11] total 15 [2024-11-19 11:09:03,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977902183] [2024-11-19 11:09:03,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:03,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 11:09:03,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:03,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 11:09:03,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-19 11:09:03,950 INFO L87 Difference]: Start difference. First operand 166 states and 191 transitions. Second operand has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 13 states have internal predecessors, (79), 9 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-19 11:09:04,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:04,105 INFO L93 Difference]: Finished difference Result 273 states and 319 transitions. [2024-11-19 11:09:04,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 11:09:04,106 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 13 states have internal predecessors, (79), 9 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 7 states have call successors, (12) Word has length 88 [2024-11-19 11:09:04,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:04,107 INFO L225 Difference]: With dead ends: 273 [2024-11-19 11:09:04,107 INFO L226 Difference]: Without dead ends: 153 [2024-11-19 11:09:04,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 163 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-19 11:09:04,108 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 96 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:04,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 233 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:09:04,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-19 11:09:04,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 148. [2024-11-19 11:09:04,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 113 states have (on average 1.0707964601769913) internal successors, (121), 119 states have internal predecessors, (121), 18 states have call successors, (18), 8 states have call predecessors, (18), 13 states have return successors, (25), 20 states have call predecessors, (25), 17 states have call successors, (25) [2024-11-19 11:09:04,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 164 transitions. [2024-11-19 11:09:04,118 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 164 transitions. Word has length 88 [2024-11-19 11:09:04,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:04,118 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 164 transitions. [2024-11-19 11:09:04,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 13 states have internal predecessors, (79), 9 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-19 11:09:04,119 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 164 transitions. [2024-11-19 11:09:04,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-19 11:09:04,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:04,119 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:04,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-19 11:09:04,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-19 11:09:04,324 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:04,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:04,324 INFO L85 PathProgramCache]: Analyzing trace with hash -2016411688, now seen corresponding path program 2 times [2024-11-19 11:09:04,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:04,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281440546] [2024-11-19 11:09:04,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:04,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:04,335 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:04,335 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:04,612 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 8 proven. 27 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-19 11:09:04,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:04,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281440546] [2024-11-19 11:09:04,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281440546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:04,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62882621] [2024-11-19 11:09:04,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:04,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:04,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:04,615 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:04,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 11:09:04,670 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:04,670 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:04,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 11:09:04,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:04,853 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-19 11:09:04,853 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:05,353 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 14 proven. 21 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-19 11:09:05,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62882621] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:05,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:05,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 34 [2024-11-19 11:09:05,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935777971] [2024-11-19 11:09:05,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:05,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-19 11:09:05,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:05,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-19 11:09:05,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1040, Unknown=0, NotChecked=0, Total=1190 [2024-11-19 11:09:05,357 INFO L87 Difference]: Start difference. First operand 148 states and 164 transitions. Second operand has 35 states, 34 states have (on average 2.7941176470588234) internal successors, (95), 35 states have internal predecessors, (95), 10 states have call successors, (12), 1 states have call predecessors, (12), 13 states have return successors, (21), 21 states have call predecessors, (21), 10 states have call successors, (21) [2024-11-19 11:09:05,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:05,727 INFO L93 Difference]: Finished difference Result 183 states and 210 transitions. [2024-11-19 11:09:05,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-19 11:09:05,728 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.7941176470588234) internal successors, (95), 35 states have internal predecessors, (95), 10 states have call successors, (12), 1 states have call predecessors, (12), 13 states have return successors, (21), 21 states have call predecessors, (21), 10 states have call successors, (21) Word has length 89 [2024-11-19 11:09:05,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:05,730 INFO L225 Difference]: With dead ends: 183 [2024-11-19 11:09:05,730 INFO L226 Difference]: Without dead ends: 181 [2024-11-19 11:09:05,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 154 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=259, Invalid=1721, Unknown=0, NotChecked=0, Total=1980 [2024-11-19 11:09:05,732 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 21 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:05,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 587 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:09:05,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-19 11:09:05,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 146. [2024-11-19 11:09:05,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 113 states have (on average 1.0530973451327434) internal successors, (119), 117 states have internal predecessors, (119), 18 states have call successors, (18), 8 states have call predecessors, (18), 13 states have return successors, (25), 20 states have call predecessors, (25), 17 states have call successors, (25) [2024-11-19 11:09:05,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 162 transitions. [2024-11-19 11:09:05,750 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 162 transitions. Word has length 89 [2024-11-19 11:09:05,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:05,751 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 162 transitions. [2024-11-19 11:09:05,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.7941176470588234) internal successors, (95), 35 states have internal predecessors, (95), 10 states have call successors, (12), 1 states have call predecessors, (12), 13 states have return successors, (21), 21 states have call predecessors, (21), 10 states have call successors, (21) [2024-11-19 11:09:05,751 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 162 transitions. [2024-11-19 11:09:05,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-19 11:09:05,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:05,752 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:05,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-19 11:09:05,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-19 11:09:05,953 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:05,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:05,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1915747185, now seen corresponding path program 1 times [2024-11-19 11:09:05,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:05,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498662615] [2024-11-19 11:09:05,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:05,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:06,208 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 24 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-19 11:09:06,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:06,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498662615] [2024-11-19 11:09:06,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498662615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:06,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469449545] [2024-11-19 11:09:06,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:06,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:06,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:06,210 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:06,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 11:09:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:06,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-19 11:09:06,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:06,420 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-19 11:09:06,420 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:06,880 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-19 11:09:06,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469449545] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:06,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:06,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 16] total 33 [2024-11-19 11:09:06,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650176904] [2024-11-19 11:09:06,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:06,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-19 11:09:06,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:06,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-19 11:09:06,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=970, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 11:09:06,882 INFO L87 Difference]: Start difference. First operand 146 states and 162 transitions. Second operand has 34 states, 33 states have (on average 2.8181818181818183) internal successors, (93), 34 states have internal predecessors, (93), 9 states have call successors, (11), 1 states have call predecessors, (11), 12 states have return successors, (20), 20 states have call predecessors, (20), 9 states have call successors, (20) [2024-11-19 11:09:07,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:07,045 INFO L93 Difference]: Finished difference Result 167 states and 184 transitions. [2024-11-19 11:09:07,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-19 11:09:07,045 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.8181818181818183) internal successors, (93), 34 states have internal predecessors, (93), 9 states have call successors, (11), 1 states have call predecessors, (11), 12 states have return successors, (20), 20 states have call predecessors, (20), 9 states have call successors, (20) Word has length 90 [2024-11-19 11:09:07,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:07,046 INFO L225 Difference]: With dead ends: 167 [2024-11-19 11:09:07,046 INFO L226 Difference]: Without dead ends: 152 [2024-11-19 11:09:07,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 157 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=194, Invalid=1212, Unknown=0, NotChecked=0, Total=1406 [2024-11-19 11:09:07,047 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 12 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:07,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 471 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:09:07,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-19 11:09:07,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2024-11-19 11:09:07,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 93 states have (on average 1.043010752688172) internal successors, (97), 97 states have internal predecessors, (97), 15 states have call successors, (15), 8 states have call predecessors, (15), 11 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2024-11-19 11:09:07,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 129 transitions. [2024-11-19 11:09:07,057 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 129 transitions. Word has length 90 [2024-11-19 11:09:07,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:07,058 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 129 transitions. [2024-11-19 11:09:07,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.8181818181818183) internal successors, (93), 34 states have internal predecessors, (93), 9 states have call successors, (11), 1 states have call predecessors, (11), 12 states have return successors, (20), 20 states have call predecessors, (20), 9 states have call successors, (20) [2024-11-19 11:09:07,058 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 129 transitions. [2024-11-19 11:09:07,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 11:09:07,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:07,059 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:07,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-19 11:09:07,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:07,264 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:07,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:07,264 INFO L85 PathProgramCache]: Analyzing trace with hash 324878117, now seen corresponding path program 1 times [2024-11-19 11:09:07,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:07,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020585859] [2024-11-19 11:09:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:07,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:07,378 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-19 11:09:07,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:07,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020585859] [2024-11-19 11:09:07,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020585859] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:07,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512292097] [2024-11-19 11:09:07,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:07,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:07,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:07,381 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:07,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 11:09:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:07,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 11:09:07,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:07,501 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-19 11:09:07,502 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:07,739 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-19 11:09:07,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512292097] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:07,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:07,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2024-11-19 11:09:07,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955657484] [2024-11-19 11:09:07,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:07,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 11:09:07,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:07,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 11:09:07,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 11:09:07,741 INFO L87 Difference]: Start difference. First operand 120 states and 129 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 11:09:07,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:07,842 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2024-11-19 11:09:07,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 11:09:07,842 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 124 [2024-11-19 11:09:07,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:07,843 INFO L225 Difference]: With dead ends: 133 [2024-11-19 11:09:07,843 INFO L226 Difference]: Without dead ends: 118 [2024-11-19 11:09:07,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 242 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-19 11:09:07,844 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 60 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:07,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 112 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:09:07,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-19 11:09:07,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-19 11:09:07,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 92 states have (on average 1.0326086956521738) internal successors, (95), 95 states have internal predecessors, (95), 15 states have call successors, (15), 8 states have call predecessors, (15), 10 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2024-11-19 11:09:07,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 126 transitions. [2024-11-19 11:09:07,852 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 126 transitions. Word has length 124 [2024-11-19 11:09:07,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:07,853 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 126 transitions. [2024-11-19 11:09:07,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 11:09:07,853 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 126 transitions. [2024-11-19 11:09:07,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-19 11:09:07,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:07,855 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2024-11-19 11:09:07,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-19 11:09:08,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-19 11:09:08,055 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:08,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:08,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1419353795, now seen corresponding path program 2 times [2024-11-19 11:09:08,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:08,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217229858] [2024-11-19 11:09:08,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:08,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:08,074 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:08,075 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:08,558 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 45 proven. 85 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-19 11:09:08,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:08,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217229858] [2024-11-19 11:09:08,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217229858] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:08,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432977194] [2024-11-19 11:09:08,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:08,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:08,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:08,561 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:08,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 11:09:08,663 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:08,664 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:08,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 11:09:08,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:08,900 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-19 11:09:08,901 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 74 proven. 54 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-11-19 11:09:10,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432977194] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:10,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:10,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18, 22] total 44 [2024-11-19 11:09:10,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510990359] [2024-11-19 11:09:10,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:10,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-19 11:09:10,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:10,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-19 11:09:10,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1724, Unknown=0, NotChecked=0, Total=1980 [2024-11-19 11:09:10,095 INFO L87 Difference]: Start difference. First operand 118 states and 126 transitions. Second operand has 45 states, 44 states have (on average 2.727272727272727) internal successors, (120), 45 states have internal predecessors, (120), 11 states have call successors, (13), 1 states have call predecessors, (13), 15 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2024-11-19 11:09:10,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:10,291 INFO L93 Difference]: Finished difference Result 143 states and 155 transitions. [2024-11-19 11:09:10,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-19 11:09:10,291 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.727272727272727) internal successors, (120), 45 states have internal predecessors, (120), 11 states have call successors, (13), 1 states have call predecessors, (13), 15 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) Word has length 143 [2024-11-19 11:09:10,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:10,292 INFO L225 Difference]: With dead ends: 143 [2024-11-19 11:09:10,292 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 11:09:10,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 257 SyntacticMatches, 13 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1362 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=283, Invalid=1879, Unknown=0, NotChecked=0, Total=2162 [2024-11-19 11:09:10,294 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:10,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 651 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:09:10,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 11:09:10,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 11:09:10,294 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) [2024-11-19 11:09:10,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 11:09:10,295 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 143 [2024-11-19 11:09:10,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:10,295 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 11:09:10,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.727272727272727) internal successors, (120), 45 states have internal predecessors, (120), 11 states have call successors, (13), 1 states have call predecessors, (13), 15 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2024-11-19 11:09:10,295 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 11:09:10,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 11:09:10,298 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2024-11-19 11:09:10,298 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2024-11-19 11:09:10,299 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2024-11-19 11:09:10,299 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2024-11-19 11:09:10,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2024-11-19 11:09:10,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2024-11-19 11:09:10,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2024-11-19 11:09:10,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2024-11-19 11:09:10,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2024-11-19 11:09:10,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2024-11-19 11:09:10,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2024-11-19 11:09:10,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2024-11-19 11:09:10,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-19 11:09:10,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-19 11:09:10,507 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:10,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-19 11:09:14,112 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 11:09:14,148 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-19 11:09:14,160 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-19 11:09:14,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:09:14 BoogieIcfgContainer [2024-11-19 11:09:14,162 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 11:09:14,162 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 11:09:14,162 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 11:09:14,163 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 11:09:14,163 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:08:49" (3/4) ... [2024-11-19 11:09:14,165 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 11:09:14,170 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo2 [2024-11-19 11:09:14,170 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo1 [2024-11-19 11:09:14,175 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-19 11:09:14,176 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 11:09:14,176 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 11:09:14,176 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 11:09:14,268 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 11:09:14,271 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 11:09:14,271 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 11:09:14,272 INFO L158 Benchmark]: Toolchain (without parser) took 25262.90ms. Allocated memory was 130.0MB in the beginning and 377.5MB in the end (delta: 247.5MB). Free memory was 75.9MB in the beginning and 172.5MB in the end (delta: -96.6MB). Peak memory consumption was 152.7MB. Max. memory is 16.1GB. [2024-11-19 11:09:14,272 INFO L158 Benchmark]: CDTParser took 1.21ms. Allocated memory is still 130.0MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 11:09:14,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.32ms. Allocated memory is still 130.0MB. Free memory was 75.7MB in the beginning and 63.7MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 11:09:14,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.35ms. Allocated memory is still 130.0MB. Free memory was 63.7MB in the beginning and 62.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 11:09:14,272 INFO L158 Benchmark]: Boogie Preprocessor took 32.52ms. Allocated memory is still 130.0MB. Free memory was 62.3MB in the beginning and 60.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 11:09:14,273 INFO L158 Benchmark]: RCFGBuilder took 488.50ms. Allocated memory was 130.0MB in the beginning and 180.4MB in the end (delta: 50.3MB). Free memory was 60.7MB in the beginning and 145.2MB in the end (delta: -84.5MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2024-11-19 11:09:14,273 INFO L158 Benchmark]: TraceAbstraction took 24336.62ms. Allocated memory was 180.4MB in the beginning and 377.5MB in the end (delta: 197.1MB). Free memory was 144.5MB in the beginning and 177.7MB in the end (delta: -33.2MB). Peak memory consumption was 225.5MB. Max. memory is 16.1GB. [2024-11-19 11:09:14,273 INFO L158 Benchmark]: Witness Printer took 108.88ms. Allocated memory is still 377.5MB. Free memory was 177.7MB in the beginning and 172.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 11:09:14,274 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21ms. Allocated memory is still 130.0MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.32ms. Allocated memory is still 130.0MB. Free memory was 75.7MB in the beginning and 63.7MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.35ms. Allocated memory is still 130.0MB. Free memory was 63.7MB in the beginning and 62.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.52ms. Allocated memory is still 130.0MB. Free memory was 62.3MB in the beginning and 60.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 488.50ms. Allocated memory was 130.0MB in the beginning and 180.4MB in the end (delta: 50.3MB). Free memory was 60.7MB in the beginning and 145.2MB in the end (delta: -84.5MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * TraceAbstraction took 24336.62ms. Allocated memory was 180.4MB in the beginning and 377.5MB in the end (delta: 197.1MB). Free memory was 144.5MB in the beginning and 177.7MB in the end (delta: -33.2MB). Peak memory consumption was 225.5MB. Max. memory is 16.1GB. * Witness Printer took 108.88ms. Allocated memory is still 377.5MB. Free memory was 177.7MB in the beginning and 172.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 53 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 20.6s, OverallIterations: 28, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1443 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1387 mSDsluCounter, 6426 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5417 mSDsCounter, 391 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5823 IncrementalHoareTripleChecker+Invalid, 6214 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 391 mSolverCounterUnsat, 1009 mSDtfsCounter, 5823 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2434 GetRequests, 1921 SyntacticMatches, 68 SemanticMatches, 445 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4444 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=18, InterpolantAutomatonStates: 334, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 28 MinimizatonAttempts, 309 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 2649 NumberOfCodeBlocks, 2649 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 3556 ConstructedInterpolants, 0 QuantifiedInterpolants, 7407 SizeOfPredicates, 25 NumberOfNonLiveVariables, 2398 ConjunctsInSsa, 177 ConjunctsInUnsatCore, 56 InterpolantComputations, 16 PerfectInterpolantSequences, 3084/3920 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - ProcedureContractResult [Line: 19]: Procedure Contract for fibo2 Derived contract for procedure fibo2. Requires: (n <= 4) Ensures: ((n <= 4) && ((((\result == 0) && (n <= 0)) || (2 < n)) || ((\result == 1) && (1 <= n)))) - ProcedureContractResult [Line: 9]: Procedure Contract for fibo1 Derived contract for procedure fibo1. Requires: ((n < 4) || (5 == n)) Ensures: ((n < 4) || (5 == n)) RESULT: Ultimate proved your program to be correct! [2024-11-19 11:09:14,308 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