./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 23:05:10,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 23:05:10,252 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-22 23:05:10,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 23:05:10,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 23:05:10,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 23:05:10,289 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 23:05:10,289 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 23:05:10,290 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 23:05:10,291 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 23:05:10,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 23:05:10,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 23:05:10,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 23:05:10,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 23:05:10,294 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 23:05:10,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 23:05:10,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 23:05:10,294 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 23:05:10,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 23:05:10,302 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 23:05:10,302 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 23:05:10,304 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 23:05:10,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 23:05:10,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 23:05:10,305 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 23:05:10,305 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-22 23:05:10,305 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 23:05:10,305 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 23:05:10,305 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 23:05:10,305 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 23:05:10,306 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 23:05:10,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 23:05:10,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 23:05:10,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 23:05:10,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 23:05:10,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 23:05:10,307 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 23:05:10,307 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 23:05:10,307 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 23:05:10,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 23:05:10,308 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 23:05:10,308 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 23:05:10,309 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 23:05:10,309 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 23:05:10,309 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 [2024-11-22 23:05:10,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 23:05:10,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 23:05:10,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 23:05:10,531 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 23:05:10,531 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 23:05:10,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-11-22 23:05:11,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 23:05:11,887 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 23:05:11,887 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-11-22 23:05:11,894 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd12fe9ff/b24f87a2e1f942019f6760b1fc21b93e/FLAG1d011db97 [2024-11-22 23:05:12,308 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd12fe9ff/b24f87a2e1f942019f6760b1fc21b93e [2024-11-22 23:05:12,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 23:05:12,312 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 23:05:12,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 23:05:12,313 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 23:05:12,320 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 23:05:12,321 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:05:12" (1/1) ... [2024-11-22 23:05:12,322 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 22.11 11:05:12, skipping insertion in model container [2024-11-22 23:05:12,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:05:12" (1/1) ... [2024-11-22 23:05:12,337 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 23:05:12,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 23:05:12,484 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 23:05:12,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 23:05:12,508 INFO L204 MainTranslator]: Completed translation [2024-11-22 23:05:12,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:12 WrapperNode [2024-11-22 23:05:12,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 23:05:12,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 23:05:12,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 23:05:12,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 23:05:12,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:12" (1/1) ... [2024-11-22 23:05:12,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:12" (1/1) ... [2024-11-22 23:05:12,533 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2024-11-22 23:05:12,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 23:05:12,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 23:05:12,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 23:05:12,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 23:05:12,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:12" (1/1) ... [2024-11-22 23:05:12,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:12" (1/1) ... [2024-11-22 23:05:12,542 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:12" (1/1) ... [2024-11-22 23:05:12,550 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]. [2024-11-22 23:05:12,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:12" (1/1) ... [2024-11-22 23:05:12,550 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:12" (1/1) ... [2024-11-22 23:05:12,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:12" (1/1) ... [2024-11-22 23:05:12,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:12" (1/1) ... [2024-11-22 23:05:12,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:12" (1/1) ... [2024-11-22 23:05:12,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:12" (1/1) ... [2024-11-22 23:05:12,556 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 23:05:12,557 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 23:05:12,557 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 23:05:12,557 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 23:05:12,558 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:12" (1/1) ... [2024-11-22 23:05:12,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 23:05:12,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:12,582 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) [2024-11-22 23:05:12,584 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 [2024-11-22 23:05:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 23:05:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 23:05:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-11-22 23:05:12,622 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-11-22 23:05:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-11-22 23:05:12,622 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-11-22 23:05:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 23:05:12,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 23:05:12,668 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 23:05:12,670 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 23:05:12,818 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-22 23:05:12,818 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 23:05:12,833 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 23:05:12,834 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 23:05:12,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:05:12 BoogieIcfgContainer [2024-11-22 23:05:12,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 23:05:12,837 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 23:05:12,838 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 23:05:12,841 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 23:05:12,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:05:12" (1/3) ... [2024-11-22 23:05:12,842 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 22.11 11:05:12, skipping insertion in model container [2024-11-22 23:05:12,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:12" (2/3) ... [2024-11-22 23:05:12,843 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 22.11 11:05:12, skipping insertion in model container [2024-11-22 23:05:12,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:05:12" (3/3) ... [2024-11-22 23:05:12,844 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2024-11-22 23:05:12,858 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 23:05:12,858 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-22 23:05:12,897 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 23:05:12,903 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] [2024-11-22 23:05:12,903 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-22 23:05:12,906 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) [2024-11-22 23:05:12,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-22 23:05:12,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:12,911 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:05:12,912 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:12,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:12,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1867028009, now seen corresponding path program 1 times [2024-11-22 23:05:12,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:12,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036323392] [2024-11-22 23:05:12,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:12,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:13,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:13,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:13,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036323392] [2024-11-22 23:05:13,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036323392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:13,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:05:13,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 23:05:13,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213836770] [2024-11-22 23:05:13,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:13,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 23:05:13,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:13,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 23:05:13,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 23:05:13,073 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) [2024-11-22 23:05:13,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:13,104 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2024-11-22 23:05:13,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 23:05:13,107 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 [2024-11-22 23:05:13,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:13,112 INFO L225 Difference]: With dead ends: 59 [2024-11-22 23:05:13,113 INFO L226 Difference]: Without dead ends: 45 [2024-11-22 23:05:13,115 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 [2024-11-22 23:05:13,118 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 [2024-11-22 23:05:13,118 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] [2024-11-22 23:05:13,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-22 23:05:13,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2024-11-22 23:05:13,147 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) [2024-11-22 23:05:13,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2024-11-22 23:05:13,151 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 7 [2024-11-22 23:05:13,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:13,151 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2024-11-22 23:05:13,151 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) [2024-11-22 23:05:13,152 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2024-11-22 23:05:13,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-22 23:05:13,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:13,153 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:05:13,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 23:05:13,153 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:13,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:13,154 INFO L85 PathProgramCache]: Analyzing trace with hash 2043293518, now seen corresponding path program 1 times [2024-11-22 23:05:13,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:13,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45944645] [2024-11-22 23:05:13,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:13,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:13,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:13,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:13,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45944645] [2024-11-22 23:05:13,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45944645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:13,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:05:13,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 23:05:13,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14513434] [2024-11-22 23:05:13,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:13,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:05:13,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:13,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:05:13,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 23:05:13,215 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) [2024-11-22 23:05:13,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:13,294 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2024-11-22 23:05:13,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:05:13,294 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 [2024-11-22 23:05:13,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:13,297 INFO L225 Difference]: With dead ends: 64 [2024-11-22 23:05:13,298 INFO L226 Difference]: Without dead ends: 58 [2024-11-22 23:05:13,298 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 [2024-11-22 23:05:13,299 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 [2024-11-22 23:05:13,301 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] [2024-11-22 23:05:13,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-22 23:05:13,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2024-11-22 23:05:13,312 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) [2024-11-22 23:05:13,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2024-11-22 23:05:13,314 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 8 [2024-11-22 23:05:13,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:13,314 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2024-11-22 23:05:13,314 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) [2024-11-22 23:05:13,314 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2024-11-22 23:05:13,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-22 23:05:13,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:13,319 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:05:13,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 23:05:13,319 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:13,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:13,320 INFO L85 PathProgramCache]: Analyzing trace with hash -749725533, now seen corresponding path program 1 times [2024-11-22 23:05:13,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:13,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9292419] [2024-11-22 23:05:13,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:13,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:13,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:13,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:13,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9292419] [2024-11-22 23:05:13,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9292419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:13,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:05:13,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 23:05:13,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330191541] [2024-11-22 23:05:13,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:13,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 23:05:13,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:13,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 23:05:13,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 23:05:13,385 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) [2024-11-22 23:05:13,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:13,418 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2024-11-22 23:05:13,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 23:05:13,419 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 [2024-11-22 23:05:13,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:13,420 INFO L225 Difference]: With dead ends: 58 [2024-11-22 23:05:13,420 INFO L226 Difference]: Without dead ends: 56 [2024-11-22 23:05:13,421 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 [2024-11-22 23:05:13,423 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 [2024-11-22 23:05:13,425 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] [2024-11-22 23:05:13,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-22 23:05:13,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2024-11-22 23:05:13,433 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) [2024-11-22 23:05:13,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2024-11-22 23:05:13,437 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 13 [2024-11-22 23:05:13,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:13,437 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2024-11-22 23:05:13,437 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) [2024-11-22 23:05:13,437 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2024-11-22 23:05:13,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-22 23:05:13,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:13,438 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:05:13,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 23:05:13,438 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:13,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:13,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1766654982, now seen corresponding path program 1 times [2024-11-22 23:05:13,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:13,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53289149] [2024-11-22 23:05:13,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:13,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:13,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:13,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:13,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53289149] [2024-11-22 23:05:13,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53289149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:13,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:05:13,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 23:05:13,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900034644] [2024-11-22 23:05:13,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:13,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 23:05:13,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:13,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 23:05:13,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 23:05:13,540 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) [2024-11-22 23:05:13,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:13,652 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2024-11-22 23:05:13,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 23:05:13,653 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 [2024-11-22 23:05:13,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:13,654 INFO L225 Difference]: With dead ends: 58 [2024-11-22 23:05:13,654 INFO L226 Difference]: Without dead ends: 54 [2024-11-22 23:05:13,655 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 [2024-11-22 23:05:13,656 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 [2024-11-22 23:05:13,658 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] [2024-11-22 23:05:13,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-22 23:05:13,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2024-11-22 23:05:13,669 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) [2024-11-22 23:05:13,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2024-11-22 23:05:13,671 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 14 [2024-11-22 23:05:13,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:13,671 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2024-11-22 23:05:13,672 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) [2024-11-22 23:05:13,672 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2024-11-22 23:05:13,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-22 23:05:13,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:13,673 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] [2024-11-22 23:05:13,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 23:05:13,673 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:13,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:13,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2097999453, now seen corresponding path program 1 times [2024-11-22 23:05:13,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:13,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510373732] [2024-11-22 23:05:13,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:13,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:13,801 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 23:05:13,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:13,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510373732] [2024-11-22 23:05:13,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510373732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:13,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:05:13,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 23:05:13,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208549272] [2024-11-22 23:05:13,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:13,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:05:13,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:13,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:05:13,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 23:05:13,803 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) [2024-11-22 23:05:13,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:13,834 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2024-11-22 23:05:13,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:05:13,837 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 [2024-11-22 23:05:13,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:13,841 INFO L225 Difference]: With dead ends: 74 [2024-11-22 23:05:13,841 INFO L226 Difference]: Without dead ends: 69 [2024-11-22 23:05:13,842 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 [2024-11-22 23:05:13,842 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 [2024-11-22 23:05:13,842 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] [2024-11-22 23:05:13,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-22 23:05:13,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2024-11-22 23:05:13,854 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) [2024-11-22 23:05:13,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions. [2024-11-22 23:05:13,857 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 78 transitions. Word has length 23 [2024-11-22 23:05:13,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:13,858 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 78 transitions. [2024-11-22 23:05:13,858 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) [2024-11-22 23:05:13,858 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2024-11-22 23:05:13,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-22 23:05:13,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:13,859 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] [2024-11-22 23:05:13,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 23:05:13,859 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:13,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:13,859 INFO L85 PathProgramCache]: Analyzing trace with hash 624421350, now seen corresponding path program 1 times [2024-11-22 23:05:13,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:13,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121921328] [2024-11-22 23:05:13,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:13,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:13,958 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 23:05:13,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:13,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121921328] [2024-11-22 23:05:13,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121921328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:13,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137503909] [2024-11-22 23:05:13,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:13,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:13,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:13,962 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) [2024-11-22 23:05:13,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 23:05:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:13,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 23:05:14,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:14,100 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:14,102 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:05:14,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137503909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:14,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 23:05:14,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2024-11-22 23:05:14,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40452172] [2024-11-22 23:05:14,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:14,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 23:05:14,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:14,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 23:05:14,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-22 23:05:14,106 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) [2024-11-22 23:05:14,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:14,204 INFO L93 Difference]: Finished difference Result 113 states and 140 transitions. [2024-11-22 23:05:14,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 23:05:14,204 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 [2024-11-22 23:05:14,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:14,205 INFO L225 Difference]: With dead ends: 113 [2024-11-22 23:05:14,205 INFO L226 Difference]: Without dead ends: 63 [2024-11-22 23:05:14,206 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 [2024-11-22 23:05:14,206 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 [2024-11-22 23:05:14,206 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] [2024-11-22 23:05:14,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-22 23:05:14,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2024-11-22 23:05:14,217 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) [2024-11-22 23:05:14,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2024-11-22 23:05:14,221 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 24 [2024-11-22 23:05:14,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:14,221 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2024-11-22 23:05:14,221 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) [2024-11-22 23:05:14,222 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2024-11-22 23:05:14,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-22 23:05:14,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:14,222 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] [2024-11-22 23:05:14,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 23:05:14,423 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 [2024-11-22 23:05:14,423 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:14,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:14,424 INFO L85 PathProgramCache]: Analyzing trace with hash 120521327, now seen corresponding path program 1 times [2024-11-22 23:05:14,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:14,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102383646] [2024-11-22 23:05:14,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:14,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:14,468 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 23:05:14,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:14,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102383646] [2024-11-22 23:05:14,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102383646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:14,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:05:14,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 23:05:14,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376719721] [2024-11-22 23:05:14,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:14,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:05:14,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:14,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:05:14,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 23:05:14,470 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) [2024-11-22 23:05:14,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:14,499 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2024-11-22 23:05:14,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:05:14,499 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 [2024-11-22 23:05:14,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:14,500 INFO L225 Difference]: With dead ends: 83 [2024-11-22 23:05:14,500 INFO L226 Difference]: Without dead ends: 78 [2024-11-22 23:05:14,500 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 [2024-11-22 23:05:14,501 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 [2024-11-22 23:05:14,501 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] [2024-11-22 23:05:14,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-22 23:05:14,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2024-11-22 23:05:14,511 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) [2024-11-22 23:05:14,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2024-11-22 23:05:14,513 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 25 [2024-11-22 23:05:14,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:14,513 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2024-11-22 23:05:14,513 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) [2024-11-22 23:05:14,513 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2024-11-22 23:05:14,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-22 23:05:14,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:14,515 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] [2024-11-22 23:05:14,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 23:05:14,515 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:14,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:14,516 INFO L85 PathProgramCache]: Analyzing trace with hash -473230649, now seen corresponding path program 1 times [2024-11-22 23:05:14,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:14,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768961579] [2024-11-22 23:05:14,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:14,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:14,586 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 23:05:14,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:14,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768961579] [2024-11-22 23:05:14,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768961579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:14,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:05:14,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 23:05:14,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634720458] [2024-11-22 23:05:14,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:14,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:05:14,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:14,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:05:14,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 23:05:14,587 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) [2024-11-22 23:05:14,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:14,622 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2024-11-22 23:05:14,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:05:14,623 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 [2024-11-22 23:05:14,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:14,623 INFO L225 Difference]: With dead ends: 83 [2024-11-22 23:05:14,623 INFO L226 Difference]: Without dead ends: 81 [2024-11-22 23:05:14,624 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 [2024-11-22 23:05:14,624 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 [2024-11-22 23:05:14,624 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] [2024-11-22 23:05:14,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-22 23:05:14,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2024-11-22 23:05:14,639 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) [2024-11-22 23:05:14,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2024-11-22 23:05:14,640 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 29 [2024-11-22 23:05:14,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:14,641 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2024-11-22 23:05:14,642 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) [2024-11-22 23:05:14,642 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2024-11-22 23:05:14,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-22 23:05:14,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:14,643 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] [2024-11-22 23:05:14,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 23:05:14,643 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:14,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:14,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1773385638, now seen corresponding path program 1 times [2024-11-22 23:05:14,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:14,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975526545] [2024-11-22 23:05:14,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:14,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:14,698 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-22 23:05:14,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:14,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975526545] [2024-11-22 23:05:14,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975526545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:14,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439327287] [2024-11-22 23:05:14,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:14,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:14,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:14,701 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) [2024-11-22 23:05:14,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 23:05:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:14,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 23:05:14,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:14,815 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:14,817 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:14,990 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 23:05:14,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439327287] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:14,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:14,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-22 23:05:14,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577511335] [2024-11-22 23:05:14,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:14,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 23:05:14,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:14,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 23:05:14,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-22 23:05:14,992 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) [2024-11-22 23:05:15,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:15,309 INFO L93 Difference]: Finished difference Result 204 states and 275 transitions. [2024-11-22 23:05:15,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 23:05:15,310 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 [2024-11-22 23:05:15,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:15,311 INFO L225 Difference]: With dead ends: 204 [2024-11-22 23:05:15,311 INFO L226 Difference]: Without dead ends: 135 [2024-11-22 23:05:15,312 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 [2024-11-22 23:05:15,312 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 [2024-11-22 23:05:15,313 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] [2024-11-22 23:05:15,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-22 23:05:15,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 121. [2024-11-22 23:05:15,323 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) [2024-11-22 23:05:15,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 157 transitions. [2024-11-22 23:05:15,324 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 157 transitions. Word has length 30 [2024-11-22 23:05:15,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:15,324 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 157 transitions. [2024-11-22 23:05:15,324 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) [2024-11-22 23:05:15,324 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 157 transitions. [2024-11-22 23:05:15,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-22 23:05:15,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:15,325 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] [2024-11-22 23:05:15,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 23:05:15,525 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 [2024-11-22 23:05:15,526 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:15,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:15,526 INFO L85 PathProgramCache]: Analyzing trace with hash -463506674, now seen corresponding path program 2 times [2024-11-22 23:05:15,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:15,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251720940] [2024-11-22 23:05:15,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:05:15,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:15,534 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:05:15,534 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:15,615 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 23:05:15,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:15,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251720940] [2024-11-22 23:05:15,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251720940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:15,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401846401] [2024-11-22 23:05:15,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:05:15,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:15,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:15,616 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) [2024-11-22 23:05:15,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 23:05:15,648 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:05:15,648 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:15,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 23:05:15,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:15,687 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 23:05:15,688 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:05:15,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401846401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:15,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 23:05:15,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-22 23:05:15,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228885087] [2024-11-22 23:05:15,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:15,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:05:15,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:15,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:05:15,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:05:15,690 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) [2024-11-22 23:05:15,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:15,711 INFO L93 Difference]: Finished difference Result 130 states and 169 transitions. [2024-11-22 23:05:15,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:05:15,712 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 [2024-11-22 23:05:15,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:15,713 INFO L225 Difference]: With dead ends: 130 [2024-11-22 23:05:15,713 INFO L226 Difference]: Without dead ends: 129 [2024-11-22 23:05:15,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:05:15,715 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 [2024-11-22 23:05:15,716 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] [2024-11-22 23:05:15,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-22 23:05:15,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125. [2024-11-22 23:05:15,731 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) [2024-11-22 23:05:15,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 161 transitions. [2024-11-22 23:05:15,732 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 161 transitions. Word has length 42 [2024-11-22 23:05:15,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:15,732 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 161 transitions. [2024-11-22 23:05:15,732 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) [2024-11-22 23:05:15,732 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 161 transitions. [2024-11-22 23:05:15,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-22 23:05:15,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:15,733 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] [2024-11-22 23:05:15,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:15,933 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 [2024-11-22 23:05:15,934 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:15,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:15,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1483804933, now seen corresponding path program 1 times [2024-11-22 23:05:15,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:15,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465407257] [2024-11-22 23:05:15,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:15,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:16,015 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 23:05:16,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:16,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465407257] [2024-11-22 23:05:16,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465407257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:16,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020292010] [2024-11-22 23:05:16,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:16,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:16,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:16,020 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) [2024-11-22 23:05:16,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 23:05:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:16,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 23:05:16,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:16,197 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:16,197 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 23:05:16,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020292010] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:16,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:16,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 23 [2024-11-22 23:05:16,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642313004] [2024-11-22 23:05:16,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:16,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-22 23:05:16,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:16,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-22 23:05:16,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2024-11-22 23:05:16,396 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) [2024-11-22 23:05:16,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:16,923 INFO L93 Difference]: Finished difference Result 321 states and 423 transitions. [2024-11-22 23:05:16,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-22 23:05:16,923 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 [2024-11-22 23:05:16,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:16,924 INFO L225 Difference]: With dead ends: 321 [2024-11-22 23:05:16,924 INFO L226 Difference]: Without dead ends: 211 [2024-11-22 23:05:16,925 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 [2024-11-22 23:05:16,926 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 174 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:16,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1015 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 23:05:16,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-22 23:05:16,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 191. [2024-11-22 23:05:16,947 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) [2024-11-22 23:05:16,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 245 transitions. [2024-11-22 23:05:16,950 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 245 transitions. Word has length 43 [2024-11-22 23:05:16,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:16,950 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 245 transitions. [2024-11-22 23:05:16,951 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) [2024-11-22 23:05:16,951 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 245 transitions. [2024-11-22 23:05:16,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-22 23:05:16,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:16,955 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] [2024-11-22 23:05:16,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:17,155 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 [2024-11-22 23:05:17,156 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:17,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:17,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1504919224, now seen corresponding path program 1 times [2024-11-22 23:05:17,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:17,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707098953] [2024-11-22 23:05:17,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:17,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:17,208 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-22 23:05:17,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:17,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707098953] [2024-11-22 23:05:17,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707098953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:17,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524859465] [2024-11-22 23:05:17,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:17,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:17,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:17,210 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) [2024-11-22 23:05:17,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 23:05:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:17,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-22 23:05:17,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:17,448 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 13 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:17,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:17,677 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 23:05:17,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524859465] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:17,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:17,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 19, 19] total 24 [2024-11-22 23:05:17,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537314805] [2024-11-22 23:05:17,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:17,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-22 23:05:17,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:17,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-22 23:05:17,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2024-11-22 23:05:17,679 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) [2024-11-22 23:05:18,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:18,199 INFO L93 Difference]: Finished difference Result 406 states and 525 transitions. [2024-11-22 23:05:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-22 23:05:18,200 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 [2024-11-22 23:05:18,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:18,201 INFO L225 Difference]: With dead ends: 406 [2024-11-22 23:05:18,201 INFO L226 Difference]: Without dead ends: 236 [2024-11-22 23:05:18,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 93 SyntacticMatches, 16 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2024-11-22 23:05:18,202 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 195 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:18,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1200 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 23:05:18,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-22 23:05:18,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 213. [2024-11-22 23:05:18,220 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) [2024-11-22 23:05:18,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 274 transitions. [2024-11-22 23:05:18,223 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 274 transitions. Word has length 60 [2024-11-22 23:05:18,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:18,223 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 274 transitions. [2024-11-22 23:05:18,223 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) [2024-11-22 23:05:18,223 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 274 transitions. [2024-11-22 23:05:18,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-22 23:05:18,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:18,225 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] [2024-11-22 23:05:18,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 23:05:18,429 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 [2024-11-22 23:05:18,429 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:18,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:18,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1710163946, now seen corresponding path program 2 times [2024-11-22 23:05:18,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:18,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193853003] [2024-11-22 23:05:18,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:05:18,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:18,440 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:05:18,441 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-22 23:05:18,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:18,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193853003] [2024-11-22 23:05:18,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193853003] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:18,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718576600] [2024-11-22 23:05:18,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:05:18,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:18,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:18,500 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) [2024-11-22 23:05:18,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 23:05:18,531 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:05:18,531 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:18,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 23:05:18,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:18,563 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-22 23:05:18,563 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:05:18,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718576600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:18,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 23:05:18,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-22 23:05:18,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068493084] [2024-11-22 23:05:18,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:18,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:05:18,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:18,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:05:18,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 23:05:18,565 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) [2024-11-22 23:05:18,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:18,585 INFO L93 Difference]: Finished difference Result 226 states and 294 transitions. [2024-11-22 23:05:18,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:05:18,586 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 [2024-11-22 23:05:18,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:18,588 INFO L225 Difference]: With dead ends: 226 [2024-11-22 23:05:18,588 INFO L226 Difference]: Without dead ends: 225 [2024-11-22 23:05:18,588 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 [2024-11-22 23:05:18,589 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 [2024-11-22 23:05:18,589 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] [2024-11-22 23:05:18,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-22 23:05:18,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 221. [2024-11-22 23:05:18,600 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) [2024-11-22 23:05:18,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 282 transitions. [2024-11-22 23:05:18,603 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 282 transitions. Word has length 60 [2024-11-22 23:05:18,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:18,603 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 282 transitions. [2024-11-22 23:05:18,604 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) [2024-11-22 23:05:18,604 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 282 transitions. [2024-11-22 23:05:18,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-22 23:05:18,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:18,604 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] [2024-11-22 23:05:18,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 23:05:18,808 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 [2024-11-22 23:05:18,809 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:18,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:18,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1475474675, now seen corresponding path program 1 times [2024-11-22 23:05:18,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:18,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604470545] [2024-11-22 23:05:18,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:18,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:18,877 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-22 23:05:18,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:18,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604470545] [2024-11-22 23:05:18,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604470545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:18,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700846953] [2024-11-22 23:05:18,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:18,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:18,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:18,882 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) [2024-11-22 23:05:18,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 23:05:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:18,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 23:05:18,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:18,952 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-22 23:05:18,952 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:05:18,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700846953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:18,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 23:05:18,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-22 23:05:18,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130823743] [2024-11-22 23:05:18,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:18,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 23:05:18,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:18,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 23:05:18,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-22 23:05:18,972 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) [2024-11-22 23:05:19,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:19,006 INFO L93 Difference]: Finished difference Result 237 states and 303 transitions. [2024-11-22 23:05:19,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 23:05:19,006 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 [2024-11-22 23:05:19,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:19,007 INFO L225 Difference]: With dead ends: 237 [2024-11-22 23:05:19,007 INFO L226 Difference]: Without dead ends: 236 [2024-11-22 23:05:19,008 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 [2024-11-22 23:05:19,008 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 [2024-11-22 23:05:19,008 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] [2024-11-22 23:05:19,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-22 23:05:19,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 217. [2024-11-22 23:05:19,015 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) [2024-11-22 23:05:19,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 275 transitions. [2024-11-22 23:05:19,016 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 275 transitions. Word has length 61 [2024-11-22 23:05:19,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:19,016 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 275 transitions. [2024-11-22 23:05:19,017 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) [2024-11-22 23:05:19,017 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 275 transitions. [2024-11-22 23:05:19,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-22 23:05:19,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:19,017 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] [2024-11-22 23:05:19,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:19,218 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 [2024-11-22 23:05:19,218 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:19,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:19,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1055529936, now seen corresponding path program 1 times [2024-11-22 23:05:19,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:19,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655622803] [2024-11-22 23:05:19,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:19,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-22 23:05:19,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:19,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655622803] [2024-11-22 23:05:19,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655622803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:19,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:05:19,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 23:05:19,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194424254] [2024-11-22 23:05:19,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:19,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:05:19,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:19,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:05:19,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 23:05:19,277 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) [2024-11-22 23:05:19,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:19,301 INFO L93 Difference]: Finished difference Result 227 states and 287 transitions. [2024-11-22 23:05:19,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:05:19,301 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 [2024-11-22 23:05:19,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:19,302 INFO L225 Difference]: With dead ends: 227 [2024-11-22 23:05:19,302 INFO L226 Difference]: Without dead ends: 226 [2024-11-22 23:05:19,302 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 [2024-11-22 23:05:19,303 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 [2024-11-22 23:05:19,303 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] [2024-11-22 23:05:19,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-22 23:05:19,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 211. [2024-11-22 23:05:19,312 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) [2024-11-22 23:05:19,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 262 transitions. [2024-11-22 23:05:19,314 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 262 transitions. Word has length 77 [2024-11-22 23:05:19,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:19,314 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 262 transitions. [2024-11-22 23:05:19,314 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) [2024-11-22 23:05:19,314 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 262 transitions. [2024-11-22 23:05:19,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 23:05:19,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:19,315 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] [2024-11-22 23:05:19,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 23:05:19,315 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:19,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:19,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1329146264, now seen corresponding path program 1 times [2024-11-22 23:05:19,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:19,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770372590] [2024-11-22 23:05:19,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:19,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:19,367 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-22 23:05:19,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:19,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770372590] [2024-11-22 23:05:19,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770372590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:19,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772945987] [2024-11-22 23:05:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:19,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:19,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:19,370 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) [2024-11-22 23:05:19,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 23:05:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:19,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-22 23:05:19,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:19,580 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 58 proven. 43 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 23:05:19,580 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:19,789 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 58 proven. 43 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 23:05:19,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772945987] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:19,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:19,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 19, 19] total 23 [2024-11-22 23:05:19,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726908477] [2024-11-22 23:05:19,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:19,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-22 23:05:19,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:19,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-22 23:05:19,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2024-11-22 23:05:19,791 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) [2024-11-22 23:05:20,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:20,319 INFO L93 Difference]: Finished difference Result 583 states and 775 transitions. [2024-11-22 23:05:20,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-22 23:05:20,320 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 [2024-11-22 23:05:20,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:20,321 INFO L225 Difference]: With dead ends: 583 [2024-11-22 23:05:20,321 INFO L226 Difference]: Without dead ends: 393 [2024-11-22 23:05:20,323 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 [2024-11-22 23:05:20,323 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, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:20,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 383 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 23:05:20,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-22 23:05:20,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 362. [2024-11-22 23:05:20,338 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) [2024-11-22 23:05:20,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 453 transitions. [2024-11-22 23:05:20,341 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 453 transitions. Word has length 79 [2024-11-22 23:05:20,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:20,341 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 453 transitions. [2024-11-22 23:05:20,341 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) [2024-11-22 23:05:20,341 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 453 transitions. [2024-11-22 23:05:20,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 23:05:20,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:20,343 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] [2024-11-22 23:05:20,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 23:05:20,544 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 [2024-11-22 23:05:20,544 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:20,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:20,545 INFO L85 PathProgramCache]: Analyzing trace with hash -932529083, now seen corresponding path program 1 times [2024-11-22 23:05:20,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:20,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233231164] [2024-11-22 23:05:20,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:20,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:20,586 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-22 23:05:20,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:20,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233231164] [2024-11-22 23:05:20,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233231164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:20,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:05:20,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 23:05:20,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151628686] [2024-11-22 23:05:20,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:20,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:05:20,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:20,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:05:20,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 23:05:20,587 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) [2024-11-22 23:05:20,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:20,609 INFO L93 Difference]: Finished difference Result 390 states and 492 transitions. [2024-11-22 23:05:20,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:05:20,610 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 [2024-11-22 23:05:20,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:20,611 INFO L225 Difference]: With dead ends: 390 [2024-11-22 23:05:20,611 INFO L226 Difference]: Without dead ends: 389 [2024-11-22 23:05:20,612 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 [2024-11-22 23:05:20,612 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 [2024-11-22 23:05:20,612 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] [2024-11-22 23:05:20,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-22 23:05:20,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 375. [2024-11-22 23:05:20,624 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) [2024-11-22 23:05:20,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 473 transitions. [2024-11-22 23:05:20,626 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 473 transitions. Word has length 74 [2024-11-22 23:05:20,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:20,626 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 473 transitions. [2024-11-22 23:05:20,626 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) [2024-11-22 23:05:20,626 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 473 transitions. [2024-11-22 23:05:20,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-22 23:05:20,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:20,627 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] [2024-11-22 23:05:20,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 23:05:20,627 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:20,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:20,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1524107692, now seen corresponding path program 1 times [2024-11-22 23:05:20,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:20,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888244577] [2024-11-22 23:05:20,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:20,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:20,718 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-22 23:05:20,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:20,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888244577] [2024-11-22 23:05:20,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888244577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:20,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149661971] [2024-11-22 23:05:20,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:20,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:20,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:20,721 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) [2024-11-22 23:05:20,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 23:05:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:20,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 23:05:20,768 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-22 23:05:20,849 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:05:20,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149661971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:20,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 23:05:20,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 14 [2024-11-22 23:05:20,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761631028] [2024-11-22 23:05:20,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:20,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 23:05:20,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:20,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 23:05:20,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-22 23:05:20,850 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) [2024-11-22 23:05:20,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:20,909 INFO L93 Difference]: Finished difference Result 481 states and 631 transitions. [2024-11-22 23:05:20,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 23:05:20,910 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 [2024-11-22 23:05:20,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:20,913 INFO L225 Difference]: With dead ends: 481 [2024-11-22 23:05:20,913 INFO L226 Difference]: Without dead ends: 480 [2024-11-22 23:05:20,913 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 [2024-11-22 23:05:20,914 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 [2024-11-22 23:05:20,915 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] [2024-11-22 23:05:20,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-22 23:05:20,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 411. [2024-11-22 23:05:20,930 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) [2024-11-22 23:05:20,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 535 transitions. [2024-11-22 23:05:20,932 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 535 transitions. Word has length 75 [2024-11-22 23:05:20,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:20,932 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 535 transitions. [2024-11-22 23:05:20,932 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) [2024-11-22 23:05:20,933 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 535 transitions. [2024-11-22 23:05:20,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-22 23:05:20,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:20,934 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] [2024-11-22 23:05:20,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:21,138 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 [2024-11-22 23:05:21,138 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:21,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:21,139 INFO L85 PathProgramCache]: Analyzing trace with hash -121328009, now seen corresponding path program 1 times [2024-11-22 23:05:21,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:21,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997037061] [2024-11-22 23:05:21,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:21,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:21,179 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-22 23:05:21,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:21,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997037061] [2024-11-22 23:05:21,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997037061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:21,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962480509] [2024-11-22 23:05:21,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:21,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:21,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:21,182 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) [2024-11-22 23:05:21,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 23:05:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:21,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-22 23:05:21,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:21,426 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 75 proven. 48 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 23:05:21,426 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 75 proven. 48 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 23:05:21,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962480509] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:21,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:21,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 21, 21] total 42 [2024-11-22 23:05:21,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712969486] [2024-11-22 23:05:21,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:21,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-22 23:05:21,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:21,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-22 23:05:21,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1525, Unknown=0, NotChecked=0, Total=1722 [2024-11-22 23:05:21,714 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) [2024-11-22 23:05:22,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:22,527 INFO L93 Difference]: Finished difference Result 842 states and 1139 transitions. [2024-11-22 23:05:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-22 23:05:22,528 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 [2024-11-22 23:05:22,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:22,530 INFO L225 Difference]: With dead ends: 842 [2024-11-22 23:05:22,530 INFO L226 Difference]: Without dead ends: 487 [2024-11-22 23:05:22,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 143 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1341 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=712, Invalid=3980, Unknown=0, NotChecked=0, Total=4692 [2024-11-22 23:05:22,534 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 [2024-11-22 23:05:22,534 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] [2024-11-22 23:05:22,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-22 23:05:22,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 436. [2024-11-22 23:05:22,549 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) [2024-11-22 23:05:22,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 558 transitions. [2024-11-22 23:05:22,551 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 558 transitions. Word has length 84 [2024-11-22 23:05:22,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:22,552 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 558 transitions. [2024-11-22 23:05:22,552 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) [2024-11-22 23:05:22,552 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 558 transitions. [2024-11-22 23:05:22,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 23:05:22,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:22,553 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] [2024-11-22 23:05:22,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-22 23:05:22,757 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 [2024-11-22 23:05:22,757 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:22,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:22,758 INFO L85 PathProgramCache]: Analyzing trace with hash 679118242, now seen corresponding path program 1 times [2024-11-22 23:05:22,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:22,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684372731] [2024-11-22 23:05:22,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:22,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:22,805 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-22 23:05:22,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:22,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684372731] [2024-11-22 23:05:22,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684372731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:22,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:05:22,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 23:05:22,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438690796] [2024-11-22 23:05:22,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:22,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:05:22,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:22,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:05:22,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 23:05:22,807 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) [2024-11-22 23:05:22,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:22,833 INFO L93 Difference]: Finished difference Result 452 states and 577 transitions. [2024-11-22 23:05:22,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:05:22,834 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 [2024-11-22 23:05:22,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:22,845 INFO L225 Difference]: With dead ends: 452 [2024-11-22 23:05:22,846 INFO L226 Difference]: Without dead ends: 451 [2024-11-22 23:05:22,846 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 [2024-11-22 23:05:22,846 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 [2024-11-22 23:05:22,846 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] [2024-11-22 23:05:22,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-22 23:05:22,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 438. [2024-11-22 23:05:22,860 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) [2024-11-22 23:05:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 559 transitions. [2024-11-22 23:05:22,862 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 559 transitions. Word has length 79 [2024-11-22 23:05:22,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:22,862 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 559 transitions. [2024-11-22 23:05:22,862 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) [2024-11-22 23:05:22,862 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 559 transitions. [2024-11-22 23:05:22,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 23:05:22,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:22,863 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] [2024-11-22 23:05:22,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 23:05:22,864 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:22,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:22,864 INFO L85 PathProgramCache]: Analyzing trace with hash -916701128, now seen corresponding path program 1 times [2024-11-22 23:05:22,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:22,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14377249] [2024-11-22 23:05:22,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:22,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:23,076 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 50 proven. 63 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-22 23:05:23,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:23,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14377249] [2024-11-22 23:05:23,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14377249] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:23,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956959833] [2024-11-22 23:05:23,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:23,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:23,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:23,079 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) [2024-11-22 23:05:23,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 23:05:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:23,114 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 23:05:23,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:23,209 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-22 23:05:23,209 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:23,367 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-22 23:05:23,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956959833] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:23,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:23,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8, 7] total 31 [2024-11-22 23:05:23,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422472353] [2024-11-22 23:05:23,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:23,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-22 23:05:23,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:23,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-22 23:05:23,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2024-11-22 23:05:23,369 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) [2024-11-22 23:05:24,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:24,331 INFO L93 Difference]: Finished difference Result 940 states and 1243 transitions. [2024-11-22 23:05:24,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-22 23:05:24,331 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 [2024-11-22 23:05:24,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:24,334 INFO L225 Difference]: With dead ends: 940 [2024-11-22 23:05:24,334 INFO L226 Difference]: Without dead ends: 577 [2024-11-22 23:05:24,337 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 [2024-11-22 23:05:24,337 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 265 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:24,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 442 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 23:05:24,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-22 23:05:24,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 437. [2024-11-22 23:05:24,356 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) [2024-11-22 23:05:24,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 568 transitions. [2024-11-22 23:05:24,358 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 568 transitions. Word has length 92 [2024-11-22 23:05:24,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:24,359 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 568 transitions. [2024-11-22 23:05:24,359 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) [2024-11-22 23:05:24,359 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 568 transitions. [2024-11-22 23:05:24,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 23:05:24,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:24,360 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] [2024-11-22 23:05:24,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-22 23:05:24,563 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 [2024-11-22 23:05:24,564 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:24,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:24,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1108261630, now seen corresponding path program 1 times [2024-11-22 23:05:24,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:24,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327715597] [2024-11-22 23:05:24,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:24,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 14 proven. 83 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-22 23:05:24,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:24,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327715597] [2024-11-22 23:05:24,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327715597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:24,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502196214] [2024-11-22 23:05:24,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:24,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:24,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:24,757 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) [2024-11-22 23:05:24,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 23:05:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:24,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 23:05:24,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:24,835 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 34 proven. 73 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-22 23:05:24,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:25,049 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 14 proven. 83 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-22 23:05:25,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502196214] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:25,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:25,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 19 [2024-11-22 23:05:25,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864470240] [2024-11-22 23:05:25,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:25,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 23:05:25,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:25,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 23:05:25,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-11-22 23:05:25,052 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) [2024-11-22 23:05:25,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:25,319 INFO L93 Difference]: Finished difference Result 841 states and 1097 transitions. [2024-11-22 23:05:25,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-22 23:05:25,320 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 [2024-11-22 23:05:25,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:25,322 INFO L225 Difference]: With dead ends: 841 [2024-11-22 23:05:25,322 INFO L226 Difference]: Without dead ends: 468 [2024-11-22 23:05:25,323 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 [2024-11-22 23:05:25,324 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 [2024-11-22 23:05:25,324 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] [2024-11-22 23:05:25,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-22 23:05:25,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 437. [2024-11-22 23:05:25,339 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) [2024-11-22 23:05:25,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 560 transitions. [2024-11-22 23:05:25,341 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 560 transitions. Word has length 88 [2024-11-22 23:05:25,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:25,342 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 560 transitions. [2024-11-22 23:05:25,343 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) [2024-11-22 23:05:25,343 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 560 transitions. [2024-11-22 23:05:25,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-22 23:05:25,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:25,344 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] [2024-11-22 23:05:25,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:25,544 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 [2024-11-22 23:05:25,544 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:25,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:25,545 INFO L85 PathProgramCache]: Analyzing trace with hash 870027817, now seen corresponding path program 1 times [2024-11-22 23:05:25,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:25,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908008690] [2024-11-22 23:05:25,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:25,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:25,671 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 23:05:25,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:25,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908008690] [2024-11-22 23:05:25,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908008690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:25,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904833265] [2024-11-22 23:05:25,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:25,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:25,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:25,675 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) [2024-11-22 23:05:25,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-22 23:05:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:25,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-22 23:05:25,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:25,750 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 23:05:25,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:25,883 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 23:05:25,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904833265] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:25,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:25,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 16 [2024-11-22 23:05:25,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709951836] [2024-11-22 23:05:25,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:25,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 23:05:25,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:25,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 23:05:25,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-22 23:05:25,885 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) [2024-11-22 23:05:26,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:26,067 INFO L93 Difference]: Finished difference Result 793 states and 1022 transitions. [2024-11-22 23:05:26,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 23:05:26,067 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 [2024-11-22 23:05:26,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:26,070 INFO L225 Difference]: With dead ends: 793 [2024-11-22 23:05:26,070 INFO L226 Difference]: Without dead ends: 441 [2024-11-22 23:05:26,071 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 [2024-11-22 23:05:26,072 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 [2024-11-22 23:05:26,072 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] [2024-11-22 23:05:26,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-22 23:05:26,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 431. [2024-11-22 23:05:26,094 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) [2024-11-22 23:05:26,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 551 transitions. [2024-11-22 23:05:26,097 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 551 transitions. Word has length 89 [2024-11-22 23:05:26,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:26,097 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 551 transitions. [2024-11-22 23:05:26,098 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) [2024-11-22 23:05:26,098 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 551 transitions. [2024-11-22 23:05:26,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 23:05:26,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:26,099 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] [2024-11-22 23:05:26,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-22 23:05:26,303 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 [2024-11-22 23:05:26,304 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:26,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:26,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1952719999, now seen corresponding path program 1 times [2024-11-22 23:05:26,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:26,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842397281] [2024-11-22 23:05:26,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:26,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:26,508 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 47 proven. 72 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 23:05:26,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:26,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842397281] [2024-11-22 23:05:26,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842397281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:26,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208393487] [2024-11-22 23:05:26,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:26,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:26,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:26,510 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) [2024-11-22 23:05:26,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-22 23:05:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:26,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-22 23:05:26,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:26,675 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-22 23:05:26,675 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:27,009 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-22 23:05:27,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208393487] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:27,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:27,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 9, 11] total 36 [2024-11-22 23:05:27,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470911297] [2024-11-22 23:05:27,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:27,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-22 23:05:27,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:27,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-22 23:05:27,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1156, Unknown=0, NotChecked=0, Total=1260 [2024-11-22 23:05:27,010 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) [2024-11-22 23:05:28,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:28,515 INFO L93 Difference]: Finished difference Result 1151 states and 1605 transitions. [2024-11-22 23:05:28,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-11-22 23:05:28,516 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 [2024-11-22 23:05:28,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:28,522 INFO L225 Difference]: With dead ends: 1151 [2024-11-22 23:05:28,522 INFO L226 Difference]: Without dead ends: 772 [2024-11-22 23:05:28,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 190 SyntacticMatches, 3 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3142 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1349, Invalid=9781, Unknown=0, NotChecked=0, Total=11130 [2024-11-22 23:05:28,526 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 391 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 1853 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:28,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 503 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1853 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 23:05:28,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2024-11-22 23:05:28,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 605. [2024-11-22 23:05:28,551 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) [2024-11-22 23:05:28,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 863 transitions. [2024-11-22 23:05:28,558 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 863 transitions. Word has length 93 [2024-11-22 23:05:28,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:28,558 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 863 transitions. [2024-11-22 23:05:28,558 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) [2024-11-22 23:05:28,559 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 863 transitions. [2024-11-22 23:05:28,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-22 23:05:28,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:28,559 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] [2024-11-22 23:05:28,569 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-22 23:05:28,760 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 [2024-11-22 23:05:28,760 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:28,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:28,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1507205499, now seen corresponding path program 1 times [2024-11-22 23:05:28,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:28,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540333965] [2024-11-22 23:05:28,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:28,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:28,805 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-22 23:05:28,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:28,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540333965] [2024-11-22 23:05:28,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540333965] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:28,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219511209] [2024-11-22 23:05:28,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:28,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:28,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:28,808 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) [2024-11-22 23:05:28,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-22 23:05:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:28,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 23:05:28,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:28,989 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 33 proven. 100 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 23:05:28,989 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:29,195 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 33 proven. 100 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 23:05:29,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219511209] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:29,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:29,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 17, 17] total 21 [2024-11-22 23:05:29,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767183659] [2024-11-22 23:05:29,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:29,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-22 23:05:29,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:29,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-22 23:05:29,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-11-22 23:05:29,196 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) [2024-11-22 23:05:29,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:29,416 INFO L93 Difference]: Finished difference Result 1108 states and 1642 transitions. [2024-11-22 23:05:29,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 23:05:29,416 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 [2024-11-22 23:05:29,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:29,419 INFO L225 Difference]: With dead ends: 1108 [2024-11-22 23:05:29,419 INFO L226 Difference]: Without dead ends: 567 [2024-11-22 23:05:29,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 191 SyntacticMatches, 13 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2024-11-22 23:05:29,422 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 205 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:29,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 469 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:05:29,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-22 23:05:29,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 557. [2024-11-22 23:05:29,441 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) [2024-11-22 23:05:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 748 transitions. [2024-11-22 23:05:29,443 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 748 transitions. Word has length 106 [2024-11-22 23:05:29,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:29,443 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 748 transitions. [2024-11-22 23:05:29,443 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) [2024-11-22 23:05:29,443 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 748 transitions. [2024-11-22 23:05:29,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 23:05:29,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:29,444 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] [2024-11-22 23:05:29,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-22 23:05:29,647 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 [2024-11-22 23:05:29,648 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:29,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:29,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1606036922, now seen corresponding path program 2 times [2024-11-22 23:05:29,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:29,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769826923] [2024-11-22 23:05:29,648 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:05:29,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:29,656 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:05:29,656 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:29,827 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 8 proven. 27 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-22 23:05:29,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:29,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769826923] [2024-11-22 23:05:29,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769826923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:29,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963467499] [2024-11-22 23:05:29,828 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:05:29,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:29,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:29,830 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) [2024-11-22 23:05:29,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-22 23:05:29,869 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:05:29,869 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:29,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 23:05:29,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:30,042 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-22 23:05:30,042 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:30,472 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 14 proven. 21 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-22 23:05:30,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963467499] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:30,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:30,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 34 [2024-11-22 23:05:30,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806622535] [2024-11-22 23:05:30,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:30,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-22 23:05:30,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:30,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-22 23:05:30,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1040, Unknown=0, NotChecked=0, Total=1190 [2024-11-22 23:05:30,475 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) [2024-11-22 23:05:30,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:30,866 INFO L93 Difference]: Finished difference Result 1074 states and 1626 transitions. [2024-11-22 23:05:30,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-22 23:05:30,867 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 [2024-11-22 23:05:30,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:30,871 INFO L225 Difference]: With dead ends: 1074 [2024-11-22 23:05:30,871 INFO L226 Difference]: Without dead ends: 1071 [2024-11-22 23:05:30,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 190 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 831 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=409, Invalid=2561, Unknown=0, NotChecked=0, Total=2970 [2024-11-22 23:05:30,872 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 44 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:30,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 619 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:05:30,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-11-22 23:05:30,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 794. [2024-11-22 23:05:30,906 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) [2024-11-22 23:05:30,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1158 transitions. [2024-11-22 23:05:30,909 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1158 transitions. Word has length 107 [2024-11-22 23:05:30,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:30,909 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1158 transitions. [2024-11-22 23:05:30,909 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) [2024-11-22 23:05:30,909 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1158 transitions. [2024-11-22 23:05:30,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-22 23:05:30,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:30,910 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] [2024-11-22 23:05:30,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:31,113 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 [2024-11-22 23:05:31,114 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:31,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:31,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1752462871, now seen corresponding path program 1 times [2024-11-22 23:05:31,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:31,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585981024] [2024-11-22 23:05:31,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:31,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:31,297 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 12 proven. 24 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-22 23:05:31,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:31,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585981024] [2024-11-22 23:05:31,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585981024] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:31,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730358514] [2024-11-22 23:05:31,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:31,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:31,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:31,300 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) [2024-11-22 23:05:31,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-22 23:05:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:31,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-22 23:05:31,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-22 23:05:31,456 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:31,823 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-22 23:05:31,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730358514] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:31,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:31,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 16] total 33 [2024-11-22 23:05:31,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412701026] [2024-11-22 23:05:31,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:31,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-22 23:05:31,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:31,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-22 23:05:31,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=970, Unknown=0, NotChecked=0, Total=1122 [2024-11-22 23:05:31,826 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) [2024-11-22 23:05:32,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:32,103 INFO L93 Difference]: Finished difference Result 1225 states and 1902 transitions. [2024-11-22 23:05:32,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-22 23:05:32,103 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 [2024-11-22 23:05:32,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:32,108 INFO L225 Difference]: With dead ends: 1225 [2024-11-22 23:05:32,108 INFO L226 Difference]: Without dead ends: 1223 [2024-11-22 23:05:32,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 193 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=1707, Unknown=0, NotChecked=0, Total=1980 [2024-11-22 23:05:32,109 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 32 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:32,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 645 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:05:32,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2024-11-22 23:05:32,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 900. [2024-11-22 23:05:32,151 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) [2024-11-22 23:05:32,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1395 transitions. [2024-11-22 23:05:32,155 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1395 transitions. Word has length 108 [2024-11-22 23:05:32,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:32,155 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1395 transitions. [2024-11-22 23:05:32,155 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) [2024-11-22 23:05:32,155 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1395 transitions. [2024-11-22 23:05:32,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 23:05:32,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:32,156 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] [2024-11-22 23:05:32,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-22 23:05:32,360 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 [2024-11-22 23:05:32,360 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:32,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:32,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1104785409, now seen corresponding path program 1 times [2024-11-22 23:05:32,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:32,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722532347] [2024-11-22 23:05:32,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:32,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:32,495 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 23:05:32,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:32,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722532347] [2024-11-22 23:05:32,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722532347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:32,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175676301] [2024-11-22 23:05:32,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:32,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:32,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:32,498 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) [2024-11-22 23:05:32,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-22 23:05:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:32,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-22 23:05:32,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:32,596 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 23:05:32,596 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:32,784 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 23:05:32,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175676301] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:32,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:32,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 17 [2024-11-22 23:05:32,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195066446] [2024-11-22 23:05:32,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:32,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-22 23:05:32,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:32,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-22 23:05:32,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-22 23:05:32,785 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) [2024-11-22 23:05:32,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:32,993 INFO L93 Difference]: Finished difference Result 1743 states and 2758 transitions. [2024-11-22 23:05:32,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 23:05:32,993 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 [2024-11-22 23:05:32,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:32,997 INFO L225 Difference]: With dead ends: 1743 [2024-11-22 23:05:32,997 INFO L226 Difference]: Without dead ends: 921 [2024-11-22 23:05:33,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 275 SyntacticMatches, 11 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-11-22 23:05:33,001 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:33,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 375 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:05:33,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-11-22 23:05:33,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 912. [2024-11-22 23:05:33,040 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) [2024-11-22 23:05:33,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1410 transitions. [2024-11-22 23:05:33,045 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1410 transitions. Word has length 142 [2024-11-22 23:05:33,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:33,045 INFO L471 AbstractCegarLoop]: Abstraction has 912 states and 1410 transitions. [2024-11-22 23:05:33,045 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) [2024-11-22 23:05:33,045 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1410 transitions. [2024-11-22 23:05:33,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-22 23:05:33,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:33,046 INFO L215 NwaCegarLoop]: trace histogram [10, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2024-11-22 23:05:33,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:33,246 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 [2024-11-22 23:05:33,247 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:33,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:33,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1146617985, now seen corresponding path program 2 times [2024-11-22 23:05:33,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:33,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695863154] [2024-11-22 23:05:33,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:05:33,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:33,259 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:05:33,259 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:33,594 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 45 proven. 85 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-22 23:05:33,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:33,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695863154] [2024-11-22 23:05:33,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695863154] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:33,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107461067] [2024-11-22 23:05:33,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:05:33,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:33,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:33,596 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) [2024-11-22 23:05:33,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-22 23:05:33,648 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:05:33,648 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:33,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-22 23:05:33,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:33,805 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-22 23:05:33,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:34,615 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 74 proven. 54 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-22 23:05:34,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107461067] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:34,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:34,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18, 22] total 44 [2024-11-22 23:05:34,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788423525] [2024-11-22 23:05:34,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:34,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-22 23:05:34,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:34,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-22 23:05:34,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1724, Unknown=0, NotChecked=0, Total=1980 [2024-11-22 23:05:34,617 INFO L87 Difference]: Start difference. First operand 912 states and 1410 transitions. Second operand has 45 states, 44 states have (on average 2.727272727272727) internal successors, (120), 45 states have internal predecessors, (120), 11 states have call successors, (13), 1 states have call predecessors, (13), 15 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2024-11-22 23:05:35,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:35,036 INFO L93 Difference]: Finished difference Result 1322 states and 2183 transitions. [2024-11-22 23:05:35,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-22 23:05:35,037 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.727272727272727) internal successors, (120), 45 states have internal predecessors, (120), 11 states have call successors, (13), 1 states have call predecessors, (13), 15 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) Word has length 161 [2024-11-22 23:05:35,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:35,043 INFO L225 Difference]: With dead ends: 1322 [2024-11-22 23:05:35,043 INFO L226 Difference]: Without dead ends: 1320 [2024-11-22 23:05:35,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 293 SyntacticMatches, 13 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1881 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=531, Invalid=3375, Unknown=0, NotChecked=0, Total=3906 [2024-11-22 23:05:35,044 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 28 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:35,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 648 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:05:35,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-11-22 23:05:35,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 917. [2024-11-22 23:05:35,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 727 states have (on average 1.0563961485557083) internal successors, (768), 713 states have internal predecessors, (768), 94 states have call successors, (94), 20 states have call predecessors, (94), 92 states have return successors, (560), 183 states have call predecessors, (560), 93 states have call successors, (560) [2024-11-22 23:05:35,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1422 transitions. [2024-11-22 23:05:35,105 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1422 transitions. Word has length 161 [2024-11-22 23:05:35,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:35,105 INFO L471 AbstractCegarLoop]: Abstraction has 917 states and 1422 transitions. [2024-11-22 23:05:35,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.727272727272727) internal successors, (120), 45 states have internal predecessors, (120), 11 states have call successors, (13), 1 states have call predecessors, (13), 15 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2024-11-22 23:05:35,105 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1422 transitions. [2024-11-22 23:05:35,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-22 23:05:35,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:35,107 INFO L215 NwaCegarLoop]: trace histogram [15, 14, 14, 12, 11, 8, 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, 6, 3, 3, 1, 1, 1, 1, 1] [2024-11-22 23:05:35,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:35,307 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 [2024-11-22 23:05:35,308 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:35,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:35,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1691200261, now seen corresponding path program 3 times [2024-11-22 23:05:35,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:35,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808637775] [2024-11-22 23:05:35,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 23:05:35,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:35,318 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-22 23:05:35,318 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:35,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 253 proven. 5 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-22 23:05:35,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:35,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808637775] [2024-11-22 23:05:35,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808637775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:35,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073985605] [2024-11-22 23:05:35,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 23:05:35,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:35,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:35,381 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) [2024-11-22 23:05:35,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-22 23:05:35,438 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-22 23:05:35,438 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:35,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 23:05:35,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:35,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 345 proven. 6 refuted. 0 times theorem prover too weak. 831 trivial. 0 not checked. [2024-11-22 23:05:35,481 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:35,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2024-11-22 23:05:35,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073985605] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:35,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:35,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-22 23:05:35,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279309279] [2024-11-22 23:05:35,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:35,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 23:05:35,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:35,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 23:05:35,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-22 23:05:35,810 INFO L87 Difference]: Start difference. First operand 917 states and 1422 transitions. Second operand has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 15 states have internal predecessors, (85), 7 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (15), 5 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-22 23:05:35,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:35,949 INFO L93 Difference]: Finished difference Result 1688 states and 2732 transitions. [2024-11-22 23:05:35,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 23:05:35,950 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 15 states have internal predecessors, (85), 7 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (15), 5 states have call predecessors, (15), 7 states have call successors, (15) Word has length 267 [2024-11-22 23:05:35,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:35,955 INFO L225 Difference]: With dead ends: 1688 [2024-11-22 23:05:35,955 INFO L226 Difference]: Without dead ends: 850 [2024-11-22 23:05:35,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 526 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2024-11-22 23:05:35,958 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 81 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:35,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 176 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:05:35,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-22 23:05:35,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 823. [2024-11-22 23:05:35,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 654 states have (on average 1.0565749235474007) internal successors, (691), 639 states have internal predecessors, (691), 86 states have call successors, (86), 22 states have call predecessors, (86), 79 states have return successors, (410), 161 states have call predecessors, (410), 85 states have call successors, (410) [2024-11-22 23:05:35,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1187 transitions. [2024-11-22 23:05:35,993 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1187 transitions. Word has length 267 [2024-11-22 23:05:35,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:35,995 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 1187 transitions. [2024-11-22 23:05:35,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 15 states have internal predecessors, (85), 7 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (15), 5 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-22 23:05:35,995 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1187 transitions. [2024-11-22 23:05:35,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-22 23:05:35,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:35,996 INFO L215 NwaCegarLoop]: trace histogram [15, 14, 12, 10, 10, 10, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1] [2024-11-22 23:05:36,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:36,196 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 [2024-11-22 23:05:36,197 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:36,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:36,197 INFO L85 PathProgramCache]: Analyzing trace with hash -2034605897, now seen corresponding path program 4 times [2024-11-22 23:05:36,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:36,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526308924] [2024-11-22 23:05:36,197 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 23:05:36,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:36,207 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 23:05:36,207 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:36,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 149 proven. 158 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2024-11-22 23:05:36,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:36,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526308924] [2024-11-22 23:05:36,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526308924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:36,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816421709] [2024-11-22 23:05:36,311 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 23:05:36,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:36,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:36,313 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) [2024-11-22 23:05:36,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-22 23:05:36,386 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 23:05:36,386 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:36,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-22 23:05:36,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:36,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 232 proven. 166 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2024-11-22 23:05:36,457 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:36,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 232 proven. 168 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2024-11-22 23:05:36,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816421709] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:36,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:36,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 15] total 18 [2024-11-22 23:05:36,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756637670] [2024-11-22 23:05:36,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:36,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 23:05:36,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:36,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 23:05:36,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-22 23:05:36,800 INFO L87 Difference]: Start difference. First operand 823 states and 1187 transitions. Second operand has 18 states, 17 states have (on average 5.529411764705882) internal successors, (94), 15 states have internal predecessors, (94), 11 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-22 23:05:37,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:37,017 INFO L93 Difference]: Finished difference Result 1559 states and 2280 transitions. [2024-11-22 23:05:37,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 23:05:37,017 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.529411764705882) internal successors, (94), 15 states have internal predecessors, (94), 11 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 8 states have call successors, (14) Word has length 250 [2024-11-22 23:05:37,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:37,024 INFO L225 Difference]: With dead ends: 1559 [2024-11-22 23:05:37,024 INFO L226 Difference]: Without dead ends: 850 [2024-11-22 23:05:37,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 488 SyntacticMatches, 10 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2024-11-22 23:05:37,028 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 120 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:37,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 302 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:05:37,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-22 23:05:37,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 830. [2024-11-22 23:05:37,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 657 states have (on average 1.0547945205479452) internal successors, (693), 646 states have internal predecessors, (693), 87 states have call successors, (87), 22 states have call predecessors, (87), 82 states have return successors, (423), 161 states have call predecessors, (423), 86 states have call successors, (423) [2024-11-22 23:05:37,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1203 transitions. [2024-11-22 23:05:37,074 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1203 transitions. Word has length 250 [2024-11-22 23:05:37,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:37,075 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1203 transitions. [2024-11-22 23:05:37,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.529411764705882) internal successors, (94), 15 states have internal predecessors, (94), 11 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-22 23:05:37,075 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1203 transitions. [2024-11-22 23:05:37,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-22 23:05:37,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:37,076 INFO L215 NwaCegarLoop]: trace histogram [17, 16, 14, 12, 11, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 1, 1, 1, 1] [2024-11-22 23:05:37,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:37,280 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 [2024-11-22 23:05:37,280 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:37,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:37,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1540381382, now seen corresponding path program 5 times [2024-11-22 23:05:37,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:37,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757605531] [2024-11-22 23:05:37,281 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 23:05:37,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:37,293 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-22 23:05:37,293 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:37,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1391 backedges. 161 proven. 333 refuted. 0 times theorem prover too weak. 897 trivial. 0 not checked. [2024-11-22 23:05:37,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:37,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757605531] [2024-11-22 23:05:37,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757605531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:37,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394335138] [2024-11-22 23:05:37,398 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 23:05:37,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:37,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:37,400 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) [2024-11-22 23:05:37,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-22 23:05:37,471 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-22 23:05:37,471 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:37,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 23:05:37,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:37,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1391 backedges. 805 proven. 39 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2024-11-22 23:05:37,555 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:38,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1391 backedges. 161 proven. 333 refuted. 0 times theorem prover too weak. 897 trivial. 0 not checked. [2024-11-22 23:05:38,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394335138] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:38,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:38,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 20 [2024-11-22 23:05:38,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367418610] [2024-11-22 23:05:38,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:38,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-22 23:05:38,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:38,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-22 23:05:38,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-22 23:05:38,109 INFO L87 Difference]: Start difference. First operand 830 states and 1203 transitions. Second operand has 20 states, 20 states have (on average 6.3) internal successors, (126), 20 states have internal predecessors, (126), 10 states have call successors, (22), 2 states have call predecessors, (22), 6 states have return successors, (24), 8 states have call predecessors, (24), 10 states have call successors, (24) [2024-11-22 23:05:38,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:38,380 INFO L93 Difference]: Finished difference Result 1800 states and 2960 transitions. [2024-11-22 23:05:38,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 23:05:38,381 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.3) internal successors, (126), 20 states have internal predecessors, (126), 10 states have call successors, (22), 2 states have call predecessors, (22), 6 states have return successors, (24), 8 states have call predecessors, (24), 10 states have call successors, (24) Word has length 287 [2024-11-22 23:05:38,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:38,387 INFO L225 Difference]: With dead ends: 1800 [2024-11-22 23:05:38,387 INFO L226 Difference]: Without dead ends: 996 [2024-11-22 23:05:38,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 564 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=699, Unknown=0, NotChecked=0, Total=870 [2024-11-22 23:05:38,393 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 136 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:38,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 262 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:05:38,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2024-11-22 23:05:38,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 935. [2024-11-22 23:05:38,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 740 states have (on average 1.0513513513513513) internal successors, (778), 729 states have internal predecessors, (778), 99 states have call successors, (99), 27 states have call predecessors, (99), 92 states have return successors, (502), 178 states have call predecessors, (502), 98 states have call successors, (502) [2024-11-22 23:05:38,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1379 transitions. [2024-11-22 23:05:38,477 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1379 transitions. Word has length 287 [2024-11-22 23:05:38,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:38,477 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1379 transitions. [2024-11-22 23:05:38,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.3) internal successors, (126), 20 states have internal predecessors, (126), 10 states have call successors, (22), 2 states have call predecessors, (22), 6 states have return successors, (24), 8 states have call predecessors, (24), 10 states have call successors, (24) [2024-11-22 23:05:38,478 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1379 transitions. [2024-11-22 23:05:38,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-22 23:05:38,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:38,479 INFO L215 NwaCegarLoop]: trace histogram [15, 14, 14, 12, 11, 10, 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] [2024-11-22 23:05:38,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:38,679 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 [2024-11-22 23:05:38,679 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:38,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:38,680 INFO L85 PathProgramCache]: Analyzing trace with hash -200869202, now seen corresponding path program 2 times [2024-11-22 23:05:38,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:38,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541903663] [2024-11-22 23:05:38,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:05:38,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:38,692 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:05:38,692 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:38,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 183 proven. 3 refuted. 0 times theorem prover too weak. 1019 trivial. 0 not checked. [2024-11-22 23:05:38,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:38,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541903663] [2024-11-22 23:05:38,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541903663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:38,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752297128] [2024-11-22 23:05:38,747 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:05:38,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:38,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:38,749 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) [2024-11-22 23:05:38,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-22 23:05:38,840 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:05:38,840 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:38,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-22 23:05:38,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:38,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 244 proven. 184 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2024-11-22 23:05:38,975 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:39,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 244 proven. 185 refuted. 0 times theorem prover too weak. 776 trivial. 0 not checked. [2024-11-22 23:05:39,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752297128] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:39,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:39,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 14, 15] total 19 [2024-11-22 23:05:39,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534605890] [2024-11-22 23:05:39,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:39,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 23:05:39,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:39,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 23:05:39,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-22 23:05:39,348 INFO L87 Difference]: Start difference. First operand 935 states and 1379 transitions. Second operand has 19 states, 18 states have (on average 5.888888888888889) internal successors, (106), 16 states have internal predecessors, (106), 12 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (17), 7 states have call predecessors, (17), 9 states have call successors, (17) [2024-11-22 23:05:39,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:39,534 INFO L93 Difference]: Finished difference Result 1380 states and 2036 transitions. [2024-11-22 23:05:39,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-22 23:05:39,534 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.888888888888889) internal successors, (106), 16 states have internal predecessors, (106), 12 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (17), 7 states have call predecessors, (17), 9 states have call successors, (17) Word has length 270 [2024-11-22 23:05:39,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:39,537 INFO L225 Difference]: With dead ends: 1380 [2024-11-22 23:05:39,537 INFO L226 Difference]: Without dead ends: 536 [2024-11-22 23:05:39,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 522 SyntacticMatches, 10 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2024-11-22 23:05:39,540 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 101 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:39,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 333 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:05:39,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-22 23:05:39,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 531. [2024-11-22 23:05:39,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 420 states have (on average 1.0380952380952382) internal successors, (436), 420 states have internal predecessors, (436), 62 states have call successors, (62), 27 states have call predecessors, (62), 47 states have return successors, (142), 83 states have call predecessors, (142), 61 states have call successors, (142) [2024-11-22 23:05:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 640 transitions. [2024-11-22 23:05:39,562 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 640 transitions. Word has length 270 [2024-11-22 23:05:39,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:39,562 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 640 transitions. [2024-11-22 23:05:39,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.888888888888889) internal successors, (106), 16 states have internal predecessors, (106), 12 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (17), 7 states have call predecessors, (17), 9 states have call successors, (17) [2024-11-22 23:05:39,562 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 640 transitions. [2024-11-22 23:05:39,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-22 23:05:39,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:39,563 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] [2024-11-22 23:05:39,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:39,767 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 [2024-11-22 23:05:39,768 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:39,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:39,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1942864476, now seen corresponding path program 3 times [2024-11-22 23:05:39,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:39,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835737401] [2024-11-22 23:05:39,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 23:05:39,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:39,799 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-22 23:05:39,799 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:40,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 149 proven. 248 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2024-11-22 23:05:40,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:40,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835737401] [2024-11-22 23:05:40,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835737401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:40,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386793567] [2024-11-22 23:05:40,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 23:05:40,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:40,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:40,683 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) [2024-11-22 23:05:40,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-22 23:05:40,780 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-22 23:05:40,780 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:40,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-22 23:05:40,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:41,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 148 proven. 181 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2024-11-22 23:05:41,112 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:43,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 218 proven. 160 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2024-11-22 23:05:43,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386793567] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:43,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:43,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 24, 29] total 56 [2024-11-22 23:05:43,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980839527] [2024-11-22 23:05:43,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:43,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-22 23:05:43,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:43,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-22 23:05:43,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=2797, Unknown=0, NotChecked=0, Total=3192 [2024-11-22 23:05:43,236 INFO L87 Difference]: Start difference. First operand 531 states and 640 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) [2024-11-22 23:05:43,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:43,519 INFO L93 Difference]: Finished difference Result 639 states and 766 transitions. [2024-11-22 23:05:43,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-22 23:05:43,520 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 [2024-11-22 23:05:43,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:43,522 INFO L225 Difference]: With dead ends: 639 [2024-11-22 23:05:43,522 INFO L226 Difference]: Without dead ends: 637 [2024-11-22 23:05:43,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 471 SyntacticMatches, 27 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3186 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=564, Invalid=3858, Unknown=0, NotChecked=0, Total=4422 [2024-11-22 23:05:43,524 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 24 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:43,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 594 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:05:43,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-11-22 23:05:43,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 524. [2024-11-22 23:05:43,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 414 states have (on average 1.0289855072463767) internal successors, (426), 415 states have internal predecessors, (426), 61 states have call successors, (61), 27 states have call predecessors, (61), 47 states have return successors, (139), 81 states have call predecessors, (139), 60 states have call successors, (139) [2024-11-22 23:05:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 626 transitions. [2024-11-22 23:05:43,563 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 626 transitions. Word has length 253 [2024-11-22 23:05:43,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:43,563 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 626 transitions. [2024-11-22 23:05:43,563 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) [2024-11-22 23:05:43,563 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 626 transitions. [2024-11-22 23:05:43,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-22 23:05:43,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:43,565 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] [2024-11-22 23:05:43,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:43,769 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 [2024-11-22 23:05:43,770 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:43,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:43,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1965406224, now seen corresponding path program 3 times [2024-11-22 23:05:43,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:43,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717647553] [2024-11-22 23:05:43,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 23:05:43,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:43,786 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-22 23:05:43,786 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:43,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 491 proven. 52 refuted. 0 times theorem prover too weak. 1748 trivial. 0 not checked. [2024-11-22 23:05:43,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:43,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717647553] [2024-11-22 23:05:43,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717647553] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:43,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576339963] [2024-11-22 23:05:43,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 23:05:43,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:43,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:43,874 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) [2024-11-22 23:05:43,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-22 23:05:43,967 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-22 23:05:43,968 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:43,968 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 23:05:43,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 739 proven. 7 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2024-11-22 23:05:44,023 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:44,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 429 proven. 34 refuted. 0 times theorem prover too weak. 1828 trivial. 0 not checked. [2024-11-22 23:05:44,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576339963] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:44,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:44,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 17 [2024-11-22 23:05:44,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400101686] [2024-11-22 23:05:44,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:44,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-22 23:05:44,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:44,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-22 23:05:44,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-22 23:05:44,484 INFO L87 Difference]: Start difference. First operand 524 states and 626 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) [2024-11-22 23:05:44,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:44,630 INFO L93 Difference]: Finished difference Result 869 states and 1045 transitions. [2024-11-22 23:05:44,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 23:05:44,631 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 [2024-11-22 23:05:44,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:44,633 INFO L225 Difference]: With dead ends: 869 [2024-11-22 23:05:44,633 INFO L226 Difference]: Without dead ends: 496 [2024-11-22 23:05:44,634 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 [2024-11-22 23:05:44,635 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 68 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:44,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 247 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:05:44,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-22 23:05:44,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 490. [2024-11-22 23:05:44,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 388 states have (on average 1.0309278350515463) internal successors, (400), 388 states have internal predecessors, (400), 57 states have call successors, (57), 28 states have call predecessors, (57), 43 states have return successors, (118), 73 states have call predecessors, (118), 56 states have call successors, (118) [2024-11-22 23:05:44,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 575 transitions. [2024-11-22 23:05:44,655 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 575 transitions. Word has length 365 [2024-11-22 23:05:44,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:44,656 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 575 transitions. [2024-11-22 23:05:44,656 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) [2024-11-22 23:05:44,656 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 575 transitions. [2024-11-22 23:05:44,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-22 23:05:44,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:44,657 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] [2024-11-22 23:05:44,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:44,857 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 [2024-11-22 23:05:44,858 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:44,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:44,858 INFO L85 PathProgramCache]: Analyzing trace with hash 2028835144, now seen corresponding path program 4 times [2024-11-22 23:05:44,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:44,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325375512] [2024-11-22 23:05:44,858 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 23:05:44,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:44,873 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 23:05:44,873 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 333 proven. 188 refuted. 0 times theorem prover too weak. 1514 trivial. 0 not checked. [2024-11-22 23:05:44,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:44,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325375512] [2024-11-22 23:05:44,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325375512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:44,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159385113] [2024-11-22 23:05:44,992 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 23:05:44,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:44,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:44,994 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) [2024-11-22 23:05:44,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-22 23:05:45,109 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 23:05:45,109 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:45,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-22 23:05:45,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:45,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 426 proven. 203 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2024-11-22 23:05:45,188 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:45,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 426 proven. 210 refuted. 0 times theorem prover too weak. 1399 trivial. 0 not checked. [2024-11-22 23:05:45,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159385113] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:45,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:45,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 15] total 18 [2024-11-22 23:05:45,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634058868] [2024-11-22 23:05:45,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:45,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 23:05:45,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:45,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 23:05:45,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-11-22 23:05:45,738 INFO L87 Difference]: Start difference. First operand 490 states and 575 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) [2024-11-22 23:05:45,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:45,951 INFO L93 Difference]: Finished difference Result 850 states and 1005 transitions. [2024-11-22 23:05:45,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 23:05:45,951 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 [2024-11-22 23:05:45,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:45,955 INFO L225 Difference]: With dead ends: 850 [2024-11-22 23:05:45,955 INFO L226 Difference]: Without dead ends: 472 [2024-11-22 23:05:45,956 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 [2024-11-22 23:05:45,957 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 67 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:45,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 330 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:05:45,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-22 23:05:45,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 460. [2024-11-22 23:05:45,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 364 states have (on average 1.032967032967033) internal successors, (376), 365 states have internal predecessors, (376), 54 states have call successors, (54), 28 states have call predecessors, (54), 40 states have return successors, (102), 66 states have call predecessors, (102), 53 states have call successors, (102) [2024-11-22 23:05:45,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 532 transitions. [2024-11-22 23:05:45,978 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 532 transitions. Word has length 346 [2024-11-22 23:05:45,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:45,978 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 532 transitions. [2024-11-22 23:05:45,979 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) [2024-11-22 23:05:45,979 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 532 transitions. [2024-11-22 23:05:45,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-22 23:05:45,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:45,980 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] [2024-11-22 23:05:45,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-22 23:05:46,184 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 [2024-11-22 23:05:46,185 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:46,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:46,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1837041369, now seen corresponding path program 5 times [2024-11-22 23:05:46,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:46,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682155459] [2024-11-22 23:05:46,186 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 23:05:46,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:46,208 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-22 23:05:46,208 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:46,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2541 backedges. 530 proven. 574 refuted. 0 times theorem prover too weak. 1437 trivial. 0 not checked. [2024-11-22 23:05:46,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:46,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682155459] [2024-11-22 23:05:46,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682155459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:46,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417961159] [2024-11-22 23:05:46,554 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 23:05:46,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:46,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:46,557 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) [2024-11-22 23:05:46,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-22 23:05:46,682 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-22 23:05:46,683 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:46,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-22 23:05:46,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:46,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2541 backedges. 503 proven. 604 refuted. 0 times theorem prover too weak. 1434 trivial. 0 not checked. [2024-11-22 23:05:46,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:47,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2541 backedges. 507 proven. 620 refuted. 0 times theorem prover too weak. 1414 trivial. 0 not checked. [2024-11-22 23:05:47,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417961159] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:47,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:47,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 21] total 29 [2024-11-22 23:05:47,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129348330] [2024-11-22 23:05:47,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:47,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-22 23:05:47,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:47,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-22 23:05:47,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=701, Unknown=0, NotChecked=0, Total=812 [2024-11-22 23:05:47,798 INFO L87 Difference]: Start difference. First operand 460 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) [2024-11-22 23:05:48,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:48,281 INFO L93 Difference]: Finished difference Result 980 states and 1201 transitions. [2024-11-22 23:05:48,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-22 23:05:48,281 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 [2024-11-22 23:05:48,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:48,284 INFO L225 Difference]: With dead ends: 980 [2024-11-22 23:05:48,284 INFO L226 Difference]: Without dead ends: 582 [2024-11-22 23:05:48,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 755 SyntacticMatches, 10 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=398, Invalid=2052, Unknown=0, NotChecked=0, Total=2450 [2024-11-22 23:05:48,286 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 217 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:48,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 486 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 23:05:48,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-22 23:05:48,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 502. [2024-11-22 23:05:48,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 400 states have (on average 1.035) internal successors, (414), 397 states have internal predecessors, (414), 61 states have call successors, (61), 37 states have call predecessors, (61), 39 states have return successors, (102), 67 states have call predecessors, (102), 60 states have call successors, (102) [2024-11-22 23:05:48,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 577 transitions. [2024-11-22 23:05:48,308 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 577 transitions. Word has length 385 [2024-11-22 23:05:48,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:48,309 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 577 transitions. [2024-11-22 23:05:48,309 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) [2024-11-22 23:05:48,309 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 577 transitions. [2024-11-22 23:05:48,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-22 23:05:48,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:48,311 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] [2024-11-22 23:05:48,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:48,511 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 [2024-11-22 23:05:48,511 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:48,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:48,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1640309168, now seen corresponding path program 6 times [2024-11-22 23:05:48,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:48,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892630994] [2024-11-22 23:05:48,512 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 23:05:48,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:48,531 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-11-22 23:05:48,531 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:48,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2525 backedges. 580 proven. 35 refuted. 0 times theorem prover too weak. 1910 trivial. 0 not checked. [2024-11-22 23:05:48,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:48,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892630994] [2024-11-22 23:05:48,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892630994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:48,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051479613] [2024-11-22 23:05:48,688 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 23:05:48,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:48,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:48,690 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) [2024-11-22 23:05:48,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-22 23:05:48,824 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-11-22 23:05:48,825 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:48,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 23:05:48,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:48,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2525 backedges. 632 proven. 41 refuted. 0 times theorem prover too weak. 1852 trivial. 0 not checked. [2024-11-22 23:05:48,884 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:49,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2525 backedges. 632 proven. 42 refuted. 0 times theorem prover too weak. 1851 trivial. 0 not checked. [2024-11-22 23:05:49,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051479613] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:49,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:49,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 20 [2024-11-22 23:05:49,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933834824] [2024-11-22 23:05:49,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:49,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-22 23:05:49,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:49,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-22 23:05:49,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-11-22 23:05:49,459 INFO L87 Difference]: Start difference. First operand 502 states and 577 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) [2024-11-22 23:05:49,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:49,688 INFO L93 Difference]: Finished difference Result 848 states and 981 transitions. [2024-11-22 23:05:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 23:05:49,689 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 [2024-11-22 23:05:49,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:49,691 INFO L225 Difference]: With dead ends: 848 [2024-11-22 23:05:49,691 INFO L226 Difference]: Without dead ends: 475 [2024-11-22 23:05:49,694 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 [2024-11-22 23:05:49,694 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 71 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:49,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 290 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:05:49,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-22 23:05:49,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 466. [2024-11-22 23:05:49,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 371 states have (on average 1.0323450134770888) internal successors, (383), 369 states have internal predecessors, (383), 57 states have call successors, (57), 36 states have call predecessors, (57), 36 states have return successors, (85), 60 states have call predecessors, (85), 56 states have call successors, (85) [2024-11-22 23:05:49,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 525 transitions. [2024-11-22 23:05:49,715 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 525 transitions. Word has length 384 [2024-11-22 23:05:49,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:49,715 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 525 transitions. [2024-11-22 23:05:49,715 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) [2024-11-22 23:05:49,715 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 525 transitions. [2024-11-22 23:05:49,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-22 23:05:49,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:49,717 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] [2024-11-22 23:05:49,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:49,918 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 [2024-11-22 23:05:49,918 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:49,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:49,919 INFO L85 PathProgramCache]: Analyzing trace with hash 322047479, now seen corresponding path program 7 times [2024-11-22 23:05:49,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:49,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360371445] [2024-11-22 23:05:49,919 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 23:05:49,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:51,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 440 proven. 701 refuted. 0 times theorem prover too weak. 1661 trivial. 0 not checked. [2024-11-22 23:05:51,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:51,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360371445] [2024-11-22 23:05:51,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360371445] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:51,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868223655] [2024-11-22 23:05:51,513 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 23:05:51,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:51,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:51,514 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) [2024-11-22 23:05:51,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-22 23:05:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:51,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-11-22 23:05:51,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:51,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 432 proven. 525 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked. [2024-11-22 23:05:51,999 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:56,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 585 proven. 468 refuted. 0 times theorem prover too weak. 1749 trivial. 0 not checked. [2024-11-22 23:05:56,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868223655] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:56,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:56,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 30, 37] total 68 [2024-11-22 23:05:56,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078312353] [2024-11-22 23:05:56,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:56,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-11-22 23:05:56,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:56,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-11-22 23:05:56,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=559, Invalid=4133, Unknown=0, NotChecked=0, Total=4692 [2024-11-22 23:05:56,912 INFO L87 Difference]: Start difference. First operand 466 states and 525 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) [2024-11-22 23:05:57,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:57,220 INFO L93 Difference]: Finished difference Result 544 states and 614 transitions. [2024-11-22 23:05:57,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-22 23:05:57,221 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 [2024-11-22 23:05:57,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:57,223 INFO L225 Difference]: With dead ends: 544 [2024-11-22 23:05:57,223 INFO L226 Difference]: Without dead ends: 531 [2024-11-22 23:05:57,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 898 GetRequests, 769 SyntacticMatches, 51 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5840 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=783, Invalid=5537, Unknown=0, NotChecked=0, Total=6320 [2024-11-22 23:05:57,225 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 28 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:57,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 859 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:05:57,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-22 23:05:57,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 474. [2024-11-22 23:05:57,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 378 states have (on average 1.029100529100529) internal successors, (389), 375 states have internal predecessors, (389), 58 states have call successors, (58), 36 states have call predecessors, (58), 37 states have return successors, (83), 62 states have call predecessors, (83), 57 states have call successors, (83) [2024-11-22 23:05:57,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 530 transitions. [2024-11-22 23:05:57,245 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 530 transitions. Word has length 404 [2024-11-22 23:05:57,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:57,245 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 530 transitions. [2024-11-22 23:05:57,246 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) [2024-11-22 23:05:57,246 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 530 transitions. [2024-11-22 23:05:57,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2024-11-22 23:05:57,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:57,249 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 31, 30, 29, 26, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 8, 7, 5, 1, 1, 1, 1] [2024-11-22 23:05:57,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-22 23:05:57,449 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 [2024-11-22 23:05:57,449 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:57,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:57,450 INFO L85 PathProgramCache]: Analyzing trace with hash -376752984, now seen corresponding path program 4 times [2024-11-22 23:05:57,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:57,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759281268] [2024-11-22 23:05:57,450 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 23:05:57,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:57,483 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 23:05:57,484 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:57,624 INFO L134 CoverageAnalysis]: Checked inductivity of 7631 backedges. 714 proven. 212 refuted. 0 times theorem prover too weak. 6705 trivial. 0 not checked. [2024-11-22 23:05:57,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:57,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759281268] [2024-11-22 23:05:57,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759281268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:57,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869519898] [2024-11-22 23:05:57,625 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 23:05:57,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:57,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:57,627 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) [2024-11-22 23:05:57,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-22 23:05:57,849 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 23:05:57,849 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:57,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-22 23:05:57,857 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:57,989 INFO L134 CoverageAnalysis]: Checked inductivity of 7631 backedges. 1072 proven. 352 refuted. 0 times theorem prover too weak. 6207 trivial. 0 not checked. [2024-11-22 23:05:57,990 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:58,939 INFO L134 CoverageAnalysis]: Checked inductivity of 7631 backedges. 1072 proven. 368 refuted. 0 times theorem prover too weak. 6191 trivial. 0 not checked. [2024-11-22 23:05:58,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869519898] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:58,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:58,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 15] total 25 [2024-11-22 23:05:58,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683804303] [2024-11-22 23:05:58,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:58,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 23:05:58,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:58,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 23:05:58,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2024-11-22 23:05:58,940 INFO L87 Difference]: Start difference. First operand 474 states and 530 transitions. Second operand has 25 states, 23 states have (on average 6.173913043478261) internal successors, (142), 23 states have internal predecessors, (142), 15 states have call successors, (25), 3 states have call predecessors, (25), 9 states have return successors, (25), 15 states have call predecessors, (25), 13 states have call successors, (25) [2024-11-22 23:05:59,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:59,417 INFO L93 Difference]: Finished difference Result 575 states and 652 transitions. [2024-11-22 23:05:59,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-22 23:05:59,417 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 6.173913043478261) internal successors, (142), 23 states have internal predecessors, (142), 15 states have call successors, (25), 3 states have call predecessors, (25), 9 states have return successors, (25), 15 states have call predecessors, (25), 13 states have call successors, (25) Word has length 654 [2024-11-22 23:05:59,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:59,419 INFO L225 Difference]: With dead ends: 575 [2024-11-22 23:05:59,419 INFO L226 Difference]: Without dead ends: 515 [2024-11-22 23:05:59,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1339 GetRequests, 1287 SyntacticMatches, 8 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=1773, Unknown=0, NotChecked=0, Total=2070 [2024-11-22 23:05:59,420 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 199 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:59,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 603 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 23:05:59,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-11-22 23:05:59,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 477. [2024-11-22 23:05:59,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 380 states have (on average 1.0236842105263158) internal successors, (389), 378 states have internal predecessors, (389), 58 states have call successors, (58), 35 states have call predecessors, (58), 38 states have return successors, (84), 63 states have call predecessors, (84), 57 states have call successors, (84) [2024-11-22 23:05:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 531 transitions. [2024-11-22 23:05:59,442 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 531 transitions. Word has length 654 [2024-11-22 23:05:59,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:59,442 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 531 transitions. [2024-11-22 23:05:59,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 6.173913043478261) internal successors, (142), 23 states have internal predecessors, (142), 15 states have call successors, (25), 3 states have call predecessors, (25), 9 states have return successors, (25), 15 states have call predecessors, (25), 13 states have call successors, (25) [2024-11-22 23:05:59,443 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 531 transitions. [2024-11-22 23:05:59,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2024-11-22 23:05:59,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:59,446 INFO L215 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 26, 26, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 10, 10, 7, 6, 1, 1, 1, 1] [2024-11-22 23:05:59,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-22 23:05:59,646 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 [2024-11-22 23:05:59,646 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:05:59,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:59,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1588780478, now seen corresponding path program 5 times [2024-11-22 23:05:59,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:59,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198143597] [2024-11-22 23:05:59,647 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 23:05:59,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:59,699 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2024-11-22 23:05:59,699 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:00,147 INFO L134 CoverageAnalysis]: Checked inductivity of 7082 backedges. 1506 proven. 281 refuted. 0 times theorem prover too weak. 5295 trivial. 0 not checked. [2024-11-22 23:06:00,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:00,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198143597] [2024-11-22 23:06:00,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198143597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:00,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680696539] [2024-11-22 23:06:00,147 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 23:06:00,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:00,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:00,149 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) [2024-11-22 23:06:00,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-22 23:06:00,396 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2024-11-22 23:06:00,396 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:00,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-22 23:06:00,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:00,502 INFO L134 CoverageAnalysis]: Checked inductivity of 7082 backedges. 1581 proven. 298 refuted. 0 times theorem prover too weak. 5203 trivial. 0 not checked. [2024-11-22 23:06:00,502 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:01,761 INFO L134 CoverageAnalysis]: Checked inductivity of 7082 backedges. 1581 proven. 311 refuted. 0 times theorem prover too weak. 5190 trivial. 0 not checked. [2024-11-22 23:06:01,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680696539] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:01,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:01,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 19] total 30 [2024-11-22 23:06:01,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712923753] [2024-11-22 23:06:01,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:01,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-22 23:06:01,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:01,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-22 23:06:01,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=745, Unknown=0, NotChecked=0, Total=870 [2024-11-22 23:06:01,763 INFO L87 Difference]: Start difference. First operand 477 states and 531 transitions. Second operand has 30 states, 30 states have (on average 5.6) internal successors, (168), 30 states have internal predecessors, (168), 21 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (31), 14 states have call predecessors, (31), 21 states have call successors, (31) [2024-11-22 23:06:02,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:02,262 INFO L93 Difference]: Finished difference Result 515 states and 570 transitions. [2024-11-22 23:06:02,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-22 23:06:02,263 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.6) internal successors, (168), 30 states have internal predecessors, (168), 21 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (31), 14 states have call predecessors, (31), 21 states have call successors, (31) Word has length 633 [2024-11-22 23:06:02,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:02,265 INFO L225 Difference]: With dead ends: 515 [2024-11-22 23:06:02,265 INFO L226 Difference]: Without dead ends: 475 [2024-11-22 23:06:02,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1304 GetRequests, 1248 SyntacticMatches, 10 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1887, Unknown=0, NotChecked=0, Total=2256 [2024-11-22 23:06:02,266 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 110 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:02,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 626 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 23:06:02,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-22 23:06:02,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 463. [2024-11-22 23:06:02,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 369 states have (on average 1.024390243902439) internal successors, (378), 367 states have internal predecessors, (378), 57 states have call successors, (57), 35 states have call predecessors, (57), 36 states have return successors, (78), 60 states have call predecessors, (78), 56 states have call successors, (78) [2024-11-22 23:06:02,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 513 transitions. [2024-11-22 23:06:02,286 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 513 transitions. Word has length 633 [2024-11-22 23:06:02,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:02,286 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 513 transitions. [2024-11-22 23:06:02,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.6) internal successors, (168), 30 states have internal predecessors, (168), 21 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (31), 14 states have call predecessors, (31), 21 states have call successors, (31) [2024-11-22 23:06:02,286 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 513 transitions. [2024-11-22 23:06:02,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2024-11-22 23:06:02,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:02,289 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 33, 32, 28, 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, 12, 9, 8, 6, 1, 1, 1, 1] [2024-11-22 23:06:02,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-22 23:06:02,493 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 [2024-11-22 23:06:02,494 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:06:02,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:02,494 INFO L85 PathProgramCache]: Analyzing trace with hash 2065929683, now seen corresponding path program 6 times [2024-11-22 23:06:02,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:02,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113211603] [2024-11-22 23:06:02,494 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 23:06:02,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:02,529 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2024-11-22 23:06:02,529 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:02,700 INFO L134 CoverageAnalysis]: Checked inductivity of 8027 backedges. 989 proven. 156 refuted. 0 times theorem prover too weak. 6882 trivial. 0 not checked. [2024-11-22 23:06:02,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:02,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113211603] [2024-11-22 23:06:02,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113211603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:02,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668786968] [2024-11-22 23:06:02,700 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 23:06:02,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:02,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:02,702 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) [2024-11-22 23:06:02,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-22 23:06:02,954 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2024-11-22 23:06:02,954 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:02,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 23:06:02,961 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:03,022 INFO L134 CoverageAnalysis]: Checked inductivity of 8027 backedges. 2847 proven. 23 refuted. 0 times theorem prover too weak. 5157 trivial. 0 not checked. [2024-11-22 23:06:03,022 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:03,775 INFO L134 CoverageAnalysis]: Checked inductivity of 8027 backedges. 1096 proven. 174 refuted. 0 times theorem prover too weak. 6757 trivial. 0 not checked. [2024-11-22 23:06:03,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668786968] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:03,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:03,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 19 [2024-11-22 23:06:03,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937200933] [2024-11-22 23:06:03,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:03,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 23:06:03,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:03,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 23:06:03,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-22 23:06:03,777 INFO L87 Difference]: Start difference. First operand 463 states and 513 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) [2024-11-22 23:06:03,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:03,988 INFO L93 Difference]: Finished difference Result 790 states and 881 transitions. [2024-11-22 23:06:03,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 23:06:03,989 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 672 [2024-11-22 23:06:03,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:03,991 INFO L225 Difference]: With dead ends: 790 [2024-11-22 23:06:03,992 INFO L226 Difference]: Without dead ends: 458 [2024-11-22 23:06:03,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1363 GetRequests, 1332 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2024-11-22 23:06:03,993 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 129 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:03,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 214 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:06:03,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-11-22 23:06:04,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 445. [2024-11-22 23:06:04,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 355 states have (on average 1.0253521126760563) internal successors, (364), 353 states have internal predecessors, (364), 55 states have call successors, (55), 35 states have call predecessors, (55), 34 states have return successors, (68), 56 states have call predecessors, (68), 54 states have call successors, (68) [2024-11-22 23:06:04,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 487 transitions. [2024-11-22 23:06:04,025 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 487 transitions. Word has length 672 [2024-11-22 23:06:04,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:04,026 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 487 transitions. [2024-11-22 23:06:04,026 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) [2024-11-22 23:06:04,026 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 487 transitions. [2024-11-22 23:06:04,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2024-11-22 23:06:04,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:04,031 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] [2024-11-22 23:06:04,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-22 23:06:04,232 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 [2024-11-22 23:06:04,232 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-22 23:06:04,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:04,232 INFO L85 PathProgramCache]: Analyzing trace with hash -330128645, now seen corresponding path program 7 times [2024-11-22 23:06:04,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:04,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300721116] [2024-11-22 23:06:04,233 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 23:06:04,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:06:08,403 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1257 proven. 1900 refuted. 0 times theorem prover too weak. 4397 trivial. 0 not checked. [2024-11-22 23:06:08,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:08,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300721116] [2024-11-22 23:06:08,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300721116] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:08,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792664434] [2024-11-22 23:06:08,404 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 23:06:08,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:08,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:08,405 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) [2024-11-22 23:06:08,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-22 23:06:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:06:08,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 133 conjuncts are in the unsatisfiable core [2024-11-22 23:06:08,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:09,127 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1237 proven. 1440 refuted. 0 times theorem prover too weak. 4877 trivial. 0 not checked. [2024-11-22 23:06:09,127 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:21,780 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1543 proven. 1316 refuted. 0 times theorem prover too weak. 4695 trivial. 0 not checked. [2024-11-22 23:06:21,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792664434] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:21,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:21,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 36, 46] total 79 [2024-11-22 23:06:21,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123610203] [2024-11-22 23:06:21,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:21,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2024-11-22 23:06:21,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:21,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2024-11-22 23:06:21,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=738, Invalid=5582, Unknown=0, NotChecked=0, Total=6320 [2024-11-22 23:06:21,784 INFO L87 Difference]: Start difference. First operand 445 states and 487 transitions. Second operand has 80 states, 79 states have (on average 2.6202531645569622) internal successors, (207), 80 states have internal predecessors, (207), 20 states have call successors, (22), 1 states have call predecessors, (22), 24 states have return successors, (54), 54 states have call predecessors, (54), 20 states have call successors, (54) [2024-11-22 23:06:22,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:22,025 INFO L93 Difference]: Finished difference Result 465 states and 508 transitions. [2024-11-22 23:06:22,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-22 23:06:22,025 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 79 states have (on average 2.6202531645569622) internal successors, (207), 80 states have internal predecessors, (207), 20 states have call successors, (22), 1 states have call predecessors, (22), 24 states have return successors, (54), 54 states have call predecessors, (54), 20 states have call successors, (54) Word has length 653 [2024-11-22 23:06:22,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:22,027 INFO L225 Difference]: With dead ends: 465 [2024-11-22 23:06:22,027 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 23:06:22,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1443 GetRequests, 1267 SyntacticMatches, 92 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9824 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=871, Invalid=6439, Unknown=0, NotChecked=0, Total=7310 [2024-11-22 23:06:22,029 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 12 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:22,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 643 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:06:22,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 23:06:22,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 23:06:22,029 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) [2024-11-22 23:06:22,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 23:06:22,029 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 653 [2024-11-22 23:06:22,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:22,030 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 23:06:22,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 79 states have (on average 2.6202531645569622) internal successors, (207), 80 states have internal predecessors, (207), 20 states have call successors, (22), 1 states have call predecessors, (22), 24 states have return successors, (54), 54 states have call predecessors, (54), 20 states have call successors, (54) [2024-11-22 23:06:22,030 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 23:06:22,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 23:06:22,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2024-11-22 23:06:22,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2024-11-22 23:06:22,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2024-11-22 23:06:22,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2024-11-22 23:06:22,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2024-11-22 23:06:22,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2024-11-22 23:06:22,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2024-11-22 23:06:22,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2024-11-22 23:06:22,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2024-11-22 23:06:22,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2024-11-22 23:06:22,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2024-11-22 23:06:22,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2024-11-22 23:06:22,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-22 23:06:22,234 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 [2024-11-22 23:06:22,236 INFO L407 BasicCegarLoop]: Path program histogram: [7, 7, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:06:22,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.