./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_8-2.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_8-2.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 5952061731474d390646c291ccf1d0136c1d856e30481accbc86db371431d703 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 11:09:01,836 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 11:09:01,891 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 11:09:01,896 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 11:09:01,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 11:09:01,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 11:09:01,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 11:09:01,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 11:09:01,922 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 11:09:01,923 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 11:09:01,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 11:09:01,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 11:09:01,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 11:09:01,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 11:09:01,926 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 11:09:01,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 11:09:01,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 11:09:01,927 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 11:09:01,927 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 11:09:01,927 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 11:09:01,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 11:09:01,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 11:09:01,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 11:09:01,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 11:09:01,930 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 11:09:01,930 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 11:09:01,930 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 11:09:01,930 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 11:09:01,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 11:09:01,931 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 11:09:01,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 11:09:01,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 11:09:01,931 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 11:09:01,931 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 11:09:01,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 11:09:01,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 11:09:01,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 11:09:01,933 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 11:09:01,933 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 11:09:01,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 11:09:01,934 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 11:09:01,934 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 11:09:01,935 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 11:09:01,935 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 11:09:01,935 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5952061731474d390646c291ccf1d0136c1d856e30481accbc86db371431d703 [2024-11-19 11:09:02,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 11:09:02,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 11:09:02,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 11:09:02,195 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 11:09:02,195 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 11:09:02,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_8-2.c [2024-11-19 11:09:03,489 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 11:09:03,650 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 11:09:03,650 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-2.c [2024-11-19 11:09:03,660 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d60d7a3/0ee8765b761f4b9cb780c7160d628c32/FLAG26e739537 [2024-11-19 11:09:04,051 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d60d7a3/0ee8765b761f4b9cb780c7160d628c32 [2024-11-19 11:09:04,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 11:09:04,055 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 11:09:04,058 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 11:09:04,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 11:09:04,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 11:09:04,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:09:04" (1/1) ... [2024-11-19 11:09:04,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7732c9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04, skipping insertion in model container [2024-11-19 11:09:04,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:09:04" (1/1) ... [2024-11-19 11:09:04,077 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 11:09:04,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 11:09:04,243 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 11:09:04,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 11:09:04,269 INFO L204 MainTranslator]: Completed translation [2024-11-19 11:09:04,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04 WrapperNode [2024-11-19 11:09:04,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 11:09:04,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 11:09:04,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 11:09:04,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 11:09:04,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04" (1/1) ... [2024-11-19 11:09:04,280 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04" (1/1) ... [2024-11-19 11:09:04,292 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2024-11-19 11:09:04,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 11:09:04,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 11:09:04,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 11:09:04,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 11:09:04,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04" (1/1) ... [2024-11-19 11:09:04,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04" (1/1) ... [2024-11-19 11:09:04,302 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04" (1/1) ... [2024-11-19 11:09:04,310 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 11:09:04,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04" (1/1) ... [2024-11-19 11:09:04,311 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04" (1/1) ... [2024-11-19 11:09:04,313 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04" (1/1) ... [2024-11-19 11:09:04,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04" (1/1) ... [2024-11-19 11:09:04,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04" (1/1) ... [2024-11-19 11:09:04,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04" (1/1) ... [2024-11-19 11:09:04,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 11:09:04,317 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 11:09:04,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 11:09:04,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 11:09:04,317 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04" (1/1) ... [2024-11-19 11:09:04,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 11:09:04,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:04,435 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 11:09:04,438 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 11:09:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 11:09:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 11:09:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-11-19 11:09:04,474 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-11-19 11:09:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-11-19 11:09:04,475 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-11-19 11:09:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 11:09:04,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 11:09:04,529 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 11:09:04,531 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 11:09:04,689 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-19 11:09:04,689 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 11:09:04,708 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 11:09:04,708 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 11:09:04,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:09:04 BoogieIcfgContainer [2024-11-19 11:09:04,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 11:09:04,711 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 11:09:04,711 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 11:09:04,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 11:09:04,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:09:04" (1/3) ... [2024-11-19 11:09:04,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5065726c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:09:04, skipping insertion in model container [2024-11-19 11:09:04,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:04" (2/3) ... [2024-11-19 11:09:04,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5065726c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:09:04, skipping insertion in model container [2024-11-19 11:09:04,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:09:04" (3/3) ... [2024-11-19 11:09:04,717 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-2.c [2024-11-19 11:09:04,731 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 11:09:04,732 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-19 11:09:04,782 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 11:09:04,789 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;@5fa7036b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 11:09:04,789 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-19 11:09:04,793 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 11:09:04,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-19 11:09:04,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:04,799 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:04,799 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:04,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:04,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1867028009, now seen corresponding path program 1 times [2024-11-19 11:09:04,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:04,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036323392] [2024-11-19 11:09:04,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:04,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:04,947 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 11:09:04,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:04,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036323392] [2024-11-19 11:09:04,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036323392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:04,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:09:04,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 11:09:04,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213836770] [2024-11-19 11:09:04,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:04,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 11:09:04,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:04,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 11:09:04,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:09:04,979 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 11:09:05,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:05,025 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2024-11-19 11:09:05,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 11:09:05,027 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 11:09:05,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:05,035 INFO L225 Difference]: With dead ends: 59 [2024-11-19 11:09:05,035 INFO L226 Difference]: Without dead ends: 45 [2024-11-19 11:09:05,038 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 11:09:05,041 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 11:09:05,042 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 11:09:05,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-19 11:09:05,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2024-11-19 11:09:05,072 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 11:09:05,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2024-11-19 11:09:05,075 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 7 [2024-11-19 11:09:05,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:05,075 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2024-11-19 11:09:05,076 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 11:09:05,076 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2024-11-19 11:09:05,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 11:09:05,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:05,077 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:05,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 11:09:05,078 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:05,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:05,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2043293518, now seen corresponding path program 1 times [2024-11-19 11:09:05,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:05,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45944645] [2024-11-19 11:09:05,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:05,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:05,136 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 11:09:05,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:05,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45944645] [2024-11-19 11:09:05,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45944645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:05,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:09:05,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:09:05,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14513434] [2024-11-19 11:09:05,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:05,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:09:05,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:05,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:09:05,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:09:05,140 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 11:09:05,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:05,212 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2024-11-19 11:09:05,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:09:05,212 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 11:09:05,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:05,213 INFO L225 Difference]: With dead ends: 64 [2024-11-19 11:09:05,213 INFO L226 Difference]: Without dead ends: 58 [2024-11-19 11:09:05,214 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 11:09:05,215 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 26 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:05,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 164 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:09:05,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-19 11:09:05,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2024-11-19 11:09:05,221 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 11:09:05,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2024-11-19 11:09:05,222 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 8 [2024-11-19 11:09:05,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:05,222 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2024-11-19 11:09:05,222 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 11:09:05,223 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2024-11-19 11:09:05,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-19 11:09:05,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:05,223 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:05,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 11:09:05,223 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:05,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:05,224 INFO L85 PathProgramCache]: Analyzing trace with hash -749725533, now seen corresponding path program 1 times [2024-11-19 11:09:05,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:05,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9292419] [2024-11-19 11:09:05,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:05,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:05,274 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 11:09:05,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:05,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9292419] [2024-11-19 11:09:05,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9292419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:05,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:09:05,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 11:09:05,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330191541] [2024-11-19 11:09:05,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:05,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 11:09:05,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:05,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 11:09:05,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:09:05,277 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 11:09:05,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:05,297 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2024-11-19 11:09:05,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 11:09:05,298 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 11:09:05,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:05,299 INFO L225 Difference]: With dead ends: 58 [2024-11-19 11:09:05,299 INFO L226 Difference]: Without dead ends: 56 [2024-11-19 11:09:05,300 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 11:09:05,301 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 11:09:05,301 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 11:09:05,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-19 11:09:05,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2024-11-19 11:09:05,308 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 11:09:05,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2024-11-19 11:09:05,310 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 13 [2024-11-19 11:09:05,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:05,310 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2024-11-19 11:09:05,310 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 11:09:05,310 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2024-11-19 11:09:05,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-19 11:09:05,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:05,311 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:05,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 11:09:05,311 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:05,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:05,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1766654982, now seen corresponding path program 1 times [2024-11-19 11:09:05,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:05,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53289149] [2024-11-19 11:09:05,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:05,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:05,406 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 11:09:05,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:05,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53289149] [2024-11-19 11:09:05,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53289149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:05,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:09:05,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:09:05,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900034644] [2024-11-19 11:09:05,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:05,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:09:05,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:05,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:09:05,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:09:05,409 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 11:09:05,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:05,514 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2024-11-19 11:09:05,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:09:05,515 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 11:09:05,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:05,516 INFO L225 Difference]: With dead ends: 58 [2024-11-19 11:09:05,516 INFO L226 Difference]: Without dead ends: 54 [2024-11-19 11:09:05,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 11:09:05,517 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 11:09:05,518 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 11:09:05,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-19 11:09:05,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2024-11-19 11:09:05,526 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 11:09:05,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2024-11-19 11:09:05,528 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 14 [2024-11-19 11:09:05,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:05,528 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2024-11-19 11:09:05,528 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 11:09:05,529 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2024-11-19 11:09:05,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-19 11:09:05,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:05,530 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 11:09:05,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 11:09:05,530 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:05,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:05,531 INFO L85 PathProgramCache]: Analyzing trace with hash 2097999453, now seen corresponding path program 1 times [2024-11-19 11:09:05,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:05,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510373732] [2024-11-19 11:09:05,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:05,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:05,640 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 11:09:05,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:05,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510373732] [2024-11-19 11:09:05,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510373732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:05,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:09:05,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:09:05,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208549272] [2024-11-19 11:09:05,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:05,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:09:05,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:05,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:09:05,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:09:05,644 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 11:09:05,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:05,688 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2024-11-19 11:09:05,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:09:05,691 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 11:09:05,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:05,692 INFO L225 Difference]: With dead ends: 74 [2024-11-19 11:09:05,692 INFO L226 Difference]: Without dead ends: 69 [2024-11-19 11:09:05,693 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 11:09:05,694 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 11:09:05,694 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 11:09:05,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-19 11:09:05,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2024-11-19 11:09:05,707 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 11:09:05,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions. [2024-11-19 11:09:05,713 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 78 transitions. Word has length 23 [2024-11-19 11:09:05,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:05,713 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 78 transitions. [2024-11-19 11:09:05,713 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 11:09:05,713 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2024-11-19 11:09:05,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-19 11:09:05,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:05,714 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 11:09:05,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 11:09:05,714 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:05,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:05,718 INFO L85 PathProgramCache]: Analyzing trace with hash 624421350, now seen corresponding path program 1 times [2024-11-19 11:09:05,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:05,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121921328] [2024-11-19 11:09:05,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:05,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:05,823 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 11:09:05,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:05,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121921328] [2024-11-19 11:09:05,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121921328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:05,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137503909] [2024-11-19 11:09:05,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:05,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:05,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:05,830 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 11:09:05,832 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 11:09:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:05,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 11:09:05,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:05,960 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 11:09:05,961 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:09:05,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137503909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:05,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:09:05,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2024-11-19 11:09:05,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40452172] [2024-11-19 11:09:05,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:05,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:09:05,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:05,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:09:05,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-19 11:09:05,962 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 11:09:06,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:06,060 INFO L93 Difference]: Finished difference Result 113 states and 140 transitions. [2024-11-19 11:09:06,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:09:06,062 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 11:09:06,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:06,063 INFO L225 Difference]: With dead ends: 113 [2024-11-19 11:09:06,063 INFO L226 Difference]: Without dead ends: 63 [2024-11-19 11:09:06,063 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 11:09:06,064 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 11:09:06,064 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 11:09:06,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-19 11:09:06,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2024-11-19 11:09:06,072 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 11:09:06,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2024-11-19 11:09:06,073 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 24 [2024-11-19 11:09:06,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:06,073 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2024-11-19 11:09:06,074 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 11:09:06,074 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2024-11-19 11:09:06,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 11:09:06,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:06,076 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 11:09:06,089 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 11:09:06,277 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 11:09:06,277 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:06,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:06,278 INFO L85 PathProgramCache]: Analyzing trace with hash 120521327, now seen corresponding path program 1 times [2024-11-19 11:09:06,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:06,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102383646] [2024-11-19 11:09:06,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:06,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:06,325 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 11:09:06,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:06,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102383646] [2024-11-19 11:09:06,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102383646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:06,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:09:06,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:09:06,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376719721] [2024-11-19 11:09:06,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:06,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:09:06,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:06,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:09:06,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:09:06,327 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 11:09:06,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:06,367 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2024-11-19 11:09:06,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:09:06,367 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 11:09:06,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:06,368 INFO L225 Difference]: With dead ends: 83 [2024-11-19 11:09:06,368 INFO L226 Difference]: Without dead ends: 78 [2024-11-19 11:09:06,369 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 11:09:06,369 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 11:09:06,369 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 11:09:06,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-19 11:09:06,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2024-11-19 11:09:06,375 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 11:09:06,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2024-11-19 11:09:06,376 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 25 [2024-11-19 11:09:06,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:06,376 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2024-11-19 11:09:06,376 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 11:09:06,377 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2024-11-19 11:09:06,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-19 11:09:06,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:06,378 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 11:09:06,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 11:09:06,378 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:06,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:06,378 INFO L85 PathProgramCache]: Analyzing trace with hash -473230649, now seen corresponding path program 1 times [2024-11-19 11:09:06,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:06,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768961579] [2024-11-19 11:09:06,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:06,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:06,423 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 11:09:06,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:06,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768961579] [2024-11-19 11:09:06,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768961579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:06,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:09:06,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:09:06,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634720458] [2024-11-19 11:09:06,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:06,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:09:06,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:06,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:09:06,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:09:06,425 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 11:09:06,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:06,455 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2024-11-19 11:09:06,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:09:06,455 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 11:09:06,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:06,456 INFO L225 Difference]: With dead ends: 83 [2024-11-19 11:09:06,456 INFO L226 Difference]: Without dead ends: 81 [2024-11-19 11:09:06,456 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 11:09:06,457 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 11:09:06,457 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 11:09:06,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-19 11:09:06,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2024-11-19 11:09:06,463 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 11:09:06,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2024-11-19 11:09:06,464 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 29 [2024-11-19 11:09:06,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:06,464 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2024-11-19 11:09:06,464 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 11:09:06,464 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2024-11-19 11:09:06,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-19 11:09:06,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:06,465 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 11:09:06,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 11:09:06,466 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:06,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:06,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1773385638, now seen corresponding path program 1 times [2024-11-19 11:09:06,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:06,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975526545] [2024-11-19 11:09:06,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:06,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:06,512 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 11:09:06,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:06,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975526545] [2024-11-19 11:09:06,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975526545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:06,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439327287] [2024-11-19 11:09:06,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:06,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:06,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:06,514 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 11:09:06,515 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 11:09:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:06,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 11:09:06,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:06,624 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 11:09:06,625 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:06,740 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 11:09:06,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439327287] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:06,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:06,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-19 11:09:06,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577511335] [2024-11-19 11:09:06,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:06,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 11:09:06,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:06,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 11:09:06,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-19 11:09:06,742 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 11:09:07,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:07,030 INFO L93 Difference]: Finished difference Result 204 states and 275 transitions. [2024-11-19 11:09:07,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 11:09:07,031 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 11:09:07,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:07,032 INFO L225 Difference]: With dead ends: 204 [2024-11-19 11:09:07,032 INFO L226 Difference]: Without dead ends: 135 [2024-11-19 11:09:07,033 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 11:09:07,034 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 130 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:07,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 548 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:09:07,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-19 11:09:07,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 121. [2024-11-19 11:09:07,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 97 states have internal predecessors, (107), 16 states have call successors, (16), 6 states have call predecessors, (16), 9 states have return successors, (34), 17 states have call predecessors, (34), 15 states have call successors, (34) [2024-11-19 11:09:07,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 157 transitions. [2024-11-19 11:09:07,066 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 157 transitions. Word has length 30 [2024-11-19 11:09:07,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:07,066 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 157 transitions. [2024-11-19 11:09:07,066 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 11:09:07,067 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 157 transitions. [2024-11-19 11:09:07,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-19 11:09:07,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:07,067 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 11:09:07,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 11:09:07,268 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 11:09:07,268 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:07,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:07,268 INFO L85 PathProgramCache]: Analyzing trace with hash -463506674, now seen corresponding path program 2 times [2024-11-19 11:09:07,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:07,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294570089] [2024-11-19 11:09:07,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:07,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:07,280 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:07,280 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:07,375 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 11:09:07,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:07,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294570089] [2024-11-19 11:09:07,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294570089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:07,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71114805] [2024-11-19 11:09:07,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:07,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:07,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:07,378 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 11:09:07,389 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 11:09:07,420 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:07,420 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:07,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 11:09:07,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:07,473 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 11:09:07,473 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:09:07,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71114805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:07,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:09:07,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-19 11:09:07,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38170200] [2024-11-19 11:09:07,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:07,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:09:07,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:07,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:09:07,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:09:07,477 INFO L87 Difference]: Start difference. First operand 121 states and 157 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:09:07,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:07,509 INFO L93 Difference]: Finished difference Result 130 states and 169 transitions. [2024-11-19 11:09:07,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:09:07,509 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 11:09:07,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:07,511 INFO L225 Difference]: With dead ends: 130 [2024-11-19 11:09:07,512 INFO L226 Difference]: Without dead ends: 129 [2024-11-19 11:09:07,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:09:07,513 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 11:09:07,513 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 11:09:07,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-19 11:09:07,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125. [2024-11-19 11:09:07,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 96 states have (on average 1.15625) internal successors, (111), 99 states have internal predecessors, (111), 16 states have call successors, (16), 6 states have call predecessors, (16), 9 states have return successors, (34), 19 states have call predecessors, (34), 15 states have call successors, (34) [2024-11-19 11:09:07,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 161 transitions. [2024-11-19 11:09:07,525 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 161 transitions. Word has length 42 [2024-11-19 11:09:07,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:07,526 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 161 transitions. [2024-11-19 11:09:07,526 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 11:09:07,526 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 161 transitions. [2024-11-19 11:09:07,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-19 11:09:07,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:07,527 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 11:09:07,542 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 11:09:07,727 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 11:09:07,728 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:07,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:07,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1483804933, now seen corresponding path program 1 times [2024-11-19 11:09:07,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:07,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898374651] [2024-11-19 11:09:07,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:07,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:07,773 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 11:09:07,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:07,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898374651] [2024-11-19 11:09:07,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898374651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:07,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591608003] [2024-11-19 11:09:07,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:07,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:07,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:07,776 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 11:09:07,777 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 11:09:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:07,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 11:09:07,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:07,966 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:09:07,966 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:08,128 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 11:09:08,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591608003] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:08,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:08,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 23 [2024-11-19 11:09:08,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17460782] [2024-11-19 11:09:08,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:08,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 11:09:08,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:08,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 11:09:08,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2024-11-19 11:09:08,131 INFO L87 Difference]: Start difference. First operand 125 states and 161 transitions. Second operand has 23 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 17 states have internal predecessors, (72), 11 states have call successors, (15), 8 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:09:08,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:08,718 INFO L93 Difference]: Finished difference Result 321 states and 423 transitions. [2024-11-19 11:09:08,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 11:09:08,719 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 17 states have internal predecessors, (72), 11 states have call successors, (15), 8 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 43 [2024-11-19 11:09:08,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:08,720 INFO L225 Difference]: With dead ends: 321 [2024-11-19 11:09:08,720 INFO L226 Difference]: Without dead ends: 211 [2024-11-19 11:09:08,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 70 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2024-11-19 11:09:08,722 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 174 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:08,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1015 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 11:09:08,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-19 11:09:08,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 191. [2024-11-19 11:09:08,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 149 states have (on average 1.1543624161073827) internal successors, (172), 151 states have internal predecessors, (172), 25 states have call successors, (25), 10 states have call predecessors, (25), 13 states have return successors, (48), 29 states have call predecessors, (48), 24 states have call successors, (48) [2024-11-19 11:09:08,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 245 transitions. [2024-11-19 11:09:08,739 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 245 transitions. Word has length 43 [2024-11-19 11:09:08,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:08,740 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 245 transitions. [2024-11-19 11:09:08,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 17 states have internal predecessors, (72), 11 states have call successors, (15), 8 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:09:08,740 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 245 transitions. [2024-11-19 11:09:08,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-19 11:09:08,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:08,741 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:08,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 11:09:08,941 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 11:09:08,942 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:08,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:08,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1504919224, now seen corresponding path program 1 times [2024-11-19 11:09:08,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:08,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707098953] [2024-11-19 11:09:08,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:08,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:09,077 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-19 11:09:09,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:09,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707098953] [2024-11-19 11:09:09,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707098953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:09,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524859465] [2024-11-19 11:09:09,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:09,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:09,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:09,079 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 11:09:09,081 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 11:09:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:09,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 11:09:09,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:09,490 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 13 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:09:09,490 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:09,851 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 11:09:09,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524859465] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:09,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:09,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 19, 19] total 24 [2024-11-19 11:09:09,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537314805] [2024-11-19 11:09:09,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:09,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 11:09:09,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:09,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 11:09:09,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2024-11-19 11:09:09,853 INFO L87 Difference]: Start difference. First operand 191 states and 245 transitions. Second operand has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 17 states have internal predecessors, (73), 11 states have call successors, (14), 9 states have call predecessors, (14), 5 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 11:09:10,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:10,485 INFO L93 Difference]: Finished difference Result 406 states and 525 transitions. [2024-11-19 11:09:10,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-19 11:09:10,486 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 17 states have internal predecessors, (73), 11 states have call successors, (14), 9 states have call predecessors, (14), 5 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 60 [2024-11-19 11:09:10,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:10,487 INFO L225 Difference]: With dead ends: 406 [2024-11-19 11:09:10,487 INFO L226 Difference]: Without dead ends: 236 [2024-11-19 11:09:10,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 93 SyntacticMatches, 16 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2024-11-19 11:09:10,489 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 195 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:10,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1200 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 11:09:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-19 11:09:10,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 213. [2024-11-19 11:09:10,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 167 states have (on average 1.1497005988023952) internal successors, (192), 168 states have internal predecessors, (192), 28 states have call successors, (28), 11 states have call predecessors, (28), 14 states have return successors, (54), 33 states have call predecessors, (54), 27 states have call successors, (54) [2024-11-19 11:09:10,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 274 transitions. [2024-11-19 11:09:10,505 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 274 transitions. Word has length 60 [2024-11-19 11:09:10,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:10,505 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 274 transitions. [2024-11-19 11:09:10,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 17 states have internal predecessors, (73), 11 states have call successors, (14), 9 states have call predecessors, (14), 5 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 11:09:10,505 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 274 transitions. [2024-11-19 11:09:10,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-19 11:09:10,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:10,507 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:10,520 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 11:09:10,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 11:09:10,707 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:10,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:10,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1710163946, now seen corresponding path program 2 times [2024-11-19 11:09:10,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:10,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193853003] [2024-11-19 11:09:10,708 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:10,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:10,717 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:10,718 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:10,776 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-19 11:09:10,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:10,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193853003] [2024-11-19 11:09:10,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193853003] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:10,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718576600] [2024-11-19 11:09:10,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:10,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:10,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:10,782 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 11:09:10,784 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 11:09:10,824 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:10,824 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:10,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 11:09:10,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:10,855 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-19 11:09:10,855 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:09:10,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718576600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:10,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:09:10,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-19 11:09:10,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068493084] [2024-11-19 11:09:10,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:10,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:09:10,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:10,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:09:10,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:09:10,857 INFO L87 Difference]: Start difference. First operand 213 states and 274 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:09:10,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:10,884 INFO L93 Difference]: Finished difference Result 226 states and 294 transitions. [2024-11-19 11:09:10,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:09:10,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60 [2024-11-19 11:09:10,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:10,886 INFO L225 Difference]: With dead ends: 226 [2024-11-19 11:09:10,886 INFO L226 Difference]: Without dead ends: 225 [2024-11-19 11:09:10,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 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 11:09:10,887 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 11:09:10,887 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 11:09:10,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-19 11:09:10,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 221. [2024-11-19 11:09:10,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 175 states have (on average 1.1428571428571428) internal successors, (200), 172 states have internal predecessors, (200), 28 states have call successors, (28), 11 states have call predecessors, (28), 14 states have return successors, (54), 37 states have call predecessors, (54), 27 states have call successors, (54) [2024-11-19 11:09:10,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 282 transitions. [2024-11-19 11:09:10,901 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 282 transitions. Word has length 60 [2024-11-19 11:09:10,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:10,901 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 282 transitions. [2024-11-19 11:09:10,902 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 11:09:10,902 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 282 transitions. [2024-11-19 11:09:10,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-19 11:09:10,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:10,903 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:10,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 11:09:11,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:11,104 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:11,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:11,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1475474675, now seen corresponding path program 1 times [2024-11-19 11:09:11,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:11,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604470545] [2024-11-19 11:09:11,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:11,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:11,186 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-19 11:09:11,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:11,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604470545] [2024-11-19 11:09:11,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604470545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:11,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700846953] [2024-11-19 11:09:11,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:11,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:11,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:11,189 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 11:09:11,190 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 11:09:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:11,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 11:09:11,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:11,265 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-19 11:09:11,265 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:09:11,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700846953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:11,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:09:11,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-19 11:09:11,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130823743] [2024-11-19 11:09:11,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:11,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:09:11,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:11,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:09:11,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:09:11,267 INFO L87 Difference]: Start difference. First operand 221 states and 282 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:09:11,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:11,297 INFO L93 Difference]: Finished difference Result 237 states and 303 transitions. [2024-11-19 11:09:11,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:09:11,297 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2024-11-19 11:09:11,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:11,299 INFO L225 Difference]: With dead ends: 237 [2024-11-19 11:09:11,299 INFO L226 Difference]: Without dead ends: 236 [2024-11-19 11:09:11,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 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 11:09:11,299 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:11,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 149 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:09:11,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-19 11:09:11,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 217. [2024-11-19 11:09:11,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 172 states have (on average 1.1453488372093024) internal successors, (197), 169 states have internal predecessors, (197), 27 states have call successors, (27), 11 states have call predecessors, (27), 14 states have return successors, (51), 36 states have call predecessors, (51), 26 states have call successors, (51) [2024-11-19 11:09:11,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 275 transitions. [2024-11-19 11:09:11,313 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 275 transitions. Word has length 61 [2024-11-19 11:09:11,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:11,313 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 275 transitions. [2024-11-19 11:09:11,313 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 11:09:11,313 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 275 transitions. [2024-11-19 11:09:11,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-19 11:09:11,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:11,314 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:11,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 11:09:11,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:11,520 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:11,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:11,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1055529936, now seen corresponding path program 1 times [2024-11-19 11:09:11,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:11,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655622803] [2024-11-19 11:09:11,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:11,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-19 11:09:11,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:11,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655622803] [2024-11-19 11:09:11,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655622803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:11,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:09:11,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:09:11,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194424254] [2024-11-19 11:09:11,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:11,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:09:11,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:11,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:09:11,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:09:11,594 INFO L87 Difference]: Start difference. First operand 217 states and 275 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 11:09:11,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:11,629 INFO L93 Difference]: Finished difference Result 227 states and 287 transitions. [2024-11-19 11:09:11,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:09:11,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 77 [2024-11-19 11:09:11,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:11,631 INFO L225 Difference]: With dead ends: 227 [2024-11-19 11:09:11,634 INFO L226 Difference]: Without dead ends: 226 [2024-11-19 11:09:11,634 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 11:09:11,635 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 2 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 143 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 11:09:11,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 143 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:09:11,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-19 11:09:11,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 211. [2024-11-19 11:09:11,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 168 states have (on average 1.1488095238095237) internal successors, (193), 164 states have internal predecessors, (193), 26 states have call successors, (26), 11 states have call predecessors, (26), 13 states have return successors, (43), 35 states have call predecessors, (43), 25 states have call successors, (43) [2024-11-19 11:09:11,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 262 transitions. [2024-11-19 11:09:11,644 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 262 transitions. Word has length 77 [2024-11-19 11:09:11,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:11,644 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 262 transitions. [2024-11-19 11:09:11,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 11:09:11,644 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 262 transitions. [2024-11-19 11:09:11,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 11:09:11,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:11,645 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:11,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 11:09:11,645 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:11,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:11,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1329146264, now seen corresponding path program 1 times [2024-11-19 11:09:11,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:11,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770372590] [2024-11-19 11:09:11,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:11,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-19 11:09:11,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:11,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770372590] [2024-11-19 11:09:11,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770372590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:11,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772945987] [2024-11-19 11:09:11,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:11,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:11,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:11,706 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 11:09:11,707 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 11:09:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:11,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 11:09:11,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:11,950 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 58 proven. 43 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 11:09:11,950 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:12,177 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 58 proven. 43 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 11:09:12,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772945987] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:12,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:12,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 19, 19] total 23 [2024-11-19 11:09:12,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726908477] [2024-11-19 11:09:12,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:12,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 11:09:12,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:12,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 11:09:12,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2024-11-19 11:09:12,179 INFO L87 Difference]: Start difference. First operand 211 states and 262 transitions. Second operand has 23 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 16 states have internal predecessors, (84), 11 states have call successors, (16), 8 states have call predecessors, (16), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-19 11:09:12,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:12,711 INFO L93 Difference]: Finished difference Result 583 states and 775 transitions. [2024-11-19 11:09:12,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-19 11:09:12,712 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 16 states have internal predecessors, (84), 11 states have call successors, (16), 8 states have call predecessors, (16), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 79 [2024-11-19 11:09:12,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:12,714 INFO L225 Difference]: With dead ends: 583 [2024-11-19 11:09:12,714 INFO L226 Difference]: Without dead ends: 393 [2024-11-19 11:09:12,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 130 SyntacticMatches, 16 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=1376, Unknown=0, NotChecked=0, Total=1640 [2024-11-19 11:09:12,716 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 265 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:12,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 383 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 11:09:12,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-19 11:09:12,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 362. [2024-11-19 11:09:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 290 states have (on average 1.1413793103448275) internal successors, (331), 281 states have internal predecessors, (331), 45 states have call successors, (45), 18 states have call predecessors, (45), 23 states have return successors, (77), 62 states have call predecessors, (77), 44 states have call successors, (77) [2024-11-19 11:09:12,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 453 transitions. [2024-11-19 11:09:12,730 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 453 transitions. Word has length 79 [2024-11-19 11:09:12,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:12,730 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 453 transitions. [2024-11-19 11:09:12,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 16 states have internal predecessors, (84), 11 states have call successors, (16), 8 states have call predecessors, (16), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-19 11:09:12,730 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 453 transitions. [2024-11-19 11:09:12,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-19 11:09:12,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:12,731 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:12,745 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 11:09:12,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-19 11:09:12,935 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:12,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:12,936 INFO L85 PathProgramCache]: Analyzing trace with hash -932529083, now seen corresponding path program 1 times [2024-11-19 11:09:12,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:12,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233231164] [2024-11-19 11:09:12,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:12,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:12,988 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-19 11:09:12,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:12,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233231164] [2024-11-19 11:09:12,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233231164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:12,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:09:12,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:09:12,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151628686] [2024-11-19 11:09:12,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:12,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:09:12,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:12,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:09:12,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:09:12,989 INFO L87 Difference]: Start difference. First operand 362 states and 453 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 11:09:13,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:13,018 INFO L93 Difference]: Finished difference Result 390 states and 492 transitions. [2024-11-19 11:09:13,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:09:13,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 74 [2024-11-19 11:09:13,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:13,020 INFO L225 Difference]: With dead ends: 390 [2024-11-19 11:09:13,020 INFO L226 Difference]: Without dead ends: 389 [2024-11-19 11:09:13,021 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 11:09:13,021 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 11:09:13,021 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 11:09:13,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-19 11:09:13,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 375. [2024-11-19 11:09:13,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 301 states have (on average 1.1362126245847175) internal successors, (342), 291 states have internal predecessors, (342), 45 states have call successors, (45), 18 states have call predecessors, (45), 25 states have return successors, (86), 65 states have call predecessors, (86), 44 states have call successors, (86) [2024-11-19 11:09:13,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 473 transitions. [2024-11-19 11:09:13,038 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 473 transitions. Word has length 74 [2024-11-19 11:09:13,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:13,038 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 473 transitions. [2024-11-19 11:09:13,038 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 11:09:13,053 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 473 transitions. [2024-11-19 11:09:13,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-19 11:09:13,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:13,054 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:13,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 11:09:13,055 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:13,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:13,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1524107692, now seen corresponding path program 1 times [2024-11-19 11:09:13,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:13,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888244577] [2024-11-19 11:09:13,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:13,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:13,163 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-19 11:09:13,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:13,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888244577] [2024-11-19 11:09:13,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888244577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:13,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149661971] [2024-11-19 11:09:13,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:13,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:13,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:13,165 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 11:09:13,167 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 11:09:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:13,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 11:09:13,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:13,299 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-19 11:09:13,299 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:09:13,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149661971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:13,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:09:13,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 14 [2024-11-19 11:09:13,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761631028] [2024-11-19 11:09:13,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:13,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 11:09:13,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:13,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 11:09:13,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-19 11:09:13,300 INFO L87 Difference]: Start difference. First operand 375 states and 473 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 11:09:13,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:13,363 INFO L93 Difference]: Finished difference Result 481 states and 631 transitions. [2024-11-19 11:09:13,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 11:09:13,363 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 75 [2024-11-19 11:09:13,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:13,365 INFO L225 Difference]: With dead ends: 481 [2024-11-19 11:09:13,365 INFO L226 Difference]: Without dead ends: 480 [2024-11-19 11:09:13,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 70 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 11:09:13,366 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 4 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:13,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 202 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:09:13,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-19 11:09:13,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 411. [2024-11-19 11:09:13,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 330 states have (on average 1.1393939393939394) internal successors, (376), 317 states have internal predecessors, (376), 48 states have call successors, (48), 18 states have call predecessors, (48), 29 states have return successors, (111), 75 states have call predecessors, (111), 47 states have call successors, (111) [2024-11-19 11:09:13,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 535 transitions. [2024-11-19 11:09:13,386 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 535 transitions. Word has length 75 [2024-11-19 11:09:13,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:13,386 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 535 transitions. [2024-11-19 11:09:13,387 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 11:09:13,387 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 535 transitions. [2024-11-19 11:09:13,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-19 11:09:13,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:13,387 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:13,401 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 11:09:13,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 11:09:13,594 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:13,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:13,594 INFO L85 PathProgramCache]: Analyzing trace with hash -121328009, now seen corresponding path program 1 times [2024-11-19 11:09:13,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:13,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997037061] [2024-11-19 11:09:13,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:13,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-19 11:09:13,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:13,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997037061] [2024-11-19 11:09:13,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997037061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:13,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962480509] [2024-11-19 11:09:13,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:13,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:13,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:13,654 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 11:09:13,655 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 11:09:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:13,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 11:09:13,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:13,981 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 75 proven. 48 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 11:09:13,982 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:14,341 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 75 proven. 48 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 11:09:14,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962480509] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:14,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:14,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 21, 21] total 42 [2024-11-19 11:09:14,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712969486] [2024-11-19 11:09:14,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:14,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-19 11:09:14,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:14,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-19 11:09:14,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1525, Unknown=0, NotChecked=0, Total=1722 [2024-11-19 11:09:14,343 INFO L87 Difference]: Start difference. First operand 411 states and 535 transitions. Second operand has 42 states, 40 states have (on average 3.325) internal successors, (133), 26 states have internal predecessors, (133), 21 states have call successors, (27), 17 states have call predecessors, (27), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-19 11:09:15,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:15,206 INFO L93 Difference]: Finished difference Result 842 states and 1139 transitions. [2024-11-19 11:09:15,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-19 11:09:15,206 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 40 states have (on average 3.325) internal successors, (133), 26 states have internal predecessors, (133), 21 states have call successors, (27), 17 states have call predecessors, (27), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 84 [2024-11-19 11:09:15,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:15,209 INFO L225 Difference]: With dead ends: 842 [2024-11-19 11:09:15,209 INFO L226 Difference]: Without dead ends: 487 [2024-11-19 11:09:15,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 143 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1341 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=712, Invalid=3980, Unknown=0, NotChecked=0, Total=4692 [2024-11-19 11:09:15,212 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 533 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:15,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 542 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 11:09:15,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-19 11:09:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 436. [2024-11-19 11:09:15,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 348 states have (on average 1.1293103448275863) internal successors, (393), 339 states have internal predecessors, (393), 52 states have call successors, (52), 20 states have call predecessors, (52), 32 states have return successors, (113), 76 states have call predecessors, (113), 51 states have call successors, (113) [2024-11-19 11:09:15,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 558 transitions. [2024-11-19 11:09:15,230 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 558 transitions. Word has length 84 [2024-11-19 11:09:15,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:15,231 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 558 transitions. [2024-11-19 11:09:15,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 40 states have (on average 3.325) internal successors, (133), 26 states have internal predecessors, (133), 21 states have call successors, (27), 17 states have call predecessors, (27), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-19 11:09:15,231 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 558 transitions. [2024-11-19 11:09:15,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 11:09:15,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:15,232 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:15,244 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 11:09:15,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:15,437 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:15,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:15,437 INFO L85 PathProgramCache]: Analyzing trace with hash 679118242, now seen corresponding path program 1 times [2024-11-19 11:09:15,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:15,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684372731] [2024-11-19 11:09:15,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:15,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:15,491 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-19 11:09:15,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:15,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684372731] [2024-11-19 11:09:15,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684372731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:15,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:09:15,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:09:15,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438690796] [2024-11-19 11:09:15,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:15,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:09:15,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:15,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:09:15,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:09:15,493 INFO L87 Difference]: Start difference. First operand 436 states and 558 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 11:09:15,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:15,521 INFO L93 Difference]: Finished difference Result 452 states and 577 transitions. [2024-11-19 11:09:15,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:09:15,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 79 [2024-11-19 11:09:15,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:15,524 INFO L225 Difference]: With dead ends: 452 [2024-11-19 11:09:15,524 INFO L226 Difference]: Without dead ends: 451 [2024-11-19 11:09:15,525 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 11:09:15,525 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:15,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 111 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:09:15,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-19 11:09:15,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 438. [2024-11-19 11:09:15,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 349 states have (on average 1.1232091690544412) internal successors, (392), 341 states have internal predecessors, (392), 52 states have call successors, (52), 20 states have call predecessors, (52), 33 states have return successors, (115), 76 states have call predecessors, (115), 51 states have call successors, (115) [2024-11-19 11:09:15,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 559 transitions. [2024-11-19 11:09:15,568 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 559 transitions. Word has length 79 [2024-11-19 11:09:15,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:15,568 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 559 transitions. [2024-11-19 11:09:15,569 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 11:09:15,569 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 559 transitions. [2024-11-19 11:09:15,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-19 11:09:15,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:15,570 INFO L215 NwaCegarLoop]: trace histogram [7, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:15,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 11:09:15,570 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:15,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:15,571 INFO L85 PathProgramCache]: Analyzing trace with hash -916701128, now seen corresponding path program 1 times [2024-11-19 11:09:15,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:15,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14377249] [2024-11-19 11:09:15,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:15,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:15,805 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 50 proven. 63 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 11:09:15,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:15,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14377249] [2024-11-19 11:09:15,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14377249] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:15,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956959833] [2024-11-19 11:09:15,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:15,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:15,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:15,811 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 11:09:15,812 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 11:09:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:15,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 11:09:15,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:15,953 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-19 11:09:15,953 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:16,139 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-19 11:09:16,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956959833] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:16,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:16,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8, 7] total 31 [2024-11-19 11:09:16,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422472353] [2024-11-19 11:09:16,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:16,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-19 11:09:16,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:16,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-19 11:09:16,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2024-11-19 11:09:16,141 INFO L87 Difference]: Start difference. First operand 438 states and 559 transitions. Second operand has 31 states, 30 states have (on average 3.3) internal successors, (99), 25 states have internal predecessors, (99), 13 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-19 11:09:17,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:17,218 INFO L93 Difference]: Finished difference Result 940 states and 1243 transitions. [2024-11-19 11:09:17,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-19 11:09:17,218 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.3) internal successors, (99), 25 states have internal predecessors, (99), 13 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) Word has length 92 [2024-11-19 11:09:17,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:17,221 INFO L225 Difference]: With dead ends: 940 [2024-11-19 11:09:17,221 INFO L226 Difference]: Without dead ends: 577 [2024-11-19 11:09:17,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 178 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1103 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=612, Invalid=4080, Unknown=0, NotChecked=0, Total=4692 [2024-11-19 11:09:17,224 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 265 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:17,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 442 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 11:09:17,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-19 11:09:17,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 437. [2024-11-19 11:09:17,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 346 states have (on average 1.1098265895953756) internal successors, (384), 343 states have internal predecessors, (384), 53 states have call successors, (53), 20 states have call predecessors, (53), 34 states have return successors, (131), 73 states have call predecessors, (131), 52 states have call successors, (131) [2024-11-19 11:09:17,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 568 transitions. [2024-11-19 11:09:17,245 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 568 transitions. Word has length 92 [2024-11-19 11:09:17,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:17,245 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 568 transitions. [2024-11-19 11:09:17,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.3) internal successors, (99), 25 states have internal predecessors, (99), 13 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-19 11:09:17,245 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 568 transitions. [2024-11-19 11:09:17,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-19 11:09:17,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:17,248 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:17,260 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 11:09:17,448 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,SelfDestructingSolverStorable20 [2024-11-19 11:09:17,449 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:17,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:17,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1108261630, now seen corresponding path program 1 times [2024-11-19 11:09:17,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:17,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327715597] [2024-11-19 11:09:17,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:17,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:17,630 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 14 proven. 83 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-19 11:09:17,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:17,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327715597] [2024-11-19 11:09:17,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327715597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:17,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502196214] [2024-11-19 11:09:17,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:17,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:17,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:17,632 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 11:09:17,634 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 11:09:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:17,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 11:09:17,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:17,716 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 34 proven. 73 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 11:09:17,717 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:17,921 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 14 proven. 83 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-19 11:09:17,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502196214] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:17,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:17,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 19 [2024-11-19 11:09:17,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864470240] [2024-11-19 11:09:17,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:17,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 11:09:17,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:17,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 11:09:17,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-11-19 11:09:17,923 INFO L87 Difference]: Start difference. First operand 437 states and 568 transitions. Second operand has 19 states, 18 states have (on average 4.388888888888889) internal successors, (79), 14 states have internal predecessors, (79), 10 states have call successors, (14), 7 states have call predecessors, (14), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 11:09:18,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:18,245 INFO L93 Difference]: Finished difference Result 841 states and 1097 transitions. [2024-11-19 11:09:18,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 11:09:18,245 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.388888888888889) internal successors, (79), 14 states have internal predecessors, (79), 10 states have call successors, (14), 7 states have call predecessors, (14), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 88 [2024-11-19 11:09:18,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:18,247 INFO L225 Difference]: With dead ends: 841 [2024-11-19 11:09:18,247 INFO L226 Difference]: Without dead ends: 468 [2024-11-19 11:09:18,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 167 SyntacticMatches, 13 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2024-11-19 11:09:18,249 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 158 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:18,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 586 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:09:18,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-19 11:09:18,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 437. [2024-11-19 11:09:18,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 346 states have (on average 1.1098265895953756) internal successors, (384), 343 states have internal predecessors, (384), 53 states have call successors, (53), 20 states have call predecessors, (53), 34 states have return successors, (123), 73 states have call predecessors, (123), 52 states have call successors, (123) [2024-11-19 11:09:18,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 560 transitions. [2024-11-19 11:09:18,268 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 560 transitions. Word has length 88 [2024-11-19 11:09:18,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:18,269 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 560 transitions. [2024-11-19 11:09:18,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.388888888888889) internal successors, (79), 14 states have internal predecessors, (79), 10 states have call successors, (14), 7 states have call predecessors, (14), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 11:09:18,269 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 560 transitions. [2024-11-19 11:09:18,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-19 11:09:18,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:18,270 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:18,285 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 11:09:18,470 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,SelfDestructingSolverStorable21 [2024-11-19 11:09:18,471 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:18,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:18,472 INFO L85 PathProgramCache]: Analyzing trace with hash 870027817, now seen corresponding path program 1 times [2024-11-19 11:09:18,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:18,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908008690] [2024-11-19 11:09:18,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:18,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:18,609 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 11:09:18,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:18,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908008690] [2024-11-19 11:09:18,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908008690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:18,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904833265] [2024-11-19 11:09:18,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:18,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:18,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:18,614 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 11:09:18,615 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 11:09:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:18,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 11:09:18,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:18,694 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 11:09:18,694 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:18,833 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 11:09:18,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904833265] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:18,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:18,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 16 [2024-11-19 11:09:18,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709951836] [2024-11-19 11:09:18,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:18,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 11:09:18,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:18,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 11:09:18,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-19 11:09:18,834 INFO L87 Difference]: Start difference. First operand 437 states and 560 transitions. Second operand has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 11 states have internal predecessors, (67), 7 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 11:09:19,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:19,042 INFO L93 Difference]: Finished difference Result 793 states and 1022 transitions. [2024-11-19 11:09:19,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 11:09:19,043 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 11 states have internal predecessors, (67), 7 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 89 [2024-11-19 11:09:19,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:19,045 INFO L225 Difference]: With dead ends: 793 [2024-11-19 11:09:19,045 INFO L226 Difference]: Without dead ends: 441 [2024-11-19 11:09:19,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 170 SyntacticMatches, 12 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-19 11:09:19,047 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 142 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:19,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 442 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:09:19,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-19 11:09:19,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 431. [2024-11-19 11:09:19,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 340 states have (on average 1.111764705882353) internal successors, (378), 340 states have internal predecessors, (378), 53 states have call successors, (53), 20 states have call predecessors, (53), 34 states have return successors, (120), 70 states have call predecessors, (120), 52 states have call successors, (120) [2024-11-19 11:09:19,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 551 transitions. [2024-11-19 11:09:19,065 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 551 transitions. Word has length 89 [2024-11-19 11:09:19,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:19,065 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 551 transitions. [2024-11-19 11:09:19,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 11 states have internal predecessors, (67), 7 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 11:09:19,066 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 551 transitions. [2024-11-19 11:09:19,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-19 11:09:19,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:19,067 INFO L215 NwaCegarLoop]: trace histogram [7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:19,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-19 11:09:19,268 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,SelfDestructingSolverStorable22 [2024-11-19 11:09:19,268 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:19,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:19,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1952719999, now seen corresponding path program 1 times [2024-11-19 11:09:19,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:19,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842397281] [2024-11-19 11:09:19,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:19,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:19,512 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 47 proven. 72 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 11:09:19,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:19,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842397281] [2024-11-19 11:09:19,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842397281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:19,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727110517] [2024-11-19 11:09:19,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:19,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:19,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:19,514 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 11:09:19,516 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 11:09:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:19,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 11:09:19,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:19,716 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-19 11:09:19,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:20,063 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-19 11:09:20,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727110517] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:20,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:20,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 9, 11] total 36 [2024-11-19 11:09:20,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468463970] [2024-11-19 11:09:20,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:20,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-19 11:09:20,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-19 11:09:20,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1156, Unknown=0, NotChecked=0, Total=1260 [2024-11-19 11:09:20,067 INFO L87 Difference]: Start difference. First operand 431 states and 551 transitions. Second operand has 36 states, 35 states have (on average 3.342857142857143) internal successors, (117), 30 states have internal predecessors, (117), 16 states have call successors, (19), 7 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-19 11:09:22,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:22,052 INFO L93 Difference]: Finished difference Result 1151 states and 1605 transitions. [2024-11-19 11:09:22,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-11-19 11:09:22,052 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.342857142857143) internal successors, (117), 30 states have internal predecessors, (117), 16 states have call successors, (19), 7 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 10 states have call successors, (16) Word has length 93 [2024-11-19 11:09:22,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:22,058 INFO L225 Difference]: With dead ends: 1151 [2024-11-19 11:09:22,058 INFO L226 Difference]: Without dead ends: 772 [2024-11-19 11:09:22,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 190 SyntacticMatches, 3 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3142 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1349, Invalid=9781, Unknown=0, NotChecked=0, Total=11130 [2024-11-19 11:09:22,063 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 391 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 1853 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:22,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 503 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1853 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 11:09:22,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2024-11-19 11:09:22,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 605. [2024-11-19 11:09:22,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 479 states have (on average 1.1085594989561587) internal successors, (531), 470 states have internal predecessors, (531), 71 states have call successors, (71), 20 states have call predecessors, (71), 51 states have return successors, (261), 114 states have call predecessors, (261), 70 states have call successors, (261) [2024-11-19 11:09:22,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 863 transitions. [2024-11-19 11:09:22,094 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 863 transitions. Word has length 93 [2024-11-19 11:09:22,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:22,094 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 863 transitions. [2024-11-19 11:09:22,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.342857142857143) internal successors, (117), 30 states have internal predecessors, (117), 16 states have call successors, (19), 7 states have call predecessors, (19), 8 states have return successors, (16), 14 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-19 11:09:22,095 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 863 transitions. [2024-11-19 11:09:22,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-19 11:09:22,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:22,096 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:22,112 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 11:09:22,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:22,296 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:22,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:22,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1507205499, now seen corresponding path program 1 times [2024-11-19 11:09:22,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:22,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767392065] [2024-11-19 11:09:22,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:22,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:22,385 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-19 11:09:22,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:22,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767392065] [2024-11-19 11:09:22,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767392065] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:22,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390188994] [2024-11-19 11:09:22,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:22,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:22,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:22,390 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 11:09:22,391 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 11:09:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:22,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 11:09:22,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:22,598 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 33 proven. 100 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-19 11:09:22,598 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 33 proven. 100 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-19 11:09:22,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390188994] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:22,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:22,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 17, 17] total 21 [2024-11-19 11:09:22,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351539156] [2024-11-19 11:09:22,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:22,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-19 11:09:22,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:22,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-19 11:09:22,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-11-19 11:09:22,888 INFO L87 Difference]: Start difference. First operand 605 states and 863 transitions. Second operand has 21 states, 20 states have (on average 4.7) internal successors, (94), 16 states have internal predecessors, (94), 12 states have call successors, (17), 6 states have call predecessors, (17), 4 states have return successors, (12), 4 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-19 11:09:23,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:23,187 INFO L93 Difference]: Finished difference Result 1108 states and 1642 transitions. [2024-11-19 11:09:23,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 11:09:23,188 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.7) internal successors, (94), 16 states have internal predecessors, (94), 12 states have call successors, (17), 6 states have call predecessors, (17), 4 states have return successors, (12), 4 states have call predecessors, (12), 7 states have call successors, (12) Word has length 106 [2024-11-19 11:09:23,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:23,191 INFO L225 Difference]: With dead ends: 1108 [2024-11-19 11:09:23,191 INFO L226 Difference]: Without dead ends: 567 [2024-11-19 11:09:23,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 191 SyntacticMatches, 13 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2024-11-19 11:09:23,194 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 205 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:23,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 469 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:09:23,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-19 11:09:23,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 557. [2024-11-19 11:09:23,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 439 states have (on average 1.1002277904328017) internal successors, (483), 436 states have internal predecessors, (483), 66 states have call successors, (66), 20 states have call predecessors, (66), 48 states have return successors, (199), 100 states have call predecessors, (199), 65 states have call successors, (199) [2024-11-19 11:09:23,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 748 transitions. [2024-11-19 11:09:23,215 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 748 transitions. Word has length 106 [2024-11-19 11:09:23,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:23,215 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 748 transitions. [2024-11-19 11:09:23,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.7) internal successors, (94), 16 states have internal predecessors, (94), 12 states have call successors, (17), 6 states have call predecessors, (17), 4 states have return successors, (12), 4 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-19 11:09:23,216 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 748 transitions. [2024-11-19 11:09:23,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-19 11:09:23,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:23,216 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:23,230 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 11:09:23,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:23,417 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:23,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:23,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1606036922, now seen corresponding path program 2 times [2024-11-19 11:09:23,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:23,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968565226] [2024-11-19 11:09:23,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:23,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:23,425 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:23,426 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:23,678 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 8 proven. 27 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-19 11:09:23,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:23,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968565226] [2024-11-19 11:09:23,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968565226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:23,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769579463] [2024-11-19 11:09:23,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:23,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:23,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:23,680 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 11:09:23,681 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 11:09:23,724 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:23,724 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:23,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 11:09:23,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:23,872 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-19 11:09:23,873 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:24,307 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 14 proven. 21 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-19 11:09:24,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769579463] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:24,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:24,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 34 [2024-11-19 11:09:24,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312395437] [2024-11-19 11:09:24,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:24,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-19 11:09:24,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:24,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-19 11:09:24,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1040, Unknown=0, NotChecked=0, Total=1190 [2024-11-19 11:09:24,310 INFO L87 Difference]: Start difference. First operand 557 states and 748 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 11:09:24,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:24,804 INFO L93 Difference]: Finished difference Result 1074 states and 1626 transitions. [2024-11-19 11:09:24,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-19 11:09:24,804 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 107 [2024-11-19 11:09:24,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:24,809 INFO L225 Difference]: With dead ends: 1074 [2024-11-19 11:09:24,809 INFO L226 Difference]: Without dead ends: 1071 [2024-11-19 11:09:24,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 190 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 831 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=409, Invalid=2561, Unknown=0, NotChecked=0, Total=2970 [2024-11-19 11:09:24,810 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 44 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:24,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 620 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:09:24,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-11-19 11:09:24,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 794. [2024-11-19 11:09:24,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 630 states have (on average 1.0825396825396825) internal successors, (682), 617 states have internal predecessors, (682), 86 states have call successors, (86), 20 states have call predecessors, (86), 74 states have return successors, (390), 156 states have call predecessors, (390), 85 states have call successors, (390) [2024-11-19 11:09:24,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1158 transitions. [2024-11-19 11:09:24,852 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1158 transitions. Word has length 107 [2024-11-19 11:09:24,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:24,853 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1158 transitions. [2024-11-19 11:09:24,853 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 11:09:24,853 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1158 transitions. [2024-11-19 11:09:24,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-19 11:09:24,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:24,854 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:24,872 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 11:09:25,058 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,SelfDestructingSolverStorable25 [2024-11-19 11:09:25,059 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:25,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:25,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1752462871, now seen corresponding path program 1 times [2024-11-19 11:09:25,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:25,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697965214] [2024-11-19 11:09:25,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:25,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 12 proven. 24 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-19 11:09:25,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:25,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697965214] [2024-11-19 11:09:25,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697965214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:25,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546100809] [2024-11-19 11:09:25,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:25,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:25,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:25,252 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:25,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-19 11:09:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:25,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-19 11:09:25,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:25,442 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 11:09:25,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:25,868 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-19 11:09:25,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546100809] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:25,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:25,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 16] total 33 [2024-11-19 11:09:25,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678447602] [2024-11-19 11:09:25,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:25,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-19 11:09:25,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:25,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-19 11:09:25,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=970, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 11:09:25,870 INFO L87 Difference]: Start difference. First operand 794 states and 1158 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 11:09:26,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:26,218 INFO L93 Difference]: Finished difference Result 1225 states and 1902 transitions. [2024-11-19 11:09:26,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-19 11:09:26,218 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 108 [2024-11-19 11:09:26,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:26,224 INFO L225 Difference]: With dead ends: 1225 [2024-11-19 11:09:26,224 INFO L226 Difference]: Without dead ends: 1223 [2024-11-19 11:09:26,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 193 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 768 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=273, Invalid=1707, Unknown=0, NotChecked=0, Total=1980 [2024-11-19 11:09:26,225 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 30 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:26,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 661 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:09:26,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2024-11-19 11:09:26,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 900. [2024-11-19 11:09:26,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 714 states have (on average 1.072829131652661) internal successors, (766), 699 states have internal predecessors, (766), 95 states have call successors, (95), 20 states have call predecessors, (95), 87 states have return successors, (534), 180 states have call predecessors, (534), 94 states have call successors, (534) [2024-11-19 11:09:26,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1395 transitions. [2024-11-19 11:09:26,272 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1395 transitions. Word has length 108 [2024-11-19 11:09:26,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:26,273 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1395 transitions. [2024-11-19 11:09:26,273 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 11:09:26,273 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1395 transitions. [2024-11-19 11:09:26,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 11:09:26,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:26,274 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:26,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-19 11:09:26,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-19 11:09:26,475 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:26,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:26,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1104785409, now seen corresponding path program 1 times [2024-11-19 11:09:26,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:26,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817586189] [2024-11-19 11:09:26,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:26,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:26,635 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-19 11:09:26,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:26,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817586189] [2024-11-19 11:09:26,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817586189] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:26,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988130094] [2024-11-19 11:09:26,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:26,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:26,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:26,639 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:26,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-19 11:09:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:26,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 11:09:26,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:26,748 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-19 11:09:26,748 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-19 11:09:26,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988130094] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:26,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:26,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 17 [2024-11-19 11:09:26,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873553521] [2024-11-19 11:09:26,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:26,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 11:09:26,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:26,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 11:09:26,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-19 11:09:26,971 INFO L87 Difference]: Start difference. First operand 900 states and 1395 transitions. Second operand has 17 states, 16 states have (on average 5.0) internal successors, (80), 13 states have internal predecessors, (80), 9 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 11:09:27,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:27,210 INFO L93 Difference]: Finished difference Result 1743 states and 2758 transitions. [2024-11-19 11:09:27,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 11:09:27,210 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.0) internal successors, (80), 13 states have internal predecessors, (80), 9 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 142 [2024-11-19 11:09:27,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:27,215 INFO L225 Difference]: With dead ends: 1743 [2024-11-19 11:09:27,215 INFO L226 Difference]: Without dead ends: 921 [2024-11-19 11:09:27,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 275 SyntacticMatches, 11 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-11-19 11:09:27,219 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 152 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:27,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 375 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:09:27,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-11-19 11:09:27,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 912. [2024-11-19 11:09:27,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 724 states have (on average 1.0704419889502763) internal successors, (775), 708 states have internal predecessors, (775), 96 states have call successors, (96), 20 states have call predecessors, (96), 88 states have return successors, (539), 183 states have call predecessors, (539), 95 states have call successors, (539) [2024-11-19 11:09:27,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1410 transitions. [2024-11-19 11:09:27,261 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1410 transitions. Word has length 142 [2024-11-19 11:09:27,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:27,261 INFO L471 AbstractCegarLoop]: Abstraction has 912 states and 1410 transitions. [2024-11-19 11:09:27,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.0) internal successors, (80), 13 states have internal predecessors, (80), 9 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 11:09:27,261 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1410 transitions. [2024-11-19 11:09:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 11:09:27,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:27,262 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 7, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-19 11:09:27,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-19 11:09:27,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-19 11:09:27,464 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:27,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:27,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1348894490, now seen corresponding path program 2 times [2024-11-19 11:09:27,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:27,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491753367] [2024-11-19 11:09:27,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:27,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:27,475 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:27,475 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:27,733 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 97 proven. 207 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-19 11:09:27,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:27,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491753367] [2024-11-19 11:09:27,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491753367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:27,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210553832] [2024-11-19 11:09:27,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:27,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:27,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:27,736 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:27,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-19 11:09:27,813 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:27,813 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:27,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-19 11:09:27,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:28,195 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 65 proven. 91 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2024-11-19 11:09:28,196 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:29,610 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 91 proven. 83 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-11-19 11:09:29,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210553832] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:29,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:29,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21, 26] total 55 [2024-11-19 11:09:29,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540586309] [2024-11-19 11:09:29,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:29,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-19 11:09:29,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:29,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-19 11:09:29,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=2733, Unknown=0, NotChecked=0, Total=2970 [2024-11-19 11:09:29,613 INFO L87 Difference]: Start difference. First operand 912 states and 1410 transitions. Second operand has 55 states, 54 states have (on average 3.4444444444444446) internal successors, (186), 51 states have internal predecessors, (186), 21 states have call successors, (27), 5 states have call predecessors, (27), 14 states have return successors, (38), 33 states have call predecessors, (38), 17 states have call successors, (38) [2024-11-19 11:09:33,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:33,009 INFO L93 Difference]: Finished difference Result 2601 states and 4405 transitions. [2024-11-19 11:09:33,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2024-11-19 11:09:33,010 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 3.4444444444444446) internal successors, (186), 51 states have internal predecessors, (186), 21 states have call successors, (27), 5 states have call predecessors, (27), 14 states have return successors, (38), 33 states have call predecessors, (38), 17 states have call successors, (38) Word has length 179 [2024-11-19 11:09:33,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:33,019 INFO L225 Difference]: With dead ends: 2601 [2024-11-19 11:09:33,019 INFO L226 Difference]: Without dead ends: 1755 [2024-11-19 11:09:33,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 310 SyntacticMatches, 16 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9196 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2963, Invalid=23769, Unknown=0, NotChecked=0, Total=26732 [2024-11-19 11:09:33,029 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 494 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 3250 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 3517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 3250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:33,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 546 Invalid, 3517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 3250 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 11:09:33,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2024-11-19 11:09:33,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 925. [2024-11-19 11:09:33,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 730 states have (on average 1.0575342465753426) internal successors, (772), 721 states have internal predecessors, (772), 96 states have call successors, (96), 20 states have call predecessors, (96), 95 states have return successors, (554), 183 states have call predecessors, (554), 95 states have call successors, (554) [2024-11-19 11:09:33,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1422 transitions. [2024-11-19 11:09:33,128 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1422 transitions. Word has length 179 [2024-11-19 11:09:33,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:33,128 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1422 transitions. [2024-11-19 11:09:33,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 3.4444444444444446) internal successors, (186), 51 states have internal predecessors, (186), 21 states have call successors, (27), 5 states have call predecessors, (27), 14 states have return successors, (38), 33 states have call predecessors, (38), 17 states have call successors, (38) [2024-11-19 11:09:33,129 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1422 transitions. [2024-11-19 11:09:33,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-19 11:09:33,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:33,131 INFO L215 NwaCegarLoop]: trace histogram [15, 14, 14, 12, 12, 11, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 1, 1, 1, 1] [2024-11-19 11:09:33,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-19 11:09:33,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-19 11:09:33,335 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:33,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:33,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1759933030, now seen corresponding path program 2 times [2024-11-19 11:09:33,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:33,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115575204] [2024-11-19 11:09:33,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:33,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:33,357 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:33,357 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:33,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 164 proven. 183 refuted. 0 times theorem prover too weak. 879 trivial. 0 not checked. [2024-11-19 11:09:33,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:33,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115575204] [2024-11-19 11:09:33,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115575204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:33,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737317226] [2024-11-19 11:09:33,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:33,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:33,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:33,517 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:33,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-19 11:09:33,625 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:33,625 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:33,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 11:09:33,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:33,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 778 proven. 143 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-11-19 11:09:33,859 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:34,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 216 proven. 384 refuted. 0 times theorem prover too weak. 626 trivial. 0 not checked. [2024-11-19 11:09:34,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737317226] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:34,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:34,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16, 19] total 32 [2024-11-19 11:09:34,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703777529] [2024-11-19 11:09:34,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:34,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-19 11:09:34,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:34,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-19 11:09:34,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=889, Unknown=0, NotChecked=0, Total=992 [2024-11-19 11:09:34,870 INFO L87 Difference]: Start difference. First operand 925 states and 1422 transitions. Second operand has 32 states, 30 states have (on average 5.833333333333333) internal successors, (175), 26 states have internal predecessors, (175), 20 states have call successors, (31), 8 states have call predecessors, (31), 9 states have return successors, (27), 11 states have call predecessors, (27), 14 states have call successors, (27) [2024-11-19 11:09:35,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:35,670 INFO L93 Difference]: Finished difference Result 1859 states and 3122 transitions. [2024-11-19 11:09:35,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-19 11:09:35,671 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 5.833333333333333) internal successors, (175), 26 states have internal predecessors, (175), 20 states have call successors, (31), 8 states have call predecessors, (31), 9 states have return successors, (27), 11 states have call predecessors, (27), 14 states have call successors, (27) Word has length 272 [2024-11-19 11:09:35,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:35,680 INFO L225 Difference]: With dead ends: 1859 [2024-11-19 11:09:35,680 INFO L226 Difference]: Without dead ends: 1005 [2024-11-19 11:09:35,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 518 SyntacticMatches, 12 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=395, Invalid=2685, Unknown=0, NotChecked=0, Total=3080 [2024-11-19 11:09:35,686 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 386 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:35,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 928 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 11:09:35,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-19 11:09:35,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 891. [2024-11-19 11:09:35,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 705 states have (on average 1.04822695035461) internal successors, (739), 696 states have internal predecessors, (739), 94 states have call successors, (94), 27 states have call predecessors, (94), 88 states have return successors, (466), 167 states have call predecessors, (466), 93 states have call successors, (466) [2024-11-19 11:09:35,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1299 transitions. [2024-11-19 11:09:35,738 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1299 transitions. Word has length 272 [2024-11-19 11:09:35,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:35,738 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1299 transitions. [2024-11-19 11:09:35,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 5.833333333333333) internal successors, (175), 26 states have internal predecessors, (175), 20 states have call successors, (31), 8 states have call predecessors, (31), 9 states have return successors, (27), 11 states have call predecessors, (27), 14 states have call successors, (27) [2024-11-19 11:09:35,738 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1299 transitions. [2024-11-19 11:09:35,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-19 11:09:35,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:35,740 INFO L215 NwaCegarLoop]: trace histogram [13, 12, 12, 10, 10, 9, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 1, 1, 1, 1] [2024-11-19 11:09:35,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-19 11:09:35,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:35,945 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:35,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:35,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1808264188, now seen corresponding path program 3 times [2024-11-19 11:09:35,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:35,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233879643] [2024-11-19 11:09:35,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 11:09:35,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:35,955 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 11:09:35,955 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 152 proven. 3 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2024-11-19 11:09:35,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:35,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233879643] [2024-11-19 11:09:35,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233879643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:35,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906429077] [2024-11-19 11:09:35,985 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 11:09:35,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:35,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:35,987 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:35,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-19 11:09:36,055 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 11:09:36,056 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:36,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 11:09:36,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:36,076 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2024-11-19 11:09:36,076 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:09:36,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906429077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:36,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:09:36,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2024-11-19 11:09:36,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194077597] [2024-11-19 11:09:36,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:36,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:09:36,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:36,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:09:36,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:09:36,078 INFO L87 Difference]: Start difference. First operand 891 states and 1299 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-19 11:09:36,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:36,132 INFO L93 Difference]: Finished difference Result 1284 states and 1887 transitions. [2024-11-19 11:09:36,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:09:36,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 232 [2024-11-19 11:09:36,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:36,148 INFO L225 Difference]: With dead ends: 1284 [2024-11-19 11:09:36,149 INFO L226 Difference]: Without dead ends: 488 [2024-11-19 11:09:36,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 232 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:09:36,153 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 28 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:36,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 85 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:09:36,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-19 11:09:36,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 471. [2024-11-19 11:09:36,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 373 states have (on average 1.0375335120643432) internal successors, (387), 374 states have internal predecessors, (387), 55 states have call successors, (55), 26 states have call predecessors, (55), 41 states have return successors, (115), 70 states have call predecessors, (115), 54 states have call successors, (115) [2024-11-19 11:09:36,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 557 transitions. [2024-11-19 11:09:36,192 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 557 transitions. Word has length 232 [2024-11-19 11:09:36,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:36,193 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 557 transitions. [2024-11-19 11:09:36,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-19 11:09:36,193 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 557 transitions. [2024-11-19 11:09:36,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-19 11:09:36,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:36,196 INFO L215 NwaCegarLoop]: trace histogram [13, 12, 12, 10, 10, 10, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 1, 1, 1, 1] [2024-11-19 11:09:36,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-19 11:09:36,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:36,397 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:36,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:36,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1770838409, now seen corresponding path program 4 times [2024-11-19 11:09:36,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:36,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524963141] [2024-11-19 11:09:36,397 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 11:09:36,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:36,413 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 11:09:36,413 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:36,562 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 112 proven. 247 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2024-11-19 11:09:36,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:36,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524963141] [2024-11-19 11:09:36,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524963141] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:36,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889382880] [2024-11-19 11:09:36,563 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 11:09:36,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:36,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:36,564 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:36,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-19 11:09:36,646 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 11:09:36,646 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:36,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 11:09:36,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:36,698 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 483 proven. 126 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-19 11:09:36,698 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:37,076 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 112 proven. 248 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2024-11-19 11:09:37,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889382880] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:37,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:37,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 15] total 17 [2024-11-19 11:09:37,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363660711] [2024-11-19 11:09:37,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:37,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 11:09:37,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:37,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 11:09:37,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-19 11:09:37,078 INFO L87 Difference]: Start difference. First operand 471 states and 557 transitions. Second operand has 17 states, 16 states have (on average 7.25) internal successors, (116), 14 states have internal predecessors, (116), 10 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-19 11:09:37,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:37,343 INFO L93 Difference]: Finished difference Result 880 states and 1048 transitions. [2024-11-19 11:09:37,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 11:09:37,344 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 7.25) internal successors, (116), 14 states have internal predecessors, (116), 10 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) Word has length 233 [2024-11-19 11:09:37,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:37,347 INFO L225 Difference]: With dead ends: 880 [2024-11-19 11:09:37,347 INFO L226 Difference]: Without dead ends: 491 [2024-11-19 11:09:37,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 457 SyntacticMatches, 10 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-11-19 11:09:37,348 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 92 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:37,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 334 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:09:37,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-19 11:09:37,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 466. [2024-11-19 11:09:37,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 369 states have (on average 1.037940379403794) internal successors, (383), 370 states have internal predecessors, (383), 55 states have call successors, (55), 26 states have call predecessors, (55), 40 states have return successors, (112), 69 states have call predecessors, (112), 54 states have call successors, (112) [2024-11-19 11:09:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 550 transitions. [2024-11-19 11:09:37,373 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 550 transitions. Word has length 233 [2024-11-19 11:09:37,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:37,373 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 550 transitions. [2024-11-19 11:09:37,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 7.25) internal successors, (116), 14 states have internal predecessors, (116), 10 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (18), 8 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-19 11:09:37,374 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 550 transitions. [2024-11-19 11:09:37,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-19 11:09:37,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:37,376 INFO L215 NwaCegarLoop]: trace histogram [13, 12, 12, 11, 10, 10, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1] [2024-11-19 11:09:37,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-19 11:09:37,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:37,577 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:37,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:37,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2069007226, now seen corresponding path program 5 times [2024-11-19 11:09:37,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:37,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364945939] [2024-11-19 11:09:37,578 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 11:09:37,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:37,602 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-19 11:09:37,606 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:37,823 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 224 proven. 240 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2024-11-19 11:09:37,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:37,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364945939] [2024-11-19 11:09:37,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364945939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:37,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667088603] [2024-11-19 11:09:37,824 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 11:09:37,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:37,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:37,826 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:37,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-19 11:09:37,929 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-19 11:09:37,929 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:37,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 11:09:37,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:38,006 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 218 proven. 244 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2024-11-19 11:09:38,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 222 proven. 248 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2024-11-19 11:09:38,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667088603] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:38,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:38,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 17] total 22 [2024-11-19 11:09:38,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781744913] [2024-11-19 11:09:38,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:38,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-19 11:09:38,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:38,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-19 11:09:38,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2024-11-19 11:09:38,673 INFO L87 Difference]: Start difference. First operand 466 states and 550 transitions. Second operand has 22 states, 22 states have (on average 6.0) internal successors, (132), 22 states have internal predecessors, (132), 15 states have call successors, (21), 1 states have call predecessors, (21), 8 states have return successors, (22), 10 states have call predecessors, (22), 15 states have call successors, (22) [2024-11-19 11:09:39,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:39,040 INFO L93 Difference]: Finished difference Result 961 states and 1174 transitions. [2024-11-19 11:09:39,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 11:09:39,040 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.0) internal successors, (132), 22 states have internal predecessors, (132), 15 states have call successors, (21), 1 states have call predecessors, (21), 8 states have return successors, (22), 10 states have call predecessors, (22), 15 states have call successors, (22) Word has length 234 [2024-11-19 11:09:39,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:39,044 INFO L225 Difference]: With dead ends: 961 [2024-11-19 11:09:39,044 INFO L226 Difference]: Without dead ends: 573 [2024-11-19 11:09:39,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 459 SyntacticMatches, 8 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=929, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 11:09:39,045 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 210 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:39,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 349 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:09:39,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-11-19 11:09:39,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 514. [2024-11-19 11:09:39,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 407 states have (on average 1.0368550368550369) internal successors, (422), 407 states have internal predecessors, (422), 61 states have call successors, (61), 29 states have call predecessors, (61), 44 states have return successors, (138), 77 states have call predecessors, (138), 60 states have call successors, (138) [2024-11-19 11:09:39,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 621 transitions. [2024-11-19 11:09:39,072 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 621 transitions. Word has length 234 [2024-11-19 11:09:39,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:39,072 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 621 transitions. [2024-11-19 11:09:39,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.0) internal successors, (132), 22 states have internal predecessors, (132), 15 states have call successors, (21), 1 states have call predecessors, (21), 8 states have return successors, (22), 10 states have call predecessors, (22), 15 states have call successors, (22) [2024-11-19 11:09:39,072 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 621 transitions. [2024-11-19 11:09:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-19 11:09:39,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:39,073 INFO L215 NwaCegarLoop]: trace histogram [14, 13, 12, 12, 11, 10, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 1, 1, 1, 1] [2024-11-19 11:09:39,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-19 11:09:39,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:39,278 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:39,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:39,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1292547001, now seen corresponding path program 6 times [2024-11-19 11:09:39,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:39,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189335369] [2024-11-19 11:09:39,279 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 11:09:39,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:39,311 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-19 11:09:39,311 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 214 proven. 25 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2024-11-19 11:09:39,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:39,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189335369] [2024-11-19 11:09:39,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189335369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:39,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161240039] [2024-11-19 11:09:39,401 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 11:09:39,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:39,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:39,403 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:39,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-19 11:09:39,512 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-19 11:09:39,512 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:39,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 11:09:39,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:39,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 435 proven. 6 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2024-11-19 11:09:39,587 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:39,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 250 proven. 32 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2024-11-19 11:09:39,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161240039] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:39,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:39,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-19 11:09:39,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581225799] [2024-11-19 11:09:39,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:39,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 11:09:39,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:39,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 11:09:39,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-19 11:09:39,962 INFO L87 Difference]: Start difference. First operand 514 states and 621 transitions. Second operand has 15 states, 15 states have (on average 6.266666666666667) internal successors, (94), 15 states have internal predecessors, (94), 7 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (17), 5 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-19 11:09:40,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:40,115 INFO L93 Difference]: Finished difference Result 915 states and 1121 transitions. [2024-11-19 11:09:40,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 11:09:40,116 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.266666666666667) internal successors, (94), 15 states have internal predecessors, (94), 7 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (17), 5 states have call predecessors, (17), 7 states have call successors, (17) Word has length 252 [2024-11-19 11:09:40,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:40,119 INFO L225 Difference]: With dead ends: 915 [2024-11-19 11:09:40,119 INFO L226 Difference]: Without dead ends: 498 [2024-11-19 11:09:40,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 496 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2024-11-19 11:09:40,120 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 55 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:40,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 195 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:09:40,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-19 11:09:40,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 496. [2024-11-19 11:09:40,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 393 states have (on average 1.0356234096692112) internal successors, (407), 393 states have internal predecessors, (407), 59 states have call successors, (59), 29 states have call predecessors, (59), 42 states have return successors, (127), 73 states have call predecessors, (127), 58 states have call successors, (127) [2024-11-19 11:09:40,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 593 transitions. [2024-11-19 11:09:40,180 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 593 transitions. Word has length 252 [2024-11-19 11:09:40,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:40,180 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 593 transitions. [2024-11-19 11:09:40,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.266666666666667) internal successors, (94), 15 states have internal predecessors, (94), 7 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (17), 5 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-19 11:09:40,184 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 593 transitions. [2024-11-19 11:09:40,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-19 11:09:40,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:40,186 INFO L215 NwaCegarLoop]: trace histogram [14, 13, 12, 12, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 2, 1, 1, 1, 1] [2024-11-19 11:09:40,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-19 11:09:40,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:40,390 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:40,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:40,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1942864476, now seen corresponding path program 7 times [2024-11-19 11:09:40,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:40,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561856561] [2024-11-19 11:09:40,390 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 11:09:40,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:41,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 149 proven. 248 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2024-11-19 11:09:41,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:41,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561856561] [2024-11-19 11:09:41,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561856561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:41,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569590045] [2024-11-19 11:09:41,115 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 11:09:41,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:41,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:41,117 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:41,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-19 11:09:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:41,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-19 11:09:41,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 148 proven. 181 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2024-11-19 11:09:41,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:43,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 218 proven. 160 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2024-11-19 11:09:43,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569590045] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:43,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:43,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 24, 29] total 56 [2024-11-19 11:09:43,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878656390] [2024-11-19 11:09:43,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:43,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-19 11:09:43,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:43,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-19 11:09:43,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=2797, Unknown=0, NotChecked=0, Total=3192 [2024-11-19 11:09:43,862 INFO L87 Difference]: Start difference. First operand 496 states and 593 transitions. Second operand has 57 states, 56 states have (on average 2.6785714285714284) internal successors, (150), 57 states have internal predecessors, (150), 14 states have call successors, (16), 1 states have call predecessors, (16), 18 states have return successors, (37), 37 states have call predecessors, (37), 14 states have call successors, (37) [2024-11-19 11:09:44,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:44,201 INFO L93 Difference]: Finished difference Result 613 states and 735 transitions. [2024-11-19 11:09:44,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-19 11:09:44,201 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 2.6785714285714284) internal successors, (150), 57 states have internal predecessors, (150), 14 states have call successors, (16), 1 states have call predecessors, (16), 18 states have return successors, (37), 37 states have call predecessors, (37), 14 states have call successors, (37) Word has length 253 [2024-11-19 11:09:44,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:44,204 INFO L225 Difference]: With dead ends: 613 [2024-11-19 11:09:44,204 INFO L226 Difference]: Without dead ends: 611 [2024-11-19 11:09:44,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 471 SyntacticMatches, 27 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3221 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=583, Invalid=3973, Unknown=0, NotChecked=0, Total=4556 [2024-11-19 11:09:44,205 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 28 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:44,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 711 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:09:44,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-19 11:09:44,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 502. [2024-11-19 11:09:44,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 397 states have (on average 1.0251889168765742) internal successors, (407), 398 states have internal predecessors, (407), 60 states have call successors, (60), 29 states have call predecessors, (60), 43 states have return successors, (130), 74 states have call predecessors, (130), 59 states have call successors, (130) [2024-11-19 11:09:44,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 597 transitions. [2024-11-19 11:09:44,231 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 597 transitions. Word has length 253 [2024-11-19 11:09:44,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:44,232 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 597 transitions. [2024-11-19 11:09:44,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 2.6785714285714284) internal successors, (150), 57 states have internal predecessors, (150), 14 states have call successors, (16), 1 states have call predecessors, (16), 18 states have return successors, (37), 37 states have call predecessors, (37), 14 states have call successors, (37) [2024-11-19 11:09:44,232 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 597 transitions. [2024-11-19 11:09:44,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-19 11:09:44,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:44,234 INFO L215 NwaCegarLoop]: trace histogram [21, 20, 17, 16, 16, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 5, 5, 2, 1, 1, 1, 1] [2024-11-19 11:09:44,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-19 11:09:44,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-19 11:09:44,438 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:44,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:44,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1965406224, now seen corresponding path program 3 times [2024-11-19 11:09:44,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:44,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965172661] [2024-11-19 11:09:44,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 11:09:44,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:44,451 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-19 11:09:44,451 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:44,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 491 proven. 52 refuted. 0 times theorem prover too weak. 1748 trivial. 0 not checked. [2024-11-19 11:09:44,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:44,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965172661] [2024-11-19 11:09:44,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965172661] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:44,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640247052] [2024-11-19 11:09:44,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 11:09:44,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:44,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:44,537 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:44,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-19 11:09:44,649 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-19 11:09:44,650 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:44,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 11:09:44,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:44,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 739 proven. 7 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2024-11-19 11:09:44,711 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:45,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 429 proven. 34 refuted. 0 times theorem prover too weak. 1828 trivial. 0 not checked. [2024-11-19 11:09:45,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640247052] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:45,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:45,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 17 [2024-11-19 11:09:45,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093338265] [2024-11-19 11:09:45,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:45,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 11:09:45,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:45,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 11:09:45,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-19 11:09:45,271 INFO L87 Difference]: Start difference. First operand 502 states and 597 transitions. Second operand has 17 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 8 states have call successors, (17), 2 states have call predecessors, (17), 6 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-19 11:09:45,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:45,452 INFO L93 Difference]: Finished difference Result 849 states and 1022 transitions. [2024-11-19 11:09:45,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 11:09:45,453 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 8 states have call successors, (17), 2 states have call predecessors, (17), 6 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) Word has length 365 [2024-11-19 11:09:45,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:45,457 INFO L225 Difference]: With dead ends: 849 [2024-11-19 11:09:45,457 INFO L226 Difference]: Without dead ends: 490 [2024-11-19 11:09:45,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 745 GetRequests, 722 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2024-11-19 11:09:45,459 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 63 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:45,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 226 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:09:45,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-19 11:09:45,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 484. [2024-11-19 11:09:45,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 383 states have (on average 1.0261096605744124) internal successors, (393), 384 states have internal predecessors, (393), 58 states have call successors, (58), 29 states have call predecessors, (58), 41 states have return successors, (112), 70 states have call predecessors, (112), 57 states have call successors, (112) [2024-11-19 11:09:45,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 563 transitions. [2024-11-19 11:09:45,495 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 563 transitions. Word has length 365 [2024-11-19 11:09:45,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:45,495 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 563 transitions. [2024-11-19 11:09:45,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 8 states have call successors, (17), 2 states have call predecessors, (17), 6 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-19 11:09:45,495 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 563 transitions. [2024-11-19 11:09:45,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-19 11:09:45,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:45,497 INFO L215 NwaCegarLoop]: trace histogram [19, 18, 17, 16, 16, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 5, 3, 3, 1, 1, 1, 1] [2024-11-19 11:09:45,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-19 11:09:45,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-19 11:09:45,703 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:45,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:45,703 INFO L85 PathProgramCache]: Analyzing trace with hash 2028835144, now seen corresponding path program 4 times [2024-11-19 11:09:45,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:45,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008285032] [2024-11-19 11:09:45,703 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 11:09:45,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:45,724 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 11:09:45,725 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:45,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 333 proven. 188 refuted. 0 times theorem prover too weak. 1514 trivial. 0 not checked. [2024-11-19 11:09:45,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:45,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008285032] [2024-11-19 11:09:45,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008285032] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:45,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659564245] [2024-11-19 11:09:45,829 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 11:09:45,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:45,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:45,831 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:45,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-19 11:09:45,959 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 11:09:45,959 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:45,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 11:09:45,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 426 proven. 203 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2024-11-19 11:09:46,040 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:46,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 426 proven. 210 refuted. 0 times theorem prover too weak. 1399 trivial. 0 not checked. [2024-11-19 11:09:46,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659564245] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:46,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:46,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 15] total 18 [2024-11-19 11:09:46,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083985878] [2024-11-19 11:09:46,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:46,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 11:09:46,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:46,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 11:09:46,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-11-19 11:09:46,644 INFO L87 Difference]: Start difference. First operand 484 states and 563 transitions. Second operand has 18 states, 17 states have (on average 6.0) internal successors, (102), 16 states have internal predecessors, (102), 12 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (17), 7 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-19 11:09:46,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:46,858 INFO L93 Difference]: Finished difference Result 835 states and 974 transitions. [2024-11-19 11:09:46,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 11:09:46,858 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.0) internal successors, (102), 16 states have internal predecessors, (102), 12 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (17), 7 states have call predecessors, (17), 10 states have call successors, (17) Word has length 346 [2024-11-19 11:09:46,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:46,861 INFO L225 Difference]: With dead ends: 835 [2024-11-19 11:09:46,861 INFO L226 Difference]: Without dead ends: 473 [2024-11-19 11:09:46,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 680 SyntacticMatches, 9 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-11-19 11:09:46,862 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 77 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:46,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 284 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:09:46,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-19 11:09:46,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 463. [2024-11-19 11:09:46,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 366 states have (on average 1.0273224043715847) internal successors, (376), 368 states have internal predecessors, (376), 56 states have call successors, (56), 29 states have call predecessors, (56), 39 states have return successors, (100), 65 states have call predecessors, (100), 55 states have call successors, (100) [2024-11-19 11:09:46,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 532 transitions. [2024-11-19 11:09:46,910 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 532 transitions. Word has length 346 [2024-11-19 11:09:46,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:46,910 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 532 transitions. [2024-11-19 11:09:46,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.0) internal successors, (102), 16 states have internal predecessors, (102), 12 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (17), 7 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-19 11:09:46,910 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 532 transitions. [2024-11-19 11:09:46,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-19 11:09:46,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:46,912 INFO L215 NwaCegarLoop]: trace histogram [21, 20, 19, 18, 17, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 6, 5, 2, 1, 1, 1, 1] [2024-11-19 11:09:46,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-19 11:09:47,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-19 11:09:47,113 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:47,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:47,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1837041369, now seen corresponding path program 5 times [2024-11-19 11:09:47,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:47,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866506981] [2024-11-19 11:09:47,113 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 11:09:47,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:47,137 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 11:09:47,137 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:47,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2541 backedges. 530 proven. 574 refuted. 0 times theorem prover too weak. 1437 trivial. 0 not checked. [2024-11-19 11:09:47,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:47,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866506981] [2024-11-19 11:09:47,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866506981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:47,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50588382] [2024-11-19 11:09:47,683 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 11:09:47,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:47,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:47,684 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:47,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-19 11:09:47,856 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 11:09:47,856 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:47,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 11:09:47,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:47,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2541 backedges. 503 proven. 604 refuted. 0 times theorem prover too weak. 1434 trivial. 0 not checked. [2024-11-19 11:09:47,989 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:49,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2541 backedges. 507 proven. 620 refuted. 0 times theorem prover too weak. 1414 trivial. 0 not checked. [2024-11-19 11:09:49,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50588382] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:49,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:49,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 21] total 29 [2024-11-19 11:09:49,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475391307] [2024-11-19 11:09:49,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:49,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-19 11:09:49,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:49,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-19 11:09:49,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=701, Unknown=0, NotChecked=0, Total=812 [2024-11-19 11:09:49,828 INFO L87 Difference]: Start difference. First operand 463 states and 532 transitions. Second operand has 29 states, 29 states have (on average 6.068965517241379) internal successors, (176), 29 states have internal predecessors, (176), 19 states have call successors, (30), 1 states have call predecessors, (30), 12 states have return successors, (35), 19 states have call predecessors, (35), 19 states have call successors, (35) [2024-11-19 11:09:50,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:50,490 INFO L93 Difference]: Finished difference Result 1013 states and 1233 transitions. [2024-11-19 11:09:50,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-19 11:09:50,491 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.068965517241379) internal successors, (176), 29 states have internal predecessors, (176), 19 states have call successors, (30), 1 states have call predecessors, (30), 12 states have return successors, (35), 19 states have call predecessors, (35), 19 states have call successors, (35) Word has length 385 [2024-11-19 11:09:50,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:50,494 INFO L225 Difference]: With dead ends: 1013 [2024-11-19 11:09:50,494 INFO L226 Difference]: Without dead ends: 621 [2024-11-19 11:09:50,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 755 SyntacticMatches, 10 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=398, Invalid=2052, Unknown=0, NotChecked=0, Total=2450 [2024-11-19 11:09:50,496 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 242 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:50,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 578 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 11:09:50,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-11-19 11:09:50,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 532. [2024-11-19 11:09:50,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 423 states have (on average 1.0307328605200945) internal successors, (436), 422 states have internal predecessors, (436), 67 states have call successors, (67), 39 states have call predecessors, (67), 40 states have return successors, (108), 70 states have call predecessors, (108), 66 states have call successors, (108) [2024-11-19 11:09:50,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 611 transitions. [2024-11-19 11:09:50,528 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 611 transitions. Word has length 385 [2024-11-19 11:09:50,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:50,529 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 611 transitions. [2024-11-19 11:09:50,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.068965517241379) internal successors, (176), 29 states have internal predecessors, (176), 19 states have call successors, (30), 1 states have call predecessors, (30), 12 states have return successors, (35), 19 states have call predecessors, (35), 19 states have call successors, (35) [2024-11-19 11:09:50,529 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 611 transitions. [2024-11-19 11:09:50,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-19 11:09:50,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:50,531 INFO L215 NwaCegarLoop]: trace histogram [21, 20, 19, 18, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 1, 1, 1, 1] [2024-11-19 11:09:50,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-19 11:09:50,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:50,731 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:50,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:50,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1640309168, now seen corresponding path program 6 times [2024-11-19 11:09:50,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:50,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966396022] [2024-11-19 11:09:50,732 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 11:09:50,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:50,757 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-11-19 11:09:50,757 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:50,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2525 backedges. 580 proven. 35 refuted. 0 times theorem prover too weak. 1910 trivial. 0 not checked. [2024-11-19 11:09:50,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:50,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966396022] [2024-11-19 11:09:50,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966396022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:50,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699082171] [2024-11-19 11:09:50,909 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 11:09:50,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:50,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:50,910 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:50,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-19 11:09:51,056 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-11-19 11:09:51,056 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:51,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 11:09:51,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:51,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2525 backedges. 632 proven. 41 refuted. 0 times theorem prover too weak. 1852 trivial. 0 not checked. [2024-11-19 11:09:51,127 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:51,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2525 backedges. 632 proven. 42 refuted. 0 times theorem prover too weak. 1851 trivial. 0 not checked. [2024-11-19 11:09:51,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699082171] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:51,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:51,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 20 [2024-11-19 11:09:51,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871204684] [2024-11-19 11:09:51,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:51,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-19 11:09:51,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:51,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 11:09:51,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-11-19 11:09:51,754 INFO L87 Difference]: Start difference. First operand 532 states and 611 transitions. Second operand has 20 states, 20 states have (on average 5.75) internal successors, (115), 20 states have internal predecessors, (115), 10 states have call successors, (19), 1 states have call predecessors, (19), 7 states have return successors, (20), 11 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-19 11:09:52,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:52,007 INFO L93 Difference]: Finished difference Result 901 states and 1037 transitions. [2024-11-19 11:09:52,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 11:09:52,007 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.75) internal successors, (115), 20 states have internal predecessors, (115), 10 states have call successors, (19), 1 states have call predecessors, (19), 7 states have return successors, (20), 11 states have call predecessors, (20), 10 states have call successors, (20) Word has length 384 [2024-11-19 11:09:52,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:52,010 INFO L225 Difference]: With dead ends: 901 [2024-11-19 11:09:52,010 INFO L226 Difference]: Without dead ends: 510 [2024-11-19 11:09:52,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 790 GetRequests, 757 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2024-11-19 11:09:52,011 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 47 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:52,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 349 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:09:52,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-19 11:09:52,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 498. [2024-11-19 11:09:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 396 states have (on average 1.0277777777777777) internal successors, (407), 395 states have internal predecessors, (407), 62 states have call successors, (62), 38 states have call predecessors, (62), 38 states have return successors, (90), 64 states have call predecessors, (90), 61 states have call successors, (90) [2024-11-19 11:09:52,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 559 transitions. [2024-11-19 11:09:52,035 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 559 transitions. Word has length 384 [2024-11-19 11:09:52,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:52,036 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 559 transitions. [2024-11-19 11:09:52,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.75) internal successors, (115), 20 states have internal predecessors, (115), 10 states have call successors, (19), 1 states have call predecessors, (19), 7 states have return successors, (20), 11 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-19 11:09:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 559 transitions. [2024-11-19 11:09:52,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-11-19 11:09:52,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:52,038 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 21, 20, 18, 17, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 5, 5, 4, 1, 1, 1, 1] [2024-11-19 11:09:52,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-19 11:09:52,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-19 11:09:52,242 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:52,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:52,242 INFO L85 PathProgramCache]: Analyzing trace with hash -333932451, now seen corresponding path program 7 times [2024-11-19 11:09:52,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:52,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868223655] [2024-11-19 11:09:52,242 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 11:09:52,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:52,576 INFO L134 CoverageAnalysis]: Checked inductivity of 3090 backedges. 658 proven. 350 refuted. 0 times theorem prover too weak. 2082 trivial. 0 not checked. [2024-11-19 11:09:52,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:52,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868223655] [2024-11-19 11:09:52,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868223655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:52,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24654131] [2024-11-19 11:09:52,577 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 11:09:52,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:52,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:52,579 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:52,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-19 11:09:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:52,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 11:09:52,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:52,882 INFO L134 CoverageAnalysis]: Checked inductivity of 3090 backedges. 706 proven. 361 refuted. 0 times theorem prover too weak. 2023 trivial. 0 not checked. [2024-11-19 11:09:52,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:54,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3090 backedges. 706 proven. 383 refuted. 0 times theorem prover too weak. 2001 trivial. 0 not checked. [2024-11-19 11:09:54,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24654131] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:54,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:54,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 19] total 24 [2024-11-19 11:09:54,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370992929] [2024-11-19 11:09:54,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:54,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 11:09:54,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:54,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 11:09:54,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-19 11:09:54,291 INFO L87 Difference]: Start difference. First operand 498 states and 559 transitions. Second operand has 24 states, 23 states have (on average 5.608695652173913) internal successors, (129), 22 states have internal predecessors, (129), 17 states have call successors, (22), 3 states have call predecessors, (22), 7 states have return successors, (23), 9 states have call predecessors, (23), 15 states have call successors, (23) [2024-11-19 11:09:54,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:54,504 INFO L93 Difference]: Finished difference Result 883 states and 992 transitions. [2024-11-19 11:09:54,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 11:09:54,507 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.608695652173913) internal successors, (129), 22 states have internal predecessors, (129), 17 states have call successors, (22), 3 states have call predecessors, (22), 7 states have return successors, (23), 9 states have call predecessors, (23), 15 states have call successors, (23) Word has length 423 [2024-11-19 11:09:54,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:54,509 INFO L225 Difference]: With dead ends: 883 [2024-11-19 11:09:54,509 INFO L226 Difference]: Without dead ends: 531 [2024-11-19 11:09:54,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 875 GetRequests, 832 SyntacticMatches, 11 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=204, Invalid=918, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 11:09:54,511 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 108 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:54,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 333 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:09:54,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-19 11:09:54,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 498. [2024-11-19 11:09:54,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 396 states have (on average 1.0277777777777777) internal successors, (407), 395 states have internal predecessors, (407), 62 states have call successors, (62), 38 states have call predecessors, (62), 38 states have return successors, (89), 64 states have call predecessors, (89), 61 states have call successors, (89) [2024-11-19 11:09:54,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 558 transitions. [2024-11-19 11:09:54,538 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 558 transitions. Word has length 423 [2024-11-19 11:09:54,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:54,539 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 558 transitions. [2024-11-19 11:09:54,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.608695652173913) internal successors, (129), 22 states have internal predecessors, (129), 17 states have call successors, (22), 3 states have call predecessors, (22), 7 states have return successors, (23), 9 states have call predecessors, (23), 15 states have call successors, (23) [2024-11-19 11:09:54,539 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 558 transitions. [2024-11-19 11:09:54,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-19 11:09:54,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:54,541 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 17, 17, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 7, 6, 4, 4, 1, 1, 1, 1] [2024-11-19 11:09:54,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-19 11:09:54,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-19 11:09:54,745 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:09:54,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:54,745 INFO L85 PathProgramCache]: Analyzing trace with hash 322047479, now seen corresponding path program 8 times [2024-11-19 11:09:54,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:54,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857105031] [2024-11-19 11:09:54,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:54,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:54,775 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:54,775 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:56,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 440 proven. 701 refuted. 0 times theorem prover too weak. 1661 trivial. 0 not checked. [2024-11-19 11:09:56,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:56,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857105031] [2024-11-19 11:09:56,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857105031] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:56,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318507837] [2024-11-19 11:09:56,471 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:09:56,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:56,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:56,474 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:09:56,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-19 11:09:56,659 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:09:56,659 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:56,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-11-19 11:09:56,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:57,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 432 proven. 525 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked. [2024-11-19 11:09:57,065 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:02,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 585 proven. 468 refuted. 0 times theorem prover too weak. 1749 trivial. 0 not checked. [2024-11-19 11:10:02,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318507837] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:02,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:02,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 30, 37] total 68 [2024-11-19 11:10:02,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137254643] [2024-11-19 11:10:02,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:02,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-11-19 11:10:02,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:02,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-11-19 11:10:02,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=559, Invalid=4133, Unknown=0, NotChecked=0, Total=4692 [2024-11-19 11:10:02,978 INFO L87 Difference]: Start difference. First operand 498 states and 558 transitions. Second operand has 69 states, 68 states have (on average 2.6470588235294117) internal successors, (180), 69 states have internal predecessors, (180), 17 states have call successors, (19), 1 states have call predecessors, (19), 21 states have return successors, (46), 46 states have call predecessors, (46), 17 states have call successors, (46) [2024-11-19 11:10:03,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:03,310 INFO L93 Difference]: Finished difference Result 572 states and 642 transitions. [2024-11-19 11:10:03,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-19 11:10:03,311 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 68 states have (on average 2.6470588235294117) internal successors, (180), 69 states have internal predecessors, (180), 17 states have call successors, (19), 1 states have call predecessors, (19), 21 states have return successors, (46), 46 states have call predecessors, (46), 17 states have call successors, (46) Word has length 404 [2024-11-19 11:10:03,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:03,313 INFO L225 Difference]: With dead ends: 572 [2024-11-19 11:10:03,313 INFO L226 Difference]: Without dead ends: 559 [2024-11-19 11:10:03,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 898 GetRequests, 769 SyntacticMatches, 51 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5840 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=783, Invalid=5537, Unknown=0, NotChecked=0, Total=6320 [2024-11-19 11:10:03,315 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 42 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:03,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 483 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:10:03,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-11-19 11:10:03,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 502. [2024-11-19 11:10:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 400 states have (on average 1.025) internal successors, (410), 398 states have internal predecessors, (410), 62 states have call successors, (62), 38 states have call predecessors, (62), 39 states have return successors, (88), 65 states have call predecessors, (88), 61 states have call successors, (88) [2024-11-19 11:10:03,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 560 transitions. [2024-11-19 11:10:03,339 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 560 transitions. Word has length 404 [2024-11-19 11:10:03,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:03,339 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 560 transitions. [2024-11-19 11:10:03,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 68 states have (on average 2.6470588235294117) internal successors, (180), 69 states have internal predecessors, (180), 17 states have call successors, (19), 1 states have call predecessors, (19), 21 states have return successors, (46), 46 states have call predecessors, (46), 17 states have call successors, (46) [2024-11-19 11:10:03,340 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 560 transitions. [2024-11-19 11:10:03,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2024-11-19 11:10:03,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:03,343 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 29, 28, 28, 24, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 6, 5, 1, 1, 1, 1] [2024-11-19 11:10:03,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-19 11:10:03,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:03,548 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:10:03,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:03,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2011902278, now seen corresponding path program 8 times [2024-11-19 11:10:03,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:03,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489798080] [2024-11-19 11:10:03,549 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:10:03,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:03,584 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:10:03,584 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:03,794 INFO L134 CoverageAnalysis]: Checked inductivity of 7182 backedges. 699 proven. 201 refuted. 0 times theorem prover too weak. 6282 trivial. 0 not checked. [2024-11-19 11:10:03,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:03,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489798080] [2024-11-19 11:10:03,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489798080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:03,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307490551] [2024-11-19 11:10:03,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:10:03,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:03,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:03,796 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:10:03,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-19 11:10:04,106 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:10:04,107 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:04,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 11:10:04,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:04,200 INFO L134 CoverageAnalysis]: Checked inductivity of 7182 backedges. 942 proven. 439 refuted. 0 times theorem prover too weak. 5801 trivial. 0 not checked. [2024-11-19 11:10:04,200 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:05,277 INFO L134 CoverageAnalysis]: Checked inductivity of 7182 backedges. 942 proven. 453 refuted. 0 times theorem prover too weak. 5787 trivial. 0 not checked. [2024-11-19 11:10:05,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307490551] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:05,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:05,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 15] total 18 [2024-11-19 11:10:05,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813002863] [2024-11-19 11:10:05,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:05,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 11:10:05,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:05,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 11:10:05,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-19 11:10:05,279 INFO L87 Difference]: Start difference. First operand 502 states and 560 transitions. Second operand has 18 states, 17 states have (on average 6.705882352941177) internal successors, (114), 17 states have internal predecessors, (114), 13 states have call successors, (19), 2 states have call predecessors, (19), 7 states have return successors, (22), 10 states have call predecessors, (22), 12 states have call successors, (22) [2024-11-19 11:10:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:05,472 INFO L93 Difference]: Finished difference Result 538 states and 601 transitions. [2024-11-19 11:10:05,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 11:10:05,472 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.705882352941177) internal successors, (114), 17 states have internal predecessors, (114), 13 states have call successors, (19), 2 states have call predecessors, (19), 7 states have return successors, (22), 10 states have call predecessors, (22), 12 states have call successors, (22) Word has length 633 [2024-11-19 11:10:05,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:05,474 INFO L225 Difference]: With dead ends: 538 [2024-11-19 11:10:05,475 INFO L226 Difference]: Without dead ends: 420 [2024-11-19 11:10:05,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1282 GetRequests, 1252 SyntacticMatches, 8 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2024-11-19 11:10:05,475 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 63 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:05,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 203 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:10:05,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-19 11:10:05,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 411. [2024-11-19 11:10:05,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 329 states have (on average 1.0151975683890577) internal successors, (334), 326 states have internal predecessors, (334), 51 states have call successors, (51), 34 states have call predecessors, (51), 30 states have return successors, (65), 50 states have call predecessors, (65), 50 states have call successors, (65) [2024-11-19 11:10:05,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 450 transitions. [2024-11-19 11:10:05,495 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 450 transitions. Word has length 633 [2024-11-19 11:10:05,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:05,495 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 450 transitions. [2024-11-19 11:10:05,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.705882352941177) internal successors, (114), 17 states have internal predecessors, (114), 13 states have call successors, (19), 2 states have call predecessors, (19), 7 states have return successors, (22), 10 states have call predecessors, (22), 12 states have call successors, (22) [2024-11-19 11:10:05,495 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 450 transitions. [2024-11-19 11:10:05,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2024-11-19 11:10:05,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:05,499 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 33, 32, 29, 27, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 13, 9, 7, 6, 1, 1, 1, 1] [2024-11-19 11:10:05,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-19 11:10:05,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:05,700 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:10:05,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:05,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1459469222, now seen corresponding path program 9 times [2024-11-19 11:10:05,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:05,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127145069] [2024-11-19 11:10:05,701 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 11:10:05,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:05,733 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-19 11:10:05,733 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:05,835 INFO L134 CoverageAnalysis]: Checked inductivity of 8055 backedges. 989 proven. 156 refuted. 0 times theorem prover too weak. 6910 trivial. 0 not checked. [2024-11-19 11:10:05,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:05,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127145069] [2024-11-19 11:10:05,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127145069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:05,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724630769] [2024-11-19 11:10:05,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 11:10:05,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:05,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:05,841 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:10:05,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-19 11:10:06,065 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-19 11:10:06,065 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:06,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 11:10:06,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:06,144 INFO L134 CoverageAnalysis]: Checked inductivity of 8055 backedges. 2851 proven. 23 refuted. 0 times theorem prover too weak. 5181 trivial. 0 not checked. [2024-11-19 11:10:06,145 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:07,076 INFO L134 CoverageAnalysis]: Checked inductivity of 8055 backedges. 1097 proven. 174 refuted. 0 times theorem prover too weak. 6784 trivial. 0 not checked. [2024-11-19 11:10:07,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724630769] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:07,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:07,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 19 [2024-11-19 11:10:07,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184467958] [2024-11-19 11:10:07,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:07,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 11:10:07,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:07,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 11:10:07,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-19 11:10:07,079 INFO L87 Difference]: Start difference. First operand 411 states and 450 transitions. Second operand has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 19 states have internal predecessors, (120), 9 states have call successors, (20), 2 states have call predecessors, (20), 6 states have return successors, (22), 8 states have call predecessors, (22), 9 states have call successors, (22) [2024-11-19 11:10:07,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:07,327 INFO L93 Difference]: Finished difference Result 678 states and 747 transitions. [2024-11-19 11:10:07,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 11:10:07,327 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 19 states have internal predecessors, (120), 9 states have call successors, (20), 2 states have call predecessors, (20), 6 states have return successors, (22), 8 states have call predecessors, (22), 9 states have call successors, (22) Word has length 673 [2024-11-19 11:10:07,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:07,330 INFO L225 Difference]: With dead ends: 678 [2024-11-19 11:10:07,330 INFO L226 Difference]: Without dead ends: 417 [2024-11-19 11:10:07,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1365 GetRequests, 1334 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2024-11-19 11:10:07,331 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 130 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:07,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 229 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:10:07,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-19 11:10:07,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 413. [2024-11-19 11:10:07,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 331 states have (on average 1.0181268882175227) internal successors, (337), 327 states have internal predecessors, (337), 51 states have call successors, (51), 35 states have call predecessors, (51), 30 states have return successors, (64), 50 states have call predecessors, (64), 50 states have call successors, (64) [2024-11-19 11:10:07,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 452 transitions. [2024-11-19 11:10:07,380 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 452 transitions. Word has length 673 [2024-11-19 11:10:07,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:07,380 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 452 transitions. [2024-11-19 11:10:07,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 19 states have internal predecessors, (120), 9 states have call successors, (20), 2 states have call predecessors, (20), 6 states have return successors, (22), 8 states have call predecessors, (22), 9 states have call successors, (22) [2024-11-19 11:10:07,380 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 452 transitions. [2024-11-19 11:10:07,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2024-11-19 11:10:07,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:07,383 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 33, 32, 30, 27, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 9, 6, 6, 1, 1, 1, 1] [2024-11-19 11:10:07,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-19 11:10:07,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-19 11:10:07,588 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:10:07,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:07,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1801395121, now seen corresponding path program 10 times [2024-11-19 11:10:07,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:07,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396811191] [2024-11-19 11:10:07,588 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 11:10:07,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:07,613 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 11:10:07,614 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:07,798 INFO L134 CoverageAnalysis]: Checked inductivity of 8084 backedges. 990 proven. 361 refuted. 0 times theorem prover too weak. 6733 trivial. 0 not checked. [2024-11-19 11:10:07,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:07,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396811191] [2024-11-19 11:10:07,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396811191] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:07,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032173434] [2024-11-19 11:10:07,799 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 11:10:07,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:07,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:07,800 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:10:07,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-19 11:10:08,057 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 11:10:08,057 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:08,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 11:10:08,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:08,158 INFO L134 CoverageAnalysis]: Checked inductivity of 8084 backedges. 1010 proven. 460 refuted. 0 times theorem prover too weak. 6614 trivial. 0 not checked. [2024-11-19 11:10:08,158 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:09,272 INFO L134 CoverageAnalysis]: Checked inductivity of 8084 backedges. 1018 proven. 464 refuted. 0 times theorem prover too weak. 6602 trivial. 0 not checked. [2024-11-19 11:10:09,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032173434] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:09,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:09,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 15] total 22 [2024-11-19 11:10:09,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133887513] [2024-11-19 11:10:09,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:09,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-19 11:10:09,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:09,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-19 11:10:09,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2024-11-19 11:10:09,275 INFO L87 Difference]: Start difference. First operand 413 states and 452 transitions. Second operand has 22 states, 21 states have (on average 6.0) internal successors, (126), 21 states have internal predecessors, (126), 12 states have call successors, (21), 2 states have call predecessors, (21), 8 states have return successors, (24), 14 states have call predecessors, (24), 11 states have call successors, (24) [2024-11-19 11:10:09,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:09,536 INFO L93 Difference]: Finished difference Result 438 states and 477 transitions. [2024-11-19 11:10:09,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 11:10:09,536 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.0) internal successors, (126), 21 states have internal predecessors, (126), 12 states have call successors, (21), 2 states have call predecessors, (21), 8 states have return successors, (24), 14 states have call predecessors, (24), 11 states have call successors, (24) Word has length 674 [2024-11-19 11:10:09,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:09,538 INFO L225 Difference]: With dead ends: 438 [2024-11-19 11:10:09,538 INFO L226 Difference]: Without dead ends: 411 [2024-11-19 11:10:09,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1373 GetRequests, 1334 SyntacticMatches, 8 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=201, Invalid=855, Unknown=0, NotChecked=0, Total=1056 [2024-11-19 11:10:09,539 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 56 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:09,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 393 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:10:09,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-19 11:10:09,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 404. [2024-11-19 11:10:09,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 324 states have (on average 1.0185185185185186) internal successors, (330), 320 states have internal predecessors, (330), 50 states have call successors, (50), 35 states have call predecessors, (50), 29 states have return successors, (60), 48 states have call predecessors, (60), 49 states have call successors, (60) [2024-11-19 11:10:09,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 440 transitions. [2024-11-19 11:10:09,557 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 440 transitions. Word has length 674 [2024-11-19 11:10:09,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:09,557 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 440 transitions. [2024-11-19 11:10:09,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.0) internal successors, (126), 21 states have internal predecessors, (126), 12 states have call successors, (21), 2 states have call predecessors, (21), 8 states have return successors, (24), 14 states have call predecessors, (24), 11 states have call successors, (24) [2024-11-19 11:10:09,557 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 440 transitions. [2024-11-19 11:10:09,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2024-11-19 11:10:09,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:09,560 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 33, 32, 27, 27, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 11, 10, 7, 6, 1, 1, 1, 1] [2024-11-19 11:10:09,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-19 11:10:09,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:09,761 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-19 11:10:09,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:09,762 INFO L85 PathProgramCache]: Analyzing trace with hash -330128645, now seen corresponding path program 11 times [2024-11-19 11:10:09,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:09,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933326222] [2024-11-19 11:10:09,762 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 11:10:09,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:09,819 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2024-11-19 11:10:09,819 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1314 proven. 1882 refuted. 0 times theorem prover too weak. 4358 trivial. 0 not checked. [2024-11-19 11:10:14,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:14,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933326222] [2024-11-19 11:10:14,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933326222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:14,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536968112] [2024-11-19 11:10:14,362 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 11:10:14,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:14,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:14,364 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:10:14,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-19 11:10:14,681 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2024-11-19 11:10:14,682 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:14,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 133 conjuncts are in the unsatisfiable core [2024-11-19 11:10:14,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:15,284 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1237 proven. 1440 refuted. 0 times theorem prover too weak. 4877 trivial. 0 not checked. [2024-11-19 11:10:15,284 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1543 proven. 1316 refuted. 0 times theorem prover too weak. 4695 trivial. 0 not checked. [2024-11-19 11:10:29,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536968112] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:29,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:29,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 36, 46] total 80 [2024-11-19 11:10:29,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81539886] [2024-11-19 11:10:29,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:29,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2024-11-19 11:10:29,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:29,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2024-11-19 11:10:29,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=767, Invalid=5713, Unknown=0, NotChecked=0, Total=6480 [2024-11-19 11:10:29,822 INFO L87 Difference]: Start difference. First operand 404 states and 440 transitions. Second operand has 81 states, 80 states have (on average 2.625) internal successors, (210), 81 states have internal predecessors, (210), 20 states have call successors, (22), 1 states have call predecessors, (22), 24 states have return successors, (56), 55 states have call predecessors, (56), 20 states have call successors, (56) [2024-11-19 11:10:30,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:30,054 INFO L93 Difference]: Finished difference Result 430 states and 468 transitions. [2024-11-19 11:10:30,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-19 11:10:30,055 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 80 states have (on average 2.625) internal successors, (210), 81 states have internal predecessors, (210), 20 states have call successors, (22), 1 states have call predecessors, (22), 24 states have return successors, (56), 55 states have call predecessors, (56), 20 states have call successors, (56) Word has length 653 [2024-11-19 11:10:30,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:30,056 INFO L225 Difference]: With dead ends: 430 [2024-11-19 11:10:30,056 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 11:10:30,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1442 GetRequests, 1263 SyntacticMatches, 95 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9534 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=879, Invalid=6431, Unknown=0, NotChecked=0, Total=7310 [2024-11-19 11:10:30,059 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 10 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:30,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 850 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:10:30,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 11:10:30,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 11:10:30,063 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 11:10:30,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 11:10:30,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 653 [2024-11-19 11:10:30,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:30,064 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 11:10:30,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 80 states have (on average 2.625) internal successors, (210), 81 states have internal predecessors, (210), 20 states have call successors, (22), 1 states have call predecessors, (22), 24 states have return successors, (56), 55 states have call predecessors, (56), 20 states have call successors, (56) [2024-11-19 11:10:30,064 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 11:10:30,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 11:10:30,067 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2024-11-19 11:10:30,067 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2024-11-19 11:10:30,067 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2024-11-19 11:10:30,067 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2024-11-19 11:10:30,067 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2024-11-19 11:10:30,067 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2024-11-19 11:10:30,067 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2024-11-19 11:10:30,067 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2024-11-19 11:10:30,068 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2024-11-19 11:10:30,068 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2024-11-19 11:10:30,068 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2024-11-19 11:10:30,068 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2024-11-19 11:10:30,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-19 11:10:30,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-19 11:10:30,276 INFO L407 BasicCegarLoop]: Path program histogram: [11, 8, 2, 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 11:10:30,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.