./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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-dev-84cfde4 [2024-10-11 21:14:12,087 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 21:14:12,160 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 21:14:12,166 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 21:14:12,166 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 21:14:12,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 21:14:12,192 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 21:14:12,192 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 21:14:12,193 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 21:14:12,194 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 21:14:12,195 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 21:14:12,195 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 21:14:12,196 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 21:14:12,196 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 21:14:12,196 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 21:14:12,197 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 21:14:12,197 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 21:14:12,197 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 21:14:12,197 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 21:14:12,198 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 21:14:12,198 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 21:14:12,199 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 21:14:12,199 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 21:14:12,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 21:14:12,199 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 21:14:12,200 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 21:14:12,200 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 21:14:12,200 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 21:14:12,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 21:14:12,200 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 21:14:12,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 21:14:12,201 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 21:14:12,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 21:14:12,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 21:14:12,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 21:14:12,202 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 21:14:12,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 21:14:12,202 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 21:14:12,202 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 21:14:12,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 21:14:12,202 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 21:14:12,203 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 21:14:12,203 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 21:14:12,203 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 21:14:12,203 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 [2024-10-11 21:14:12,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 21:14:12,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 21:14:12,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 21:14:12,460 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 21:14:12,461 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 21:14:12,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-10-11 21:14:14,022 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 21:14:14,265 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 21:14:14,266 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-10-11 21:14:14,274 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1d9161ac3/99ab5100290e4abfa519c3f8432656a4/FLAGe0bd56490 [2024-10-11 21:14:14,635 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1d9161ac3/99ab5100290e4abfa519c3f8432656a4 [2024-10-11 21:14:14,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 21:14:14,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 21:14:14,648 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 21:14:14,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 21:14:14,656 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 21:14:14,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 09:14:14" (1/1) ... [2024-10-11 21:14:14,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c07dbd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14, skipping insertion in model container [2024-10-11 21:14:14,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 09:14:14" (1/1) ... [2024-10-11 21:14:14,678 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 21:14:14,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 21:14:14,855 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 21:14:14,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 21:14:14,893 INFO L204 MainTranslator]: Completed translation [2024-10-11 21:14:14,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14 WrapperNode [2024-10-11 21:14:14,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 21:14:14,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 21:14:14,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 21:14:14,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 21:14:14,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14" (1/1) ... [2024-10-11 21:14:14,904 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14" (1/1) ... [2024-10-11 21:14:14,914 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2024-10-11 21:14:14,915 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 21:14:14,917 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 21:14:14,917 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 21:14:14,917 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 21:14:14,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14" (1/1) ... [2024-10-11 21:14:14,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14" (1/1) ... [2024-10-11 21:14:14,931 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14" (1/1) ... [2024-10-11 21:14:14,946 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]. [2024-10-11 21:14:14,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14" (1/1) ... [2024-10-11 21:14:14,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14" (1/1) ... [2024-10-11 21:14:14,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14" (1/1) ... [2024-10-11 21:14:14,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14" (1/1) ... [2024-10-11 21:14:14,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14" (1/1) ... [2024-10-11 21:14:14,952 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14" (1/1) ... [2024-10-11 21:14:14,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 21:14:14,955 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 21:14:14,956 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 21:14:14,956 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 21:14:14,957 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14" (1/1) ... [2024-10-11 21:14:14,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 21:14:14,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:14,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 21:14:14,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 21:14:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 21:14:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 21:14:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-10-11 21:14:15,027 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-10-11 21:14:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-10-11 21:14:15,027 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-10-11 21:14:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 21:14:15,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 21:14:15,079 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 21:14:15,082 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 21:14:15,208 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-10-11 21:14:15,209 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 21:14:15,236 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 21:14:15,237 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 21:14:15,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 09:14:15 BoogieIcfgContainer [2024-10-11 21:14:15,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 21:14:15,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 21:14:15,239 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 21:14:15,241 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 21:14:15,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 09:14:14" (1/3) ... [2024-10-11 21:14:15,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac0dcbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 09:14:15, skipping insertion in model container [2024-10-11 21:14:15,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:14:14" (2/3) ... [2024-10-11 21:14:15,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac0dcbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 09:14:15, skipping insertion in model container [2024-10-11 21:14:15,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 09:14:15" (3/3) ... [2024-10-11 21:14:15,243 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2024-10-11 21:14:15,255 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 21:14:15,256 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-11 21:14:15,302 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 21:14:15,308 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;@d78029b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 21:14:15,308 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-10-11 21:14:15,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 40 states have internal predecessors, (45), 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) [2024-10-11 21:14:15,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 21:14:15,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:15,318 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 21:14:15,319 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:15,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:15,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1021543012, now seen corresponding path program 1 times [2024-10-11 21:14:15,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:15,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601866104] [2024-10-11 21:14:15,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:15,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:15,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:14:15,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:15,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601866104] [2024-10-11 21:14:15,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601866104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:15,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:14:15,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 21:14:15,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656945557] [2024-10-11 21:14:15,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:15,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 21:14:15,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:15,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 21:14:15,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 21:14:15,540 INFO L87 Difference]: Start difference. First operand has 48 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 40 states have internal predecessors, (45), 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 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-10-11 21:14:15,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:15,603 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2024-10-11 21:14:15,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 21:14:15,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 6 [2024-10-11 21:14:15,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:15,612 INFO L225 Difference]: With dead ends: 52 [2024-10-11 21:14:15,612 INFO L226 Difference]: Without dead ends: 44 [2024-10-11 21:14:15,615 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 [2024-10-11 21:14:15,618 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 11 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:15,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 80 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:14:15,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-11 21:14:15,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2024-10-11 21:14:15,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.56) internal successors, (39), 35 states have internal predecessors, (39), 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) [2024-10-11 21:14:15,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2024-10-11 21:14:15,660 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 6 [2024-10-11 21:14:15,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:15,660 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-10-11 21:14:15,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-10-11 21:14:15,661 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2024-10-11 21:14:15,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-11 21:14:15,662 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:15,662 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:14:15,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 21:14:15,662 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:15,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:15,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1603062213, now seen corresponding path program 1 times [2024-10-11 21:14:15,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:15,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308370683] [2024-10-11 21:14:15,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:15,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:15,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:14:15,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:15,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308370683] [2024-10-11 21:14:15,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308370683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:15,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:14:15,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 21:14:15,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167796345] [2024-10-11 21:14:15,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:15,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 21:14:15,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:15,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 21:14:15,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:14:15,723 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 5 states, 3 states have (on average 2.0) 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) [2024-10-11 21:14:15,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:15,860 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2024-10-11 21:14:15,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 21:14:15,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) 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 [2024-10-11 21:14:15,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:15,861 INFO L225 Difference]: With dead ends: 63 [2024-10-11 21:14:15,862 INFO L226 Difference]: Without dead ends: 57 [2024-10-11 21:14:15,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 21:14:15,863 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 26 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:15,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 157 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:14:15,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-10-11 21:14:15,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2024-10-11 21:14:15,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 45 states have internal predecessors, (51), 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) [2024-10-11 21:14:15,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2024-10-11 21:14:15,871 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 7 [2024-10-11 21:14:15,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:15,871 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2024-10-11 21:14:15,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) 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) [2024-10-11 21:14:15,871 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2024-10-11 21:14:15,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 21:14:15,872 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:15,872 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:14:15,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 21:14:15,873 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:15,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:15,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1070030294, now seen corresponding path program 1 times [2024-10-11 21:14:15,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:15,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401693371] [2024-10-11 21:14:15,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:15,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:15,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:14:15,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:15,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401693371] [2024-10-11 21:14:15,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401693371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:15,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:14:15,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 21:14:15,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301067402] [2024-10-11 21:14:15,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:15,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 21:14:15,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:15,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 21:14:15,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 21:14:15,908 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-11 21:14:15,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:15,930 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2024-10-11 21:14:15,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 21:14:15,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2024-10-11 21:14:15,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:15,932 INFO L225 Difference]: With dead ends: 57 [2024-10-11 21:14:15,932 INFO L226 Difference]: Without dead ends: 55 [2024-10-11 21:14:15,932 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 [2024-10-11 21:14:15,933 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 11 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:15,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 68 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:14:15,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-10-11 21:14:15,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2024-10-11 21:14:15,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 43 states have internal predecessors, (49), 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) [2024-10-11 21:14:15,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2024-10-11 21:14:15,940 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 62 transitions. Word has length 12 [2024-10-11 21:14:15,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:15,941 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 62 transitions. [2024-10-11 21:14:15,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-11 21:14:15,941 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2024-10-11 21:14:15,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 21:14:15,941 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:15,942 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:14:15,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 21:14:15,942 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:15,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:15,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1188799193, now seen corresponding path program 1 times [2024-10-11 21:14:15,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:15,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807330895] [2024-10-11 21:14:15,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:15,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:16,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:14:16,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:16,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807330895] [2024-10-11 21:14:16,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807330895] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:16,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:14:16,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 21:14:16,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007949415] [2024-10-11 21:14:16,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:16,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 21:14:16,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:16,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 21:14:16,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 21:14:16,030 INFO L87 Difference]: Start difference. First operand 53 states and 62 transitions. Second operand has 7 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-10-11 21:14:16,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:16,181 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2024-10-11 21:14:16,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 21:14:16,182 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 13 [2024-10-11 21:14:16,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:16,183 INFO L225 Difference]: With dead ends: 57 [2024-10-11 21:14:16,183 INFO L226 Difference]: Without dead ends: 53 [2024-10-11 21:14:16,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:14:16,185 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 51 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:16,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 91 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:14:16,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-11 21:14:16,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2024-10-11 21:14:16,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 36 states have (on average 1.25) internal successors, (45), 39 states have internal predecessors, (45), 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) [2024-10-11 21:14:16,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2024-10-11 21:14:16,202 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 13 [2024-10-11 21:14:16,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:16,202 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2024-10-11 21:14:16,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-10-11 21:14:16,203 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2024-10-11 21:14:16,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-11 21:14:16,203 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:16,204 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:14:16,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 21:14:16,204 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:16,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:16,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1317113808, now seen corresponding path program 1 times [2024-10-11 21:14:16,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:16,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645786834] [2024-10-11 21:14:16,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:16,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:16,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 21:14:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:16,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 21:14:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:16,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:14:16,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:16,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645786834] [2024-10-11 21:14:16,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645786834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:16,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:14:16,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 21:14:16,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127963658] [2024-10-11 21:14:16,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:16,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 21:14:16,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:16,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 21:14:16,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:14:16,358 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 21:14:16,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:16,412 INFO L93 Difference]: Finished difference Result 73 states and 93 transitions. [2024-10-11 21:14:16,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 21:14:16,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2024-10-11 21:14:16,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:16,414 INFO L225 Difference]: With dead ends: 73 [2024-10-11 21:14:16,414 INFO L226 Difference]: Without dead ends: 68 [2024-10-11 21:14:16,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:14:16,415 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:16,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 140 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:14:16,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-11 21:14:16,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2024-10-11 21:14:16,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 49 states have internal predecessors, (55), 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) [2024-10-11 21:14:16,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2024-10-11 21:14:16,425 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 22 [2024-10-11 21:14:16,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:16,426 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2024-10-11 21:14:16,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 21:14:16,426 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2024-10-11 21:14:16,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 21:14:16,427 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:16,427 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] [2024-10-11 21:14:16,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 21:14:16,427 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:16,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:16,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2108197165, now seen corresponding path program 1 times [2024-10-11 21:14:16,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:16,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835117985] [2024-10-11 21:14:16,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:16,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:16,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 21:14:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:16,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 21:14:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:16,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 21:14:16,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:16,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835117985] [2024-10-11 21:14:16,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835117985] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:16,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731079609] [2024-10-11 21:14:16,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:16,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:16,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:16,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:16,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 21:14:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:16,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 21:14:16,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:16,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:14:16,669 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:14:16,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731079609] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:16,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:14:16,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2024-10-11 21:14:16,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607840482] [2024-10-11 21:14:16,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:16,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 21:14:16,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:16,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 21:14:16,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-11 21:14:16,671 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-10-11 21:14:16,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:16,769 INFO L93 Difference]: Finished difference Result 112 states and 139 transitions. [2024-10-11 21:14:16,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 21:14:16,769 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 23 [2024-10-11 21:14:16,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:16,770 INFO L225 Difference]: With dead ends: 112 [2024-10-11 21:14:16,770 INFO L226 Difference]: Without dead ends: 62 [2024-10-11 21:14:16,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-11 21:14:16,771 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 32 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:16,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 142 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:14:16,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-11 21:14:16,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2024-10-11 21:14:16,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 46 states have internal predecessors, (52), 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) [2024-10-11 21:14:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2024-10-11 21:14:16,778 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 23 [2024-10-11 21:14:16,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:16,778 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2024-10-11 21:14:16,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-10-11 21:14:16,778 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2024-10-11 21:14:16,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-11 21:14:16,779 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:16,779 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] [2024-10-11 21:14:16,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 21:14:16,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:16,980 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:16,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:16,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1308693282, now seen corresponding path program 1 times [2024-10-11 21:14:16,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:16,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994076257] [2024-10-11 21:14:16,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:16,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:17,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 21:14:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:17,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 21:14:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:17,044 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 21:14:17,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:17,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994076257] [2024-10-11 21:14:17,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994076257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:17,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:14:17,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 21:14:17,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338941970] [2024-10-11 21:14:17,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:17,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 21:14:17,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:17,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 21:14:17,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:14:17,046 INFO L87 Difference]: Start difference. First operand 58 states and 70 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) [2024-10-11 21:14:17,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:17,077 INFO L93 Difference]: Finished difference Result 82 states and 107 transitions. [2024-10-11 21:14:17,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 21:14:17,078 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 24 [2024-10-11 21:14:17,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:17,079 INFO L225 Difference]: With dead ends: 82 [2024-10-11 21:14:17,080 INFO L226 Difference]: Without dead ends: 77 [2024-10-11 21:14:17,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:14:17,081 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 4 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:17,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 110 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:14:17,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-10-11 21:14:17,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 68. [2024-10-11 21:14:17,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 50 states have (on average 1.18) internal successors, (59), 54 states have internal predecessors, (59), 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) [2024-10-11 21:14:17,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 88 transitions. [2024-10-11 21:14:17,094 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 88 transitions. Word has length 24 [2024-10-11 21:14:17,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:17,094 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 88 transitions. [2024-10-11 21:14:17,094 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) [2024-10-11 21:14:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 88 transitions. [2024-10-11 21:14:17,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-11 21:14:17,096 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:17,096 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] [2024-10-11 21:14:17,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 21:14:17,096 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:17,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:17,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1559204346, now seen corresponding path program 1 times [2024-10-11 21:14:17,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:17,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195174112] [2024-10-11 21:14:17,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:17,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:17,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:14:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:17,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 21:14:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:17,176 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 21:14:17,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:17,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195174112] [2024-10-11 21:14:17,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195174112] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:17,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:14:17,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 21:14:17,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129095976] [2024-10-11 21:14:17,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:17,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 21:14:17,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:17,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 21:14:17,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:14:17,178 INFO L87 Difference]: Start difference. First operand 68 states and 88 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-10-11 21:14:17,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:17,217 INFO L93 Difference]: Finished difference Result 82 states and 107 transitions. [2024-10-11 21:14:17,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 21:14:17,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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 28 [2024-10-11 21:14:17,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:17,219 INFO L225 Difference]: With dead ends: 82 [2024-10-11 21:14:17,219 INFO L226 Difference]: Without dead ends: 80 [2024-10-11 21:14:17,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:14:17,220 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 4 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:17,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 109 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:14:17,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-11 21:14:17,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2024-10-11 21:14:17,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 57 states have (on average 1.1578947368421053) internal successors, (66), 61 states have internal predecessors, (66), 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) [2024-10-11 21:14:17,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2024-10-11 21:14:17,229 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 28 [2024-10-11 21:14:17,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:17,229 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2024-10-11 21:14:17,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-10-11 21:14:17,229 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2024-10-11 21:14:17,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-11 21:14:17,230 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:17,230 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] [2024-10-11 21:14:17,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 21:14:17,231 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:17,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:17,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1102557063, now seen corresponding path program 1 times [2024-10-11 21:14:17,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:17,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246823749] [2024-10-11 21:14:17,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:17,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:17,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:14:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:17,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 21:14:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:17,337 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-11 21:14:17,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:17,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246823749] [2024-10-11 21:14:17,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246823749] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:17,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980916994] [2024-10-11 21:14:17,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:17,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:17,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:17,341 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:17,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 21:14:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:17,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 21:14:17,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:14:17,456 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:17,594 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 21:14:17,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980916994] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:17,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:17,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-10-11 21:14:17,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73181253] [2024-10-11 21:14:17,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:17,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 21:14:17,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:17,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 21:14:17,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-10-11 21:14:17,597 INFO L87 Difference]: Start difference. First operand 77 states and 100 transitions. Second operand has 19 states, 17 states have (on average 3.411764705882353) internal successors, (58), 15 states have internal predecessors, (58), 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) [2024-10-11 21:14:17,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:17,968 INFO L93 Difference]: Finished difference Result 203 states and 274 transitions. [2024-10-11 21:14:17,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 21:14:17,969 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.411764705882353) internal successors, (58), 15 states have internal predecessors, (58), 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 29 [2024-10-11 21:14:17,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:17,970 INFO L225 Difference]: With dead ends: 203 [2024-10-11 21:14:17,970 INFO L226 Difference]: Without dead ends: 134 [2024-10-11 21:14:17,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2024-10-11 21:14:17,972 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 135 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:17,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 504 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:14:17,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-10-11 21:14:17,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 120. [2024-10-11 21:14:17,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 91 states have (on average 1.164835164835165) internal successors, (106), 96 states have internal predecessors, (106), 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) [2024-10-11 21:14:17,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 156 transitions. [2024-10-11 21:14:17,987 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 156 transitions. Word has length 29 [2024-10-11 21:14:17,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:17,988 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 156 transitions. [2024-10-11 21:14:17,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.411764705882353) internal successors, (58), 15 states have internal predecessors, (58), 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) [2024-10-11 21:14:17,988 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 156 transitions. [2024-10-11 21:14:17,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-11 21:14:17,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:17,989 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] [2024-10-11 21:14:18,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 21:14:18,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:18,194 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:18,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:18,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1810923195, now seen corresponding path program 2 times [2024-10-11 21:14:18,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:18,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535876344] [2024-10-11 21:14:18,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:18,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:18,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 21:14:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:18,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-11 21:14:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:18,267 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 21:14:18,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:18,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535876344] [2024-10-11 21:14:18,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535876344] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:18,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065649697] [2024-10-11 21:14:18,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:14:18,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:18,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:18,270 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:18,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 21:14:18,306 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:14:18,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:14:18,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 21:14:18,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:18,338 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 21:14:18,338 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:14:18,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065649697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:18,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:14:18,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-10-11 21:14:18,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110518419] [2024-10-11 21:14:18,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:18,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 21:14:18,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:18,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 21:14:18,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:14:18,340 INFO L87 Difference]: Start difference. First operand 120 states and 156 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 21:14:18,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:18,364 INFO L93 Difference]: Finished difference Result 129 states and 168 transitions. [2024-10-11 21:14:18,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 21:14:18,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-10-11 21:14:18,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:18,365 INFO L225 Difference]: With dead ends: 129 [2024-10-11 21:14:18,365 INFO L226 Difference]: Without dead ends: 128 [2024-10-11 21:14:18,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:14:18,366 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 3 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:18,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 132 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:14:18,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-10-11 21:14:18,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124. [2024-10-11 21:14:18,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 95 states have (on average 1.1578947368421053) internal successors, (110), 98 states have internal predecessors, (110), 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) [2024-10-11 21:14:18,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 160 transitions. [2024-10-11 21:14:18,376 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 160 transitions. Word has length 41 [2024-10-11 21:14:18,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:18,376 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 160 transitions. [2024-10-11 21:14:18,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 21:14:18,376 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 160 transitions. [2024-10-11 21:14:18,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-11 21:14:18,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:18,377 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] [2024-10-11 21:14:18,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 21:14:18,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:18,578 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:18,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:18,579 INFO L85 PathProgramCache]: Analyzing trace with hash 304044270, now seen corresponding path program 1 times [2024-10-11 21:14:18,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:18,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408839309] [2024-10-11 21:14:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:18,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:18,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 21:14:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:18,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-11 21:14:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:18,682 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 21:14:18,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:18,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408839309] [2024-10-11 21:14:18,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408839309] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:18,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016037417] [2024-10-11 21:14:18,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:18,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:18,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:18,685 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:18,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 21:14:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:18,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 21:14:18,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:14:18,891 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:19,071 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 21:14:19,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016037417] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:19,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:19,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 23 [2024-10-11 21:14:19,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652848502] [2024-10-11 21:14:19,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:19,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 21:14:19,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:19,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 21:14:19,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2024-10-11 21:14:19,073 INFO L87 Difference]: Start difference. First operand 124 states and 160 transitions. Second operand has 23 states, 21 states have (on average 3.380952380952381) internal successors, (71), 17 states have internal predecessors, (71), 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) [2024-10-11 21:14:19,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:19,576 INFO L93 Difference]: Finished difference Result 320 states and 422 transitions. [2024-10-11 21:14:19,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 21:14:19,577 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.380952380952381) internal successors, (71), 17 states have internal predecessors, (71), 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 42 [2024-10-11 21:14:19,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:19,580 INFO L225 Difference]: With dead ends: 320 [2024-10-11 21:14:19,580 INFO L226 Difference]: Without dead ends: 210 [2024-10-11 21:14:19,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 72 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2024-10-11 21:14:19,581 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 177 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:19,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 837 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 21:14:19,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-10-11 21:14:19,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 190. [2024-10-11 21:14:19,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 148 states have (on average 1.1554054054054055) internal successors, (171), 150 states have internal predecessors, (171), 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) [2024-10-11 21:14:19,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 244 transitions. [2024-10-11 21:14:19,608 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 244 transitions. Word has length 42 [2024-10-11 21:14:19,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:19,608 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 244 transitions. [2024-10-11 21:14:19,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.380952380952381) internal successors, (71), 17 states have internal predecessors, (71), 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) [2024-10-11 21:14:19,608 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 244 transitions. [2024-10-11 21:14:19,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-11 21:14:19,614 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:19,617 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] [2024-10-11 21:14:19,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 21:14:19,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 21:14:19,828 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:19,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:19,828 INFO L85 PathProgramCache]: Analyzing trace with hash 435493813, now seen corresponding path program 1 times [2024-10-11 21:14:19,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:19,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336176451] [2024-10-11 21:14:19,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:19,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:19,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 21:14:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:19,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 21:14:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:19,917 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-11 21:14:19,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:19,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336176451] [2024-10-11 21:14:19,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336176451] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:19,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029237444] [2024-10-11 21:14:19,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:19,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:19,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:19,920 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:19,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 21:14:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:19,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-11 21:14:19,966 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:20,174 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 13 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:14:20,174 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:20,415 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 21:14:20,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029237444] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:20,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:20,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 19, 19] total 24 [2024-10-11 21:14:20,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451443767] [2024-10-11 21:14:20,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:20,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 21:14:20,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:20,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 21:14:20,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2024-10-11 21:14:20,418 INFO L87 Difference]: Start difference. First operand 190 states and 244 transitions. Second operand has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 17 states have internal predecessors, (72), 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) [2024-10-11 21:14:20,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:20,882 INFO L93 Difference]: Finished difference Result 405 states and 524 transitions. [2024-10-11 21:14:20,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 21:14:20,882 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 17 states have internal predecessors, (72), 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 59 [2024-10-11 21:14:20,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:20,884 INFO L225 Difference]: With dead ends: 405 [2024-10-11 21:14:20,884 INFO L226 Difference]: Without dead ends: 235 [2024-10-11 21:14:20,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 95 SyntacticMatches, 16 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2024-10-11 21:14:20,885 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 200 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:20,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 954 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 21:14:20,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-10-11 21:14:20,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 212. [2024-10-11 21:14:20,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 166 states have (on average 1.1506024096385543) internal successors, (191), 167 states have internal predecessors, (191), 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) [2024-10-11 21:14:20,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 273 transitions. [2024-10-11 21:14:20,895 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 273 transitions. Word has length 59 [2024-10-11 21:14:20,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:20,895 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 273 transitions. [2024-10-11 21:14:20,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 17 states have internal predecessors, (72), 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) [2024-10-11 21:14:20,895 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 273 transitions. [2024-10-11 21:14:20,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-11 21:14:20,896 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:20,896 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] [2024-10-11 21:14:20,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 21:14:21,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-11 21:14:21,101 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:21,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:21,102 INFO L85 PathProgramCache]: Analyzing trace with hash 230249091, now seen corresponding path program 2 times [2024-10-11 21:14:21,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:21,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729942664] [2024-10-11 21:14:21,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:21,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:21,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 21:14:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:21,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:14:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:21,161 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-11 21:14:21,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:21,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729942664] [2024-10-11 21:14:21,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729942664] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:21,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869336907] [2024-10-11 21:14:21,162 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:14:21,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:21,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:21,164 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:21,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 21:14:21,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:14:21,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:14:21,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 21:14:21,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:21,231 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-11 21:14:21,231 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:14:21,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869336907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:21,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:14:21,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-10-11 21:14:21,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203113527] [2024-10-11 21:14:21,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:21,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 21:14:21,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:21,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 21:14:21,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:14:21,233 INFO L87 Difference]: Start difference. First operand 212 states and 273 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 21:14:21,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:21,255 INFO L93 Difference]: Finished difference Result 225 states and 293 transitions. [2024-10-11 21:14:21,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 21:14:21,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 59 [2024-10-11 21:14:21,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:21,256 INFO L225 Difference]: With dead ends: 225 [2024-10-11 21:14:21,257 INFO L226 Difference]: Without dead ends: 224 [2024-10-11 21:14:21,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:14:21,258 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 4 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 101 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 [2024-10-11 21:14:21,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 101 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:14:21,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-10-11 21:14:21,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 220. [2024-10-11 21:14:21,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 174 states have (on average 1.1436781609195403) internal successors, (199), 171 states have internal predecessors, (199), 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) [2024-10-11 21:14:21,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 281 transitions. [2024-10-11 21:14:21,279 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 281 transitions. Word has length 59 [2024-10-11 21:14:21,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:21,279 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 281 transitions. [2024-10-11 21:14:21,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 21:14:21,279 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 281 transitions. [2024-10-11 21:14:21,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-11 21:14:21,280 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:21,280 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] [2024-10-11 21:14:21,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 21:14:21,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 21:14:21,485 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:21,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:21,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1452212672, now seen corresponding path program 1 times [2024-10-11 21:14:21,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:21,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368180431] [2024-10-11 21:14:21,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:21,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:21,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 21:14:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:21,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:14:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:21,550 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-11 21:14:21,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:21,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368180431] [2024-10-11 21:14:21,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368180431] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:21,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152168182] [2024-10-11 21:14:21,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:21,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:21,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:21,566 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:21,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 21:14:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:21,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 21:14:21,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:21,639 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-11 21:14:21,639 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:14:21,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152168182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:21,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:14:21,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-10-11 21:14:21,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724709807] [2024-10-11 21:14:21,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:21,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 21:14:21,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:21,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 21:14:21,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:14:21,641 INFO L87 Difference]: Start difference. First operand 220 states and 281 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2024-10-11 21:14:21,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:21,671 INFO L93 Difference]: Finished difference Result 236 states and 302 transitions. [2024-10-11 21:14:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 21:14:21,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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 [2024-10-11 21:14:21,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:21,673 INFO L225 Difference]: With dead ends: 236 [2024-10-11 21:14:21,673 INFO L226 Difference]: Without dead ends: 235 [2024-10-11 21:14:21,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:14:21,674 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:21,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 110 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:14:21,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-10-11 21:14:21,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 216. [2024-10-11 21:14:21,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 171 states have (on average 1.1461988304093567) internal successors, (196), 168 states have internal predecessors, (196), 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) [2024-10-11 21:14:21,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 274 transitions. [2024-10-11 21:14:21,686 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 274 transitions. Word has length 60 [2024-10-11 21:14:21,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:21,686 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 274 transitions. [2024-10-11 21:14:21,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2024-10-11 21:14:21,686 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 274 transitions. [2024-10-11 21:14:21,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-11 21:14:21,687 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:21,687 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:14:21,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-11 21:14:21,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:21,888 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:21,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:21,889 INFO L85 PathProgramCache]: Analyzing trace with hash -619314417, now seen corresponding path program 1 times [2024-10-11 21:14:21,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:21,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423039649] [2024-10-11 21:14:21,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:21,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:21,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 21:14:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:21,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 21:14:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:21,974 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-10-11 21:14:21,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:21,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423039649] [2024-10-11 21:14:21,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423039649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:21,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:14:21,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 21:14:21,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684364550] [2024-10-11 21:14:21,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:21,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 21:14:21,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:21,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 21:14:21,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:14:21,976 INFO L87 Difference]: Start difference. First operand 216 states and 274 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) [2024-10-11 21:14:22,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:22,003 INFO L93 Difference]: Finished difference Result 226 states and 286 transitions. [2024-10-11 21:14:22,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 21:14:22,003 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 67 [2024-10-11 21:14:22,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:22,005 INFO L225 Difference]: With dead ends: 226 [2024-10-11 21:14:22,005 INFO L226 Difference]: Without dead ends: 225 [2024-10-11 21:14:22,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:14:22,007 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 2 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:22,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 137 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:14:22,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-10-11 21:14:22,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 210. [2024-10-11 21:14:22,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 167 states have (on average 1.1497005988023952) internal successors, (192), 163 states have internal predecessors, (192), 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) [2024-10-11 21:14:22,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 261 transitions. [2024-10-11 21:14:22,018 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 261 transitions. Word has length 67 [2024-10-11 21:14:22,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:22,018 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 261 transitions. [2024-10-11 21:14:22,019 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) [2024-10-11 21:14:22,019 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 261 transitions. [2024-10-11 21:14:22,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 21:14:22,020 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:22,020 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] [2024-10-11 21:14:22,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 21:14:22,020 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:22,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:22,021 INFO L85 PathProgramCache]: Analyzing trace with hash 802608651, now seen corresponding path program 1 times [2024-10-11 21:14:22,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:22,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791093547] [2024-10-11 21:14:22,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:22,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:22,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 21:14:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:22,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:14:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:22,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:22,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:14:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:22,076 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-11 21:14:22,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:22,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791093547] [2024-10-11 21:14:22,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791093547] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:22,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211755664] [2024-10-11 21:14:22,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:22,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:22,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:22,081 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:22,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 21:14:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:22,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-11 21:14:22,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:22,322 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 58 proven. 43 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 21:14:22,323 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:22,549 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 58 proven. 43 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 21:14:22,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211755664] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:22,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:22,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 19, 19] total 23 [2024-10-11 21:14:22,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229979207] [2024-10-11 21:14:22,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:22,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 21:14:22,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:22,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 21:14:22,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2024-10-11 21:14:22,551 INFO L87 Difference]: Start difference. First operand 210 states and 261 transitions. Second operand has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 16 states have internal predecessors, (83), 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) [2024-10-11 21:14:23,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:23,099 INFO L93 Difference]: Finished difference Result 582 states and 774 transitions. [2024-10-11 21:14:23,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-11 21:14:23,099 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 16 states have internal predecessors, (83), 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 78 [2024-10-11 21:14:23,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:23,101 INFO L225 Difference]: With dead ends: 582 [2024-10-11 21:14:23,101 INFO L226 Difference]: Without dead ends: 392 [2024-10-11 21:14:23,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 136 SyntacticMatches, 16 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=1376, Unknown=0, NotChecked=0, Total=1640 [2024-10-11 21:14:23,103 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 340 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:23,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 284 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:14:23,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-10-11 21:14:23,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 361. [2024-10-11 21:14:23,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 289 states have (on average 1.1418685121107266) internal successors, (330), 280 states have internal predecessors, (330), 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) [2024-10-11 21:14:23,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 452 transitions. [2024-10-11 21:14:23,117 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 452 transitions. Word has length 78 [2024-10-11 21:14:23,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:23,117 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 452 transitions. [2024-10-11 21:14:23,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 16 states have internal predecessors, (83), 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) [2024-10-11 21:14:23,117 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 452 transitions. [2024-10-11 21:14:23,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-11 21:14:23,118 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:23,118 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] [2024-10-11 21:14:23,136 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 21:14:23,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 21:14:23,322 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:23,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:23,323 INFO L85 PathProgramCache]: Analyzing trace with hash 467260402, now seen corresponding path program 1 times [2024-10-11 21:14:23,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:23,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054823249] [2024-10-11 21:14:23,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:23,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 21:14:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 21:14:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,370 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-10-11 21:14:23,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:23,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054823249] [2024-10-11 21:14:23,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054823249] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:23,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:14:23,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 21:14:23,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257881226] [2024-10-11 21:14:23,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:23,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 21:14:23,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:23,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 21:14:23,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:14:23,372 INFO L87 Difference]: Start difference. First operand 361 states and 452 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) [2024-10-11 21:14:23,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:23,397 INFO L93 Difference]: Finished difference Result 389 states and 491 transitions. [2024-10-11 21:14:23,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 21:14:23,397 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 73 [2024-10-11 21:14:23,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:23,399 INFO L225 Difference]: With dead ends: 389 [2024-10-11 21:14:23,399 INFO L226 Difference]: Without dead ends: 388 [2024-10-11 21:14:23,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:14:23,400 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 2 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:23,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 101 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:14:23,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-10-11 21:14:23,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 374. [2024-10-11 21:14:23,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 300 states have (on average 1.1366666666666667) internal successors, (341), 290 states have internal predecessors, (341), 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) [2024-10-11 21:14:23,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 472 transitions. [2024-10-11 21:14:23,413 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 472 transitions. Word has length 73 [2024-10-11 21:14:23,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:23,414 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 472 transitions. [2024-10-11 21:14:23,414 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) [2024-10-11 21:14:23,414 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 472 transitions. [2024-10-11 21:14:23,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 21:14:23,415 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:23,415 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] [2024-10-11 21:14:23,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 21:14:23,415 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:23,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:23,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1967908767, now seen corresponding path program 1 times [2024-10-11 21:14:23,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:23,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003101695] [2024-10-11 21:14:23,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:23,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 21:14:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 21:14:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,515 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-10-11 21:14:23,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:23,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003101695] [2024-10-11 21:14:23,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003101695] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:23,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:14:23,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 21:14:23,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400940035] [2024-10-11 21:14:23,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:23,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 21:14:23,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:23,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 21:14:23,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:14:23,516 INFO L87 Difference]: Start difference. First operand 374 states and 472 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 21:14:23,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:23,598 INFO L93 Difference]: Finished difference Result 476 states and 621 transitions. [2024-10-11 21:14:23,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 21:14:23,598 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 74 [2024-10-11 21:14:23,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:23,601 INFO L225 Difference]: With dead ends: 476 [2024-10-11 21:14:23,601 INFO L226 Difference]: Without dead ends: 475 [2024-10-11 21:14:23,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-11 21:14:23,602 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 6 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:23,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 279 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:14:23,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-10-11 21:14:23,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 400. [2024-10-11 21:14:23,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 319 states have (on average 1.128526645768025) internal successors, (360), 311 states have internal predecessors, (360), 48 states have call successors, (48), 18 states have call predecessors, (48), 29 states have return successors, (111), 70 states have call predecessors, (111), 47 states have call successors, (111) [2024-10-11 21:14:23,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 519 transitions. [2024-10-11 21:14:23,635 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 519 transitions. Word has length 74 [2024-10-11 21:14:23,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:23,636 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 519 transitions. [2024-10-11 21:14:23,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 21:14:23,636 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 519 transitions. [2024-10-11 21:14:23,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 21:14:23,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:23,637 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:14:23,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 21:14:23,637 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:23,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:23,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1864596262, now seen corresponding path program 1 times [2024-10-11 21:14:23,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:23,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706384578] [2024-10-11 21:14:23,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:23,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 21:14:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 21:14:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:14:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,690 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-10-11 21:14:23,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:23,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706384578] [2024-10-11 21:14:23,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706384578] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:23,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684328772] [2024-10-11 21:14:23,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:23,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:23,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:23,696 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:23,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 21:14:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:23,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 21:14:23,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:23,946 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 21:14:23,946 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:14:23,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684328772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:23,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:14:23,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4] total 24 [2024-10-11 21:14:23,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998732248] [2024-10-11 21:14:23,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:23,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-11 21:14:23,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:23,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-11 21:14:23,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-10-11 21:14:23,948 INFO L87 Difference]: Start difference. First operand 400 states and 519 transitions. Second operand has 21 states, 20 states have (on average 3.4) internal successors, (68), 11 states have internal predecessors, (68), 10 states have call successors, (13), 10 states have call predecessors, (13), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 21:14:24,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:24,269 INFO L93 Difference]: Finished difference Result 775 states and 1041 transitions. [2024-10-11 21:14:24,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 21:14:24,270 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.4) internal successors, (68), 11 states have internal predecessors, (68), 10 states have call successors, (13), 10 states have call predecessors, (13), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 95 [2024-10-11 21:14:24,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:24,272 INFO L225 Difference]: With dead ends: 775 [2024-10-11 21:14:24,272 INFO L226 Difference]: Without dead ends: 432 [2024-10-11 21:14:24,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=894, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 21:14:24,274 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 294 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:24,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 288 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:14:24,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-10-11 21:14:24,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 423. [2024-10-11 21:14:24,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 336 states have (on average 1.1279761904761905) internal successors, (379), 330 states have internal predecessors, (379), 50 states have call successors, (50), 20 states have call predecessors, (50), 33 states have return successors, (113), 72 states have call predecessors, (113), 49 states have call successors, (113) [2024-10-11 21:14:24,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 542 transitions. [2024-10-11 21:14:24,289 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 542 transitions. Word has length 95 [2024-10-11 21:14:24,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:24,289 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 542 transitions. [2024-10-11 21:14:24,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.4) internal successors, (68), 11 states have internal predecessors, (68), 10 states have call successors, (13), 10 states have call predecessors, (13), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 21:14:24,290 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 542 transitions. [2024-10-11 21:14:24,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 21:14:24,290 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:24,290 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] [2024-10-11 21:14:24,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 21:14:24,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:24,494 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:24,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:24,495 INFO L85 PathProgramCache]: Analyzing trace with hash 152580629, now seen corresponding path program 1 times [2024-10-11 21:14:24,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:24,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828917136] [2024-10-11 21:14:24,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:24,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:24,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 21:14:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:24,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:24,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:14:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:24,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 21:14:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-10-11 21:14:24,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:24,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828917136] [2024-10-11 21:14:24,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828917136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:14:24,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:14:24,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 21:14:24,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584531359] [2024-10-11 21:14:24,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:14:24,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 21:14:24,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:24,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 21:14:24,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:14:24,543 INFO L87 Difference]: Start difference. First operand 423 states and 542 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-10-11 21:14:24,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:24,584 INFO L93 Difference]: Finished difference Result 437 states and 558 transitions. [2024-10-11 21:14:24,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 21:14:24,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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 78 [2024-10-11 21:14:24,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:24,586 INFO L225 Difference]: With dead ends: 437 [2024-10-11 21:14:24,586 INFO L226 Difference]: Without dead ends: 436 [2024-10-11 21:14:24,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:14:24,587 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:24,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 137 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:14:24,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-10-11 21:14:24,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 423. [2024-10-11 21:14:24,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 336 states have (on average 1.1220238095238095) internal successors, (377), 330 states have internal predecessors, (377), 50 states have call successors, (50), 20 states have call predecessors, (50), 33 states have return successors, (113), 72 states have call predecessors, (113), 49 states have call successors, (113) [2024-10-11 21:14:24,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 540 transitions. [2024-10-11 21:14:24,602 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 540 transitions. Word has length 78 [2024-10-11 21:14:24,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:24,602 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 540 transitions. [2024-10-11 21:14:24,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-10-11 21:14:24,603 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 540 transitions. [2024-10-11 21:14:24,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 21:14:24,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:24,603 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] [2024-10-11 21:14:24,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 21:14:24,604 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:24,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:24,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1391651311, now seen corresponding path program 1 times [2024-10-11 21:14:24,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:24,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132608211] [2024-10-11 21:14:24,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:24,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:24,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 21:14:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:24,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:24,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:24,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:24,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:24,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 21:14:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:24,841 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 11 proven. 80 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-11 21:14:24,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:24,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132608211] [2024-10-11 21:14:24,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132608211] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:24,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933786957] [2024-10-11 21:14:24,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:24,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:24,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:24,844 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:24,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 21:14:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:24,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 21:14:24,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:25,000 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 34 proven. 73 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-11 21:14:25,000 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:25,231 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 14 proven. 83 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 21:14:25,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933786957] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:25,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:25,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 24 [2024-10-11 21:14:25,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589455029] [2024-10-11 21:14:25,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:25,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 21:14:25,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:25,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 21:14:25,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-10-11 21:14:25,233 INFO L87 Difference]: Start difference. First operand 423 states and 540 transitions. Second operand has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 19 states have internal predecessors, (100), 12 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-11 21:14:25,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:25,680 INFO L93 Difference]: Finished difference Result 832 states and 1125 transitions. [2024-10-11 21:14:25,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-11 21:14:25,681 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 19 states have internal predecessors, (100), 12 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14) Word has length 87 [2024-10-11 21:14:25,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:25,683 INFO L225 Difference]: With dead ends: 832 [2024-10-11 21:14:25,683 INFO L226 Difference]: Without dead ends: 484 [2024-10-11 21:14:25,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 175 SyntacticMatches, 13 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2024-10-11 21:14:25,686 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 160 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:25,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 805 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:14:25,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-10-11 21:14:25,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 431. [2024-10-11 21:14:25,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 342 states have (on average 1.1198830409356726) internal successors, (383), 336 states have internal predecessors, (383), 52 states have call successors, (52), 20 states have call predecessors, (52), 33 states have return successors, (111), 74 states have call predecessors, (111), 51 states have call successors, (111) [2024-10-11 21:14:25,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 546 transitions. [2024-10-11 21:14:25,710 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 546 transitions. Word has length 87 [2024-10-11 21:14:25,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:25,711 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 546 transitions. [2024-10-11 21:14:25,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 19 states have internal predecessors, (100), 12 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-11 21:14:25,711 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 546 transitions. [2024-10-11 21:14:25,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 21:14:25,712 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:25,712 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] [2024-10-11 21:14:25,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-11 21:14:25,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-11 21:14:25,917 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:25,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:25,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1057917660, now seen corresponding path program 1 times [2024-10-11 21:14:25,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:25,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075329436] [2024-10-11 21:14:25,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:25,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:26,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 21:14:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:26,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:26,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:26,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:26,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:26,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 21:14:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:26,065 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-11 21:14:26,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:26,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075329436] [2024-10-11 21:14:26,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075329436] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:26,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457428487] [2024-10-11 21:14:26,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:26,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:26,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:26,069 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:26,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 21:14:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:26,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 21:14:26,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:26,171 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-11 21:14:26,171 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:26,325 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-11 21:14:26,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457428487] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:26,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:26,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 17 [2024-10-11 21:14:26,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985404935] [2024-10-11 21:14:26,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:26,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 21:14:26,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:26,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 21:14:26,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-10-11 21:14:26,327 INFO L87 Difference]: Start difference. First operand 431 states and 546 transitions. Second operand has 17 states, 16 states have (on average 4.3125) internal successors, (69), 12 states have internal predecessors, (69), 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) [2024-10-11 21:14:26,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:26,564 INFO L93 Difference]: Finished difference Result 780 states and 988 transitions. [2024-10-11 21:14:26,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 21:14:26,565 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.3125) internal successors, (69), 12 states have internal predecessors, (69), 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 88 [2024-10-11 21:14:26,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:26,567 INFO L225 Difference]: With dead ends: 780 [2024-10-11 21:14:26,567 INFO L226 Difference]: Without dead ends: 435 [2024-10-11 21:14:26,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 177 SyntacticMatches, 12 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-10-11 21:14:26,569 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 126 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:26,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 567 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:14:26,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-10-11 21:14:26,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 425. [2024-10-11 21:14:26,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 336 states have (on average 1.1220238095238095) internal successors, (377), 333 states have internal predecessors, (377), 52 states have call successors, (52), 20 states have call predecessors, (52), 33 states have return successors, (108), 71 states have call predecessors, (108), 51 states have call successors, (108) [2024-10-11 21:14:26,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 537 transitions. [2024-10-11 21:14:26,608 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 537 transitions. Word has length 88 [2024-10-11 21:14:26,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:26,608 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 537 transitions. [2024-10-11 21:14:26,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.3125) internal successors, (69), 12 states have internal predecessors, (69), 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) [2024-10-11 21:14:26,608 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 537 transitions. [2024-10-11 21:14:26,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-11 21:14:26,610 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:26,610 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] [2024-10-11 21:14:26,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-11 21:14:26,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-11 21:14:26,814 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:26,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:26,814 INFO L85 PathProgramCache]: Analyzing trace with hash 167224997, now seen corresponding path program 1 times [2024-10-11 21:14:26,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:26,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715295194] [2024-10-11 21:14:26,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:26,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:27,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 21:14:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:27,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:27,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:27,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 21:14:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:27,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:27,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:14:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:27,114 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 50 proven. 63 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 21:14:27,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:27,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715295194] [2024-10-11 21:14:27,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715295194] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:27,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493961886] [2024-10-11 21:14:27,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:27,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:27,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:27,116 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:27,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 21:14:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:27,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 21:14:27,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:27,262 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-11 21:14:27,262 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:27,496 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-10-11 21:14:27,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493961886] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:27,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:27,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8, 7] total 31 [2024-10-11 21:14:27,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991810286] [2024-10-11 21:14:27,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:27,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-11 21:14:27,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:27,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-11 21:14:27,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2024-10-11 21:14:27,502 INFO L87 Difference]: Start difference. First operand 425 states and 537 transitions. Second operand has 31 states, 30 states have (on average 3.2666666666666666) internal successors, (98), 25 states have internal predecessors, (98), 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) [2024-10-11 21:14:28,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:28,735 INFO L93 Difference]: Finished difference Result 886 states and 1216 transitions. [2024-10-11 21:14:28,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-11 21:14:28,736 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.2666666666666666) internal successors, (98), 25 states have internal predecessors, (98), 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 91 [2024-10-11 21:14:28,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:28,738 INFO L225 Difference]: With dead ends: 886 [2024-10-11 21:14:28,738 INFO L226 Difference]: Without dead ends: 536 [2024-10-11 21:14:28,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 186 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1102 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=612, Invalid=4080, Unknown=0, NotChecked=0, Total=4692 [2024-10-11 21:14:28,741 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 274 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:28,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 407 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 21:14:28,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-10-11 21:14:28,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 443. [2024-10-11 21:14:28,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 349 states have (on average 1.1117478510028653) internal successors, (388), 348 states have internal predecessors, (388), 55 states have call successors, (55), 20 states have call predecessors, (55), 35 states have return successors, (121), 74 states have call predecessors, (121), 54 states have call successors, (121) [2024-10-11 21:14:28,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 564 transitions. [2024-10-11 21:14:28,759 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 564 transitions. Word has length 91 [2024-10-11 21:14:28,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:28,760 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 564 transitions. [2024-10-11 21:14:28,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.2666666666666666) internal successors, (98), 25 states have internal predecessors, (98), 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) [2024-10-11 21:14:28,760 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 564 transitions. [2024-10-11 21:14:28,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 21:14:28,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:28,761 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] [2024-10-11 21:14:28,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-11 21:14:28,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:28,962 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:28,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:28,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1584218804, now seen corresponding path program 1 times [2024-10-11 21:14:28,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:28,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249551248] [2024-10-11 21:14:28,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:28,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:29,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 21:14:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:29,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:29,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:29,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:14:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:29,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 21:14:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:29,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 21:14:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:29,193 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 41 proven. 73 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-11 21:14:29,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:29,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249551248] [2024-10-11 21:14:29,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249551248] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:29,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090257392] [2024-10-11 21:14:29,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:29,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:29,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:29,195 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:29,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 21:14:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:29,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 21:14:29,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:29,510 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-10-11 21:14:29,510 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:29,855 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-10-11 21:14:29,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090257392] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:29,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:29,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9, 11] total 34 [2024-10-11 21:14:29,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496365173] [2024-10-11 21:14:29,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:29,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-11 21:14:29,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:29,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-11 21:14:29,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1022, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 21:14:29,857 INFO L87 Difference]: Start difference. First operand 443 states and 564 transitions. Second operand has 34 states, 33 states have (on average 3.272727272727273) internal successors, (108), 28 states have internal predecessors, (108), 14 states have call successors, (17), 7 states have call predecessors, (17), 8 states have return successors, (15), 11 states have call predecessors, (15), 8 states have call successors, (15) [2024-10-11 21:14:31,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:31,296 INFO L93 Difference]: Finished difference Result 1018 states and 1459 transitions. [2024-10-11 21:14:31,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-10-11 21:14:31,297 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.272727272727273) internal successors, (108), 28 states have internal predecessors, (108), 14 states have call successors, (17), 7 states have call predecessors, (17), 8 states have return successors, (15), 11 states have call predecessors, (15), 8 states have call successors, (15) Word has length 92 [2024-10-11 21:14:31,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:31,300 INFO L225 Difference]: With dead ends: 1018 [2024-10-11 21:14:31,300 INFO L226 Difference]: Without dead ends: 628 [2024-10-11 21:14:31,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 196 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1957 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=929, Invalid=6553, Unknown=0, NotChecked=0, Total=7482 [2024-10-11 21:14:31,339 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 330 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 1679 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:31,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 393 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1679 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 21:14:31,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-10-11 21:14:31,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 520. [2024-10-11 21:14:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 412 states have (on average 1.1092233009708738) internal successors, (457), 404 states have internal predecessors, (457), 62 states have call successors, (62), 19 states have call predecessors, (62), 42 states have return successors, (210), 96 states have call predecessors, (210), 61 states have call successors, (210) [2024-10-11 21:14:31,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 729 transitions. [2024-10-11 21:14:31,377 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 729 transitions. Word has length 92 [2024-10-11 21:14:31,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:31,377 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 729 transitions. [2024-10-11 21:14:31,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.272727272727273) internal successors, (108), 28 states have internal predecessors, (108), 14 states have call successors, (17), 7 states have call predecessors, (17), 8 states have return successors, (15), 11 states have call predecessors, (15), 8 states have call successors, (15) [2024-10-11 21:14:31,377 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 729 transitions. [2024-10-11 21:14:31,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-11 21:14:31,378 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:31,378 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] [2024-10-11 21:14:31,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-11 21:14:31,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:31,585 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:31,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:31,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1623097427, now seen corresponding path program 1 times [2024-10-11 21:14:31,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:31,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272748733] [2024-10-11 21:14:31,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:31,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:31,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 21:14:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:31,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:31,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:31,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:31,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:31,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 21:14:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:31,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:31,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-11 21:14:31,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:31,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272748733] [2024-10-11 21:14:31,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272748733] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:31,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979871396] [2024-10-11 21:14:31,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:31,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:31,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:31,798 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:31,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-11 21:14:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:31,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 21:14:31,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:31,941 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-10-11 21:14:31,941 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:32,304 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-10-11 21:14:32,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979871396] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:32,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:32,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 15] total 28 [2024-10-11 21:14:32,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986908670] [2024-10-11 21:14:32,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:32,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-11 21:14:32,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:32,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-11 21:14:32,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=699, Unknown=0, NotChecked=0, Total=812 [2024-10-11 21:14:32,306 INFO L87 Difference]: Start difference. First operand 520 states and 729 transitions. Second operand has 29 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 29 states have internal predecessors, (78), 7 states have call successors, (9), 1 states have call predecessors, (9), 10 states have return successors, (17), 16 states have call predecessors, (17), 7 states have call successors, (17) [2024-10-11 21:14:32,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:32,629 INFO L93 Difference]: Finished difference Result 1003 states and 1619 transitions. [2024-10-11 21:14:32,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-11 21:14:32,629 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 29 states have internal predecessors, (78), 7 states have call successors, (9), 1 states have call predecessors, (9), 10 states have return successors, (17), 16 states have call predecessors, (17), 7 states have call successors, (17) Word has length 106 [2024-10-11 21:14:32,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:32,634 INFO L225 Difference]: With dead ends: 1003 [2024-10-11 21:14:32,634 INFO L226 Difference]: Without dead ends: 1001 [2024-10-11 21:14:32,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 211 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=273, Invalid=1533, Unknown=0, NotChecked=0, Total=1806 [2024-10-11 21:14:32,635 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 35 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:32,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 394 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:14:32,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-10-11 21:14:32,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 702. [2024-10-11 21:14:32,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 556 states have (on average 1.0935251798561152) internal successors, (608), 546 states have internal predecessors, (608), 79 states have call successors, (79), 19 states have call predecessors, (79), 63 states have return successors, (351), 136 states have call predecessors, (351), 78 states have call successors, (351) [2024-10-11 21:14:32,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1038 transitions. [2024-10-11 21:14:32,670 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1038 transitions. Word has length 106 [2024-10-11 21:14:32,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:32,671 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 1038 transitions. [2024-10-11 21:14:32,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.7857142857142856) internal successors, (78), 29 states have internal predecessors, (78), 7 states have call successors, (9), 1 states have call predecessors, (9), 10 states have return successors, (17), 16 states have call predecessors, (17), 7 states have call successors, (17) [2024-10-11 21:14:32,671 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1038 transitions. [2024-10-11 21:14:32,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-11 21:14:32,672 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:32,672 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] [2024-10-11 21:14:32,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-11 21:14:32,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-11 21:14:32,877 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:32,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:32,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1223587414, now seen corresponding path program 1 times [2024-10-11 21:14:32,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:32,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068820870] [2024-10-11 21:14:32,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:32,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:32,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 21:14:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:32,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:33,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:33,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:33,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:33,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 21:14:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:33,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:33,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:33,054 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-11 21:14:33,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:33,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068820870] [2024-10-11 21:14:33,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068820870] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:33,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603840400] [2024-10-11 21:14:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:33,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:33,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:33,056 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:33,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-11 21:14:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:33,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 21:14:33,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:33,193 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-11 21:14:33,193 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:33,579 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-10-11 21:14:33,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603840400] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:33,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:33,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 16] total 26 [2024-10-11 21:14:33,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089679640] [2024-10-11 21:14:33,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:33,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-11 21:14:33,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:33,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-11 21:14:33,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2024-10-11 21:14:33,584 INFO L87 Difference]: Start difference. First operand 702 states and 1038 transitions. Second operand has 27 states, 26 states have (on average 2.8846153846153846) internal successors, (75), 27 states have internal predecessors, (75), 7 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (17), 17 states have call predecessors, (17), 7 states have call successors, (17) [2024-10-11 21:14:33,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:33,866 INFO L93 Difference]: Finished difference Result 1132 states and 1839 transitions. [2024-10-11 21:14:33,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-11 21:14:33,867 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.8846153846153846) internal successors, (75), 27 states have internal predecessors, (75), 7 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (17), 17 states have call predecessors, (17), 7 states have call successors, (17) Word has length 107 [2024-10-11 21:14:33,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:33,874 INFO L225 Difference]: With dead ends: 1132 [2024-10-11 21:14:33,875 INFO L226 Difference]: Without dead ends: 1130 [2024-10-11 21:14:33,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 213 SyntacticMatches, 7 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=950, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 21:14:33,876 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 22 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:33,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 411 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:14:33,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2024-10-11 21:14:33,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 832. [2024-10-11 21:14:33,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 656 states have (on average 1.0731707317073171) internal successors, (704), 649 states have internal predecessors, (704), 91 states have call successors, (91), 19 states have call predecessors, (91), 81 states have return successors, (580), 163 states have call predecessors, (580), 90 states have call successors, (580) [2024-10-11 21:14:33,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1375 transitions. [2024-10-11 21:14:33,925 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1375 transitions. Word has length 107 [2024-10-11 21:14:33,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:33,926 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 1375 transitions. [2024-10-11 21:14:33,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.8846153846153846) internal successors, (75), 27 states have internal predecessors, (75), 7 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (17), 17 states have call predecessors, (17), 7 states have call successors, (17) [2024-10-11 21:14:33,926 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1375 transitions. [2024-10-11 21:14:33,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-11 21:14:33,927 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:33,927 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] [2024-10-11 21:14:33,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-11 21:14:34,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-11 21:14:34,132 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:34,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:34,132 INFO L85 PathProgramCache]: Analyzing trace with hash 840425772, now seen corresponding path program 1 times [2024-10-11 21:14:34,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:34,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983283029] [2024-10-11 21:14:34,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:34,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:34,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 21:14:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:34,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:34,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:34,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:34,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:34,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:34,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:34,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:34,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:34,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 21:14:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:34,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:34,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:34,327 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-11 21:14:34,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:34,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983283029] [2024-10-11 21:14:34,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983283029] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:34,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813543092] [2024-10-11 21:14:34,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:34,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:34,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:34,330 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:34,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-11 21:14:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:34,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 21:14:34,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:34,448 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-11 21:14:34,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:34,675 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-11 21:14:34,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813543092] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:34,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:34,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 20 [2024-10-11 21:14:34,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69758435] [2024-10-11 21:14:34,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:34,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 21:14:34,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:34,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 21:14:34,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2024-10-11 21:14:34,677 INFO L87 Difference]: Start difference. First operand 832 states and 1375 transitions. Second operand has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 16 states have internal predecessors, (90), 11 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (11), 5 states have call predecessors, (11), 7 states have call successors, (11) [2024-10-11 21:14:35,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:35,009 INFO L93 Difference]: Finished difference Result 1806 states and 3053 transitions. [2024-10-11 21:14:35,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 21:14:35,009 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 16 states have internal predecessors, (90), 11 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (11), 5 states have call predecessors, (11), 7 states have call successors, (11) Word has length 141 [2024-10-11 21:14:35,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:35,015 INFO L225 Difference]: With dead ends: 1806 [2024-10-11 21:14:35,015 INFO L226 Difference]: Without dead ends: 982 [2024-10-11 21:14:35,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 293 SyntacticMatches, 11 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2024-10-11 21:14:35,020 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 155 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:35,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 488 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:14:35,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2024-10-11 21:14:35,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 936. [2024-10-11 21:14:35,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 738 states have (on average 1.0745257452574526) internal successors, (793), 731 states have internal predecessors, (793), 103 states have call successors, (103), 22 states have call predecessors, (103), 91 states have return successors, (670), 182 states have call predecessors, (670), 102 states have call successors, (670) [2024-10-11 21:14:35,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1566 transitions. [2024-10-11 21:14:35,063 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1566 transitions. Word has length 141 [2024-10-11 21:14:35,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:35,064 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1566 transitions. [2024-10-11 21:14:35,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 16 states have internal predecessors, (90), 11 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (11), 5 states have call predecessors, (11), 7 states have call successors, (11) [2024-10-11 21:14:35,064 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1566 transitions. [2024-10-11 21:14:35,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-11 21:14:35,065 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:35,065 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-10-11 21:14:35,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-10-11 21:14:35,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-11 21:14:35,266 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:35,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:35,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1381722884, now seen corresponding path program 2 times [2024-10-11 21:14:35,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:35,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778047826] [2024-10-11 21:14:35,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:35,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 21:14:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 21:14:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-11 21:14:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:35,536 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 104 proven. 120 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-10-11 21:14:35,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:35,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778047826] [2024-10-11 21:14:35,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778047826] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:35,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953044376] [2024-10-11 21:14:35,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:14:35,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:35,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:35,539 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:35,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-11 21:14:35,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:14:35,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:14:35,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 21:14:35,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:35,716 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 130 proven. 124 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-10-11 21:14:35,717 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:36,054 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 130 proven. 125 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-10-11 21:14:36,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953044376] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:36,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:36,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 17] total 25 [2024-10-11 21:14:36,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390085439] [2024-10-11 21:14:36,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:36,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-11 21:14:36,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:36,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-11 21:14:36,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2024-10-11 21:14:36,056 INFO L87 Difference]: Start difference. First operand 936 states and 1566 transitions. Second operand has 25 states, 24 states have (on average 4.916666666666667) internal successors, (118), 21 states have internal predecessors, (118), 13 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (18), 10 states have call predecessors, (18), 9 states have call successors, (18) [2024-10-11 21:14:36,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:36,439 INFO L93 Difference]: Finished difference Result 1791 states and 3426 transitions. [2024-10-11 21:14:36,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-11 21:14:36,439 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.916666666666667) internal successors, (118), 21 states have internal predecessors, (118), 13 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (18), 10 states have call predecessors, (18), 9 states have call successors, (18) Word has length 160 [2024-10-11 21:14:36,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:36,445 INFO L225 Difference]: With dead ends: 1791 [2024-10-11 21:14:36,445 INFO L226 Difference]: Without dead ends: 924 [2024-10-11 21:14:36,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 331 SyntacticMatches, 12 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=267, Invalid=1373, Unknown=0, NotChecked=0, Total=1640 [2024-10-11 21:14:36,451 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 239 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:36,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 299 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:14:36,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-10-11 21:14:36,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 878. [2024-10-11 21:14:36,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 693 states have (on average 1.072150072150072) internal successors, (743), 684 states have internal predecessors, (743), 99 states have call successors, (99), 25 states have call predecessors, (99), 82 states have return successors, (566), 168 states have call predecessors, (566), 98 states have call successors, (566) [2024-10-11 21:14:36,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1408 transitions. [2024-10-11 21:14:36,520 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1408 transitions. Word has length 160 [2024-10-11 21:14:36,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:36,520 INFO L471 AbstractCegarLoop]: Abstraction has 878 states and 1408 transitions. [2024-10-11 21:14:36,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.916666666666667) internal successors, (118), 21 states have internal predecessors, (118), 13 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (18), 10 states have call predecessors, (18), 9 states have call successors, (18) [2024-10-11 21:14:36,520 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1408 transitions. [2024-10-11 21:14:36,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-11 21:14:36,521 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:36,522 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] [2024-10-11 21:14:36,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-10-11 21:14:36,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-11 21:14:36,726 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:36,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:36,726 INFO L85 PathProgramCache]: Analyzing trace with hash 581271092, now seen corresponding path program 3 times [2024-10-11 21:14:36,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:36,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166070519] [2024-10-11 21:14:36,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:36,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:36,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 21:14:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:36,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:36,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:36,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:37,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:37,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:37,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:37,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:37,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:37,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 21:14:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:37,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:37,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:37,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:37,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:37,100 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-10-11 21:14:37,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:37,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166070519] [2024-10-11 21:14:37,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166070519] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:37,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67078471] [2024-10-11 21:14:37,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 21:14:37,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:37,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:37,102 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:37,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-11 21:14:37,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-11 21:14:37,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:14:37,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-11 21:14:37,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:37,346 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-10-11 21:14:37,347 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:38,277 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 74 proven. 54 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-10-11 21:14:38,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67078471] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:38,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:38,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 22] total 36 [2024-10-11 21:14:38,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028930902] [2024-10-11 21:14:38,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:38,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-10-11 21:14:38,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:38,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-10-11 21:14:38,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1152, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 21:14:38,282 INFO L87 Difference]: Start difference. First operand 878 states and 1408 transitions. Second operand has 37 states, 36 states have (on average 2.75) internal successors, (99), 37 states have internal predecessors, (99), 9 states have call successors, (11), 1 states have call predecessors, (11), 11 states have return successors, (24), 24 states have call predecessors, (24), 9 states have call successors, (24) [2024-10-11 21:14:38,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:38,655 INFO L93 Difference]: Finished difference Result 1573 states and 2812 transitions. [2024-10-11 21:14:38,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-11 21:14:38,656 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.75) internal successors, (99), 37 states have internal predecessors, (99), 9 states have call successors, (11), 1 states have call predecessors, (11), 11 states have return successors, (24), 24 states have call predecessors, (24), 9 states have call successors, (24) Word has length 160 [2024-10-11 21:14:38,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:38,664 INFO L225 Difference]: With dead ends: 1573 [2024-10-11 21:14:38,664 INFO L226 Difference]: Without dead ends: 1547 [2024-10-11 21:14:38,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 324 SyntacticMatches, 16 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1162 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=317, Invalid=2035, Unknown=0, NotChecked=0, Total=2352 [2024-10-11 21:14:38,666 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 28 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:38,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 409 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:14:38,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2024-10-11 21:14:38,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1082. [2024-10-11 21:14:38,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 852 states have (on average 1.0469483568075117) internal successors, (892), 843 states have internal predecessors, (892), 119 states have call successors, (119), 24 states have call predecessors, (119), 107 states have return successors, (839), 214 states have call predecessors, (839), 118 states have call successors, (839) [2024-10-11 21:14:38,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1850 transitions. [2024-10-11 21:14:38,740 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1850 transitions. Word has length 160 [2024-10-11 21:14:38,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:38,740 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1850 transitions. [2024-10-11 21:14:38,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.75) internal successors, (99), 37 states have internal predecessors, (99), 9 states have call successors, (11), 1 states have call predecessors, (11), 11 states have return successors, (24), 24 states have call predecessors, (24), 9 states have call successors, (24) [2024-10-11 21:14:38,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1850 transitions. [2024-10-11 21:14:38,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-10-11 21:14:38,743 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:38,743 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 14, 14, 14, 12, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 3, 2, 1, 1, 1] [2024-10-11 21:14:38,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-11 21:14:38,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-11 21:14:38,948 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:38,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:38,948 INFO L85 PathProgramCache]: Analyzing trace with hash 645139901, now seen corresponding path program 2 times [2024-10-11 21:14:38,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:38,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590609480] [2024-10-11 21:14:38,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:38,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:14:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 21:14:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 21:14:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 21:14:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:39,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 294 proven. 242 refuted. 0 times theorem prover too weak. 897 trivial. 0 not checked. [2024-10-11 21:14:39,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:39,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590609480] [2024-10-11 21:14:39,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590609480] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:39,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303033230] [2024-10-11 21:14:39,333 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:14:39,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:39,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:39,334 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:39,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-11 21:14:39,432 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:14:39,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:14:39,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-11 21:14:39,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:39,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 365 proven. 278 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2024-10-11 21:14:39,790 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 365 proven. 290 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2024-10-11 21:14:40,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303033230] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:40,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:40,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 19] total 37 [2024-10-11 21:14:40,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865611021] [2024-10-11 21:14:40,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:40,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-10-11 21:14:40,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:40,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-10-11 21:14:40,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1185, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 21:14:40,769 INFO L87 Difference]: Start difference. First operand 1082 states and 1850 transitions. Second operand has 37 states, 35 states have (on average 4.714285714285714) internal successors, (165), 31 states have internal predecessors, (165), 23 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (26), 13 states have call predecessors, (26), 17 states have call successors, (26) [2024-10-11 21:14:41,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:41,599 INFO L93 Difference]: Finished difference Result 2151 states and 4124 transitions. [2024-10-11 21:14:41,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-11 21:14:41,600 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 4.714285714285714) internal successors, (165), 31 states have internal predecessors, (165), 23 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (26), 13 states have call predecessors, (26), 17 states have call successors, (26) Word has length 292 [2024-10-11 21:14:41,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:41,608 INFO L225 Difference]: With dead ends: 2151 [2024-10-11 21:14:41,608 INFO L226 Difference]: Without dead ends: 1136 [2024-10-11 21:14:41,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 612 SyntacticMatches, 12 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1007 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=485, Invalid=3175, Unknown=0, NotChecked=0, Total=3660 [2024-10-11 21:14:41,621 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 371 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:41,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 823 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 21:14:41,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2024-10-11 21:14:41,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 989. [2024-10-11 21:14:41,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 780 states have (on average 1.0320512820512822) internal successors, (805), 774 states have internal predecessors, (805), 107 states have call successors, (107), 31 states have call predecessors, (107), 98 states have return successors, (497), 183 states have call predecessors, (497), 106 states have call successors, (497) [2024-10-11 21:14:41,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1409 transitions. [2024-10-11 21:14:41,680 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1409 transitions. Word has length 292 [2024-10-11 21:14:41,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:41,681 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1409 transitions. [2024-10-11 21:14:41,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 4.714285714285714) internal successors, (165), 31 states have internal predecessors, (165), 23 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (26), 13 states have call predecessors, (26), 17 states have call successors, (26) [2024-10-11 21:14:41,682 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1409 transitions. [2024-10-11 21:14:41,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-10-11 21:14:41,684 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:41,684 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 11, 10, 10, 9, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1] [2024-10-11 21:14:41,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-10-11 21:14:41,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:41,885 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:41,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:41,885 INFO L85 PathProgramCache]: Analyzing trace with hash 658057111, now seen corresponding path program 3 times [2024-10-11 21:14:41,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:41,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109521845] [2024-10-11 21:14:41,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:41,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:41,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:14:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:41,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:41,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:41,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:41,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:41,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:41,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:41,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:42,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:42,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:42,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 21:14:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:42,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:42,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:42,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:42,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:42,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 21:14:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:42,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:42,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:42,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:42,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:42,104 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 181 proven. 145 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2024-10-11 21:14:42,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:42,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109521845] [2024-10-11 21:14:42,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109521845] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:42,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454947637] [2024-10-11 21:14:42,106 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 21:14:42,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:42,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:42,109 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:42,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-11 21:14:42,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-11 21:14:42,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:14:42,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 21:14:42,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:42,258 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 420 proven. 4 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2024-10-11 21:14:42,258 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:42,523 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 97 proven. 103 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2024-10-11 21:14:42,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454947637] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:42,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:42,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7, 7] total 23 [2024-10-11 21:14:42,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431571391] [2024-10-11 21:14:42,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:42,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 21:14:42,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:42,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 21:14:42,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2024-10-11 21:14:42,525 INFO L87 Difference]: Start difference. First operand 989 states and 1409 transitions. Second operand has 23 states, 22 states have (on average 5.409090909090909) internal successors, (119), 20 states have internal predecessors, (119), 11 states have call successors, (21), 5 states have call predecessors, (21), 7 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-10-11 21:14:42,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:42,927 INFO L93 Difference]: Finished difference Result 1705 states and 2555 transitions. [2024-10-11 21:14:42,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 21:14:42,927 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 5.409090909090909) internal successors, (119), 20 states have internal predecessors, (119), 11 states have call successors, (21), 5 states have call predecessors, (21), 7 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) Word has length 214 [2024-10-11 21:14:42,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:42,931 INFO L225 Difference]: With dead ends: 1705 [2024-10-11 21:14:42,931 INFO L226 Difference]: Without dead ends: 767 [2024-10-11 21:14:42,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 459 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=892, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 21:14:42,938 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 159 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:42,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 519 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:14:42,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-10-11 21:14:42,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 640. [2024-10-11 21:14:42,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 506 states have (on average 1.0256916996047432) internal successors, (519), 504 states have internal predecessors, (519), 75 states have call successors, (75), 32 states have call predecessors, (75), 57 states have return successors, (186), 103 states have call predecessors, (186), 74 states have call successors, (186) [2024-10-11 21:14:42,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 780 transitions. [2024-10-11 21:14:42,972 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 780 transitions. Word has length 214 [2024-10-11 21:14:42,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:42,972 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 780 transitions. [2024-10-11 21:14:42,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.409090909090909) internal successors, (119), 20 states have internal predecessors, (119), 11 states have call successors, (21), 5 states have call predecessors, (21), 7 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-10-11 21:14:42,973 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 780 transitions. [2024-10-11 21:14:42,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-10-11 21:14:42,975 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:42,975 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] [2024-10-11 21:14:42,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-10-11 21:14:43,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,21 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:43,176 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:43,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:43,176 INFO L85 PathProgramCache]: Analyzing trace with hash 2147215575, now seen corresponding path program 4 times [2024-10-11 21:14:43,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:43,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876677352] [2024-10-11 21:14:43,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:43,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:14:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 21:14:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 21:14:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:43,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:44,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:44,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:44,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:44,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:44,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:44,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 148 proven. 181 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2024-10-11 21:14:44,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:44,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876677352] [2024-10-11 21:14:44,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876677352] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:44,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110070593] [2024-10-11 21:14:44,053 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 21:14:44,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:44,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:44,057 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:44,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-11 21:14:44,151 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 21:14:44,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:14:44,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-10-11 21:14:44,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:44,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 148 proven. 181 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2024-10-11 21:14:44,532 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:47,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 218 proven. 160 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2024-10-11 21:14:47,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110070593] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:47,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:47,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 29] total 47 [2024-10-11 21:14:47,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138414891] [2024-10-11 21:14:47,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:47,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-10-11 21:14:47,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:47,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-11 21:14:47,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=1969, Unknown=0, NotChecked=0, Total=2256 [2024-10-11 21:14:47,158 INFO L87 Difference]: Start difference. First operand 640 states and 780 transitions. Second operand has 48 states, 47 states have (on average 2.6808510638297873) internal successors, (126), 48 states have internal predecessors, (126), 12 states have call successors, (14), 1 states have call predecessors, (14), 14 states have return successors, (32), 32 states have call predecessors, (32), 12 states have call successors, (32) [2024-10-11 21:14:47,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:47,399 INFO L93 Difference]: Finished difference Result 822 states and 1006 transitions. [2024-10-11 21:14:47,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-11 21:14:47,399 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.6808510638297873) internal successors, (126), 48 states have internal predecessors, (126), 12 states have call successors, (14), 1 states have call predecessors, (14), 14 states have return successors, (32), 32 states have call predecessors, (32), 12 states have call successors, (32) Word has length 252 [2024-10-11 21:14:47,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:47,403 INFO L225 Difference]: With dead ends: 822 [2024-10-11 21:14:47,408 INFO L226 Difference]: Without dead ends: 759 [2024-10-11 21:14:47,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 520 SyntacticMatches, 33 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2405 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=412, Invalid=2780, Unknown=0, NotChecked=0, Total=3192 [2024-10-11 21:14:47,415 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 24 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:47,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 531 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:14:47,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-10-11 21:14:47,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 659. [2024-10-11 21:14:47,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 522 states have (on average 1.024904214559387) internal successors, (535), 518 states have internal predecessors, (535), 77 states have call successors, (77), 32 states have call predecessors, (77), 58 states have return successors, (177), 108 states have call predecessors, (177), 76 states have call successors, (177) [2024-10-11 21:14:47,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 789 transitions. [2024-10-11 21:14:47,484 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 789 transitions. Word has length 252 [2024-10-11 21:14:47,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:47,487 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 789 transitions. [2024-10-11 21:14:47,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.6808510638297873) internal successors, (126), 48 states have internal predecessors, (126), 12 states have call successors, (14), 1 states have call predecessors, (14), 14 states have return successors, (32), 32 states have call predecessors, (32), 12 states have call successors, (32) [2024-10-11 21:14:47,488 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 789 transitions. [2024-10-11 21:14:47,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-10-11 21:14:47,489 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:47,490 INFO L215 NwaCegarLoop]: trace histogram [17, 16, 14, 13, 12, 11, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 1, 1, 1, 1] [2024-10-11 21:14:47,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-10-11 21:14:47,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-10-11 21:14:47,690 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:47,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:47,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1255227257, now seen corresponding path program 5 times [2024-10-11 21:14:47,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:47,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45634753] [2024-10-11 21:14:47,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:47,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:47,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:14:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:47,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:47,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:14:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 21:14:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 21:14:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-11 21:14:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:14:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 21:14:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:14:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 21:14:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:48,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 126 proven. 611 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2024-10-11 21:14:48,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:48,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45634753] [2024-10-11 21:14:48,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45634753] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:48,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966658918] [2024-10-11 21:14:48,189 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 21:14:48,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:48,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:48,191 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:48,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-11 21:14:48,294 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-10-11 21:14:48,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:14:48,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 21:14:48,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:48,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 809 proven. 37 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2024-10-11 21:14:48,484 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:48,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 144 proven. 303 refuted. 0 times theorem prover too weak. 984 trivial. 0 not checked. [2024-10-11 21:14:48,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966658918] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:48,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:48,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 11, 11] total 32 [2024-10-11 21:14:48,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839470110] [2024-10-11 21:14:48,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:48,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-11 21:14:48,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:48,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-11 21:14:48,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=861, Unknown=0, NotChecked=0, Total=992 [2024-10-11 21:14:48,948 INFO L87 Difference]: Start difference. First operand 659 states and 789 transitions. Second operand has 32 states, 31 states have (on average 5.354838709677419) internal successors, (166), 29 states have internal predecessors, (166), 17 states have call successors, (31), 5 states have call predecessors, (31), 9 states have return successors, (31), 15 states have call predecessors, (31), 14 states have call successors, (31) [2024-10-11 21:14:49,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:49,496 INFO L93 Difference]: Finished difference Result 1178 states and 1456 transitions. [2024-10-11 21:14:49,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-11 21:14:49,497 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.354838709677419) internal successors, (166), 29 states have internal predecessors, (166), 17 states have call successors, (31), 5 states have call predecessors, (31), 9 states have return successors, (31), 15 states have call predecessors, (31), 14 states have call successors, (31) Word has length 290 [2024-10-11 21:14:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:49,501 INFO L225 Difference]: With dead ends: 1178 [2024-10-11 21:14:49,501 INFO L226 Difference]: Without dead ends: 595 [2024-10-11 21:14:49,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 622 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=398, Invalid=1954, Unknown=0, NotChecked=0, Total=2352 [2024-10-11 21:14:49,507 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 173 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:49,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 299 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:14:49,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-10-11 21:14:49,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 560. [2024-10-11 21:14:49,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 446 states have (on average 1.0269058295964126) internal successors, (458), 441 states have internal predecessors, (458), 66 states have call successors, (66), 37 states have call predecessors, (66), 46 states have return successors, (112), 81 states have call predecessors, (112), 65 states have call successors, (112) [2024-10-11 21:14:49,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 636 transitions. [2024-10-11 21:14:49,535 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 636 transitions. Word has length 290 [2024-10-11 21:14:49,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:49,535 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 636 transitions. [2024-10-11 21:14:49,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.354838709677419) internal successors, (166), 29 states have internal predecessors, (166), 17 states have call successors, (31), 5 states have call predecessors, (31), 9 states have return successors, (31), 15 states have call predecessors, (31), 14 states have call successors, (31) [2024-10-11 21:14:49,536 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 636 transitions. [2024-10-11 21:14:49,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2024-10-11 21:14:49,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:49,537 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] [2024-10-11 21:14:49,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-10-11 21:14:49,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,23 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:49,741 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:49,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:49,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1379447357, now seen corresponding path program 4 times [2024-10-11 21:14:49,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:49,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997146798] [2024-10-11 21:14:49,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:49,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:14:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 21:14:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-11 21:14:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:49,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-11 21:14:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:50,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:50,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:50,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:50,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:50,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:50,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:50,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:50,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:50,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:50,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 21:14:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:50,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:50,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:50,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2525 backedges. 594 proven. 200 refuted. 0 times theorem prover too weak. 1731 trivial. 0 not checked. [2024-10-11 21:14:50,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:50,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997146798] [2024-10-11 21:14:50,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997146798] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:50,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099922501] [2024-10-11 21:14:50,157 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 21:14:50,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:50,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:50,160 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:50,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-11 21:14:50,286 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 21:14:50,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:14:50,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 21:14:50,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:50,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2525 backedges. 437 proven. 662 refuted. 0 times theorem prover too weak. 1426 trivial. 0 not checked. [2024-10-11 21:14:50,509 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:14:51,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2525 backedges. 437 proven. 686 refuted. 0 times theorem prover too weak. 1402 trivial. 0 not checked. [2024-10-11 21:14:51,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099922501] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:14:51,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:14:51,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 21] total 36 [2024-10-11 21:14:51,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962028045] [2024-10-11 21:14:51,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:14:51,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-10-11 21:14:51,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:14:51,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-10-11 21:14:51,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1096, Unknown=0, NotChecked=0, Total=1260 [2024-10-11 21:14:51,872 INFO L87 Difference]: Start difference. First operand 560 states and 636 transitions. Second operand has 36 states, 35 states have (on average 5.571428571428571) internal successors, (195), 34 states have internal predecessors, (195), 25 states have call successors, (34), 3 states have call predecessors, (34), 12 states have return successors, (38), 17 states have call predecessors, (38), 23 states have call successors, (38) [2024-10-11 21:14:52,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:14:52,498 INFO L93 Difference]: Finished difference Result 1082 states and 1280 transitions. [2024-10-11 21:14:52,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-11 21:14:52,499 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 5.571428571428571) internal successors, (195), 34 states have internal predecessors, (195), 25 states have call successors, (34), 3 states have call predecessors, (34), 12 states have return successors, (38), 17 states have call predecessors, (38), 23 states have call successors, (38) Word has length 383 [2024-10-11 21:14:52,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:14:52,506 INFO L225 Difference]: With dead ends: 1082 [2024-10-11 21:14:52,506 INFO L226 Difference]: Without dead ends: 581 [2024-10-11 21:14:52,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 813 SyntacticMatches, 10 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 722 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=381, Invalid=2169, Unknown=0, NotChecked=0, Total=2550 [2024-10-11 21:14:52,512 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 192 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 21:14:52,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 761 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 21:14:52,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-10-11 21:14:52,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 527. [2024-10-11 21:14:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 420 states have (on average 1.0238095238095237) internal successors, (430), 417 states have internal predecessors, (430), 64 states have call successors, (64), 38 states have call predecessors, (64), 41 states have return successors, (90), 71 states have call predecessors, (90), 63 states have call successors, (90) [2024-10-11 21:14:52,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 584 transitions. [2024-10-11 21:14:52,566 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 584 transitions. Word has length 383 [2024-10-11 21:14:52,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:14:52,567 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 584 transitions. [2024-10-11 21:14:52,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 5.571428571428571) internal successors, (195), 34 states have internal predecessors, (195), 25 states have call successors, (34), 3 states have call predecessors, (34), 12 states have return successors, (38), 17 states have call predecessors, (38), 23 states have call successors, (38) [2024-10-11 21:14:52,567 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 584 transitions. [2024-10-11 21:14:52,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-10-11 21:14:52,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:14:52,573 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] [2024-10-11 21:14:52,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-10-11 21:14:52,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,24 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:52,774 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:14:52,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:14:52,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1566332572, now seen corresponding path program 5 times [2024-10-11 21:14:52,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:14:52,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705037639] [2024-10-11 21:14:52,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:14:52,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:14:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:53,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 21:14:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 21:14:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-11 21:14:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-11 21:14:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:14:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 21:14:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:14:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:14:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:14:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:14:54,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 432 proven. 525 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked. [2024-10-11 21:14:54,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:14:54,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705037639] [2024-10-11 21:14:54,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705037639] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:14:54,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324244698] [2024-10-11 21:14:54,727 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 21:14:54,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:14:54,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:14:54,728 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:14:54,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-11 21:14:54,905 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-10-11 21:14:54,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:14:54,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-10-11 21:14:54,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:14:55,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 432 proven. 525 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked. [2024-10-11 21:14:55,318 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:15:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 585 proven. 468 refuted. 0 times theorem prover too weak. 1749 trivial. 0 not checked. [2024-10-11 21:15:01,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324244698] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:15:01,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:15:01,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 37] total 58 [2024-10-11 21:15:01,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175032778] [2024-10-11 21:15:01,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:15:01,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-10-11 21:15:01,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:15:01,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-10-11 21:15:01,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=3007, Unknown=0, NotChecked=0, Total=3422 [2024-10-11 21:15:01,234 INFO L87 Difference]: Start difference. First operand 527 states and 584 transitions. Second operand has 59 states, 58 states have (on average 2.6379310344827585) internal successors, (153), 59 states have internal predecessors, (153), 15 states have call successors, (17), 1 states have call predecessors, (17), 17 states have return successors, (40), 40 states have call predecessors, (40), 15 states have call successors, (40) [2024-10-11 21:15:01,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:15:01,460 INFO L93 Difference]: Finished difference Result 547 states and 604 transitions. [2024-10-11 21:15:01,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-11 21:15:01,460 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.6379310344827585) internal successors, (153), 59 states have internal predecessors, (153), 15 states have call successors, (17), 1 states have call predecessors, (17), 17 states have return successors, (40), 40 states have call predecessors, (40), 15 states have call successors, (40) Word has length 403 [2024-10-11 21:15:01,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:15:01,463 INFO L225 Difference]: With dead ends: 547 [2024-10-11 21:15:01,463 INFO L226 Difference]: Without dead ends: 422 [2024-10-11 21:15:01,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 969 GetRequests, 846 SyntacticMatches, 62 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4607 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=478, Invalid=3428, Unknown=0, NotChecked=0, Total=3906 [2024-10-11 21:15:01,464 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 10 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:15:01,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 685 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:15:01,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-10-11 21:15:01,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 395. [2024-10-11 21:15:01,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 314 states have (on average 1.015923566878981) internal successors, (319), 313 states have internal predecessors, (319), 48 states have call successors, (48), 31 states have call predecessors, (48), 32 states have return successors, (58), 50 states have call predecessors, (58), 47 states have call successors, (58) [2024-10-11 21:15:01,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 425 transitions. [2024-10-11 21:15:01,483 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 425 transitions. Word has length 403 [2024-10-11 21:15:01,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:15:01,484 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 425 transitions. [2024-10-11 21:15:01,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.6379310344827585) internal successors, (153), 59 states have internal predecessors, (153), 15 states have call successors, (17), 1 states have call predecessors, (17), 17 states have return successors, (40), 40 states have call predecessors, (40), 15 states have call successors, (40) [2024-10-11 21:15:01,484 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 425 transitions. [2024-10-11 21:15:01,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2024-10-11 21:15:01,486 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:15:01,487 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 31, 30, 26, 25, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 11, 9, 6, 6, 1, 1, 1] [2024-10-11 21:15:01,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-10-11 21:15:01,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-10-11 21:15:01,690 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:15:01,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:15:01,691 INFO L85 PathProgramCache]: Analyzing trace with hash -418827179, now seen corresponding path program 6 times [2024-10-11 21:15:01,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:15:01,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687689544] [2024-10-11 21:15:01,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:15:01,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:15:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 21:15:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:15:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 21:15:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:01,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-11 21:15:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:15:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-10-11 21:15:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:15:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 21:15:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2024-10-11 21:15:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:15:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 21:15:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-11 21:15:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:02,344 INFO L134 CoverageAnalysis]: Checked inductivity of 6659 backedges. 1390 proven. 277 refuted. 0 times theorem prover too weak. 4992 trivial. 0 not checked. [2024-10-11 21:15:02,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:15:02,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687689544] [2024-10-11 21:15:02,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687689544] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:15:02,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141749774] [2024-10-11 21:15:02,344 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 21:15:02,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:15:02,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:15:02,346 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:15:02,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-11 21:15:02,587 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2024-10-11 21:15:02,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:15:02,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 21:15:02,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:15:02,728 INFO L134 CoverageAnalysis]: Checked inductivity of 6659 backedges. 1296 proven. 107 refuted. 0 times theorem prover too weak. 5256 trivial. 0 not checked. [2024-10-11 21:15:02,729 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:15:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 6659 backedges. 1296 proven. 113 refuted. 0 times theorem prover too weak. 5250 trivial. 0 not checked. [2024-10-11 21:15:03,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141749774] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:15:03,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:15:03,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 15] total 32 [2024-10-11 21:15:03,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733092709] [2024-10-11 21:15:03,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:15:03,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-11 21:15:03,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:15:03,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-11 21:15:03,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2024-10-11 21:15:03,929 INFO L87 Difference]: Start difference. First operand 395 states and 425 transitions. Second operand has 32 states, 31 states have (on average 5.419354838709677) internal successors, (168), 31 states have internal predecessors, (168), 19 states have call successors, (30), 2 states have call predecessors, (30), 11 states have return successors, (33), 19 states have call predecessors, (33), 18 states have call successors, (33) [2024-10-11 21:15:04,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:15:04,382 INFO L93 Difference]: Finished difference Result 474 states and 505 transitions. [2024-10-11 21:15:04,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-11 21:15:04,383 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.419354838709677) internal successors, (168), 31 states have internal predecessors, (168), 19 states have call successors, (30), 2 states have call predecessors, (30), 11 states have return successors, (33), 19 states have call predecessors, (33), 18 states have call successors, (33) Word has length 613 [2024-10-11 21:15:04,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:15:04,385 INFO L225 Difference]: With dead ends: 474 [2024-10-11 21:15:04,386 INFO L226 Difference]: Without dead ends: 402 [2024-10-11 21:15:04,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1378 GetRequests, 1329 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=284, Invalid=1608, Unknown=0, NotChecked=0, Total=1892 [2024-10-11 21:15:04,387 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 103 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:15:04,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 479 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:15:04,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-10-11 21:15:04,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 375. [2024-10-11 21:15:04,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 299 states have (on average 1.0066889632107023) internal successors, (301), 297 states have internal predecessors, (301), 46 states have call successors, (46), 31 states have call predecessors, (46), 29 states have return successors, (51), 46 states have call predecessors, (51), 45 states have call successors, (51) [2024-10-11 21:15:04,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 398 transitions. [2024-10-11 21:15:04,416 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 398 transitions. Word has length 613 [2024-10-11 21:15:04,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:15:04,416 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 398 transitions. [2024-10-11 21:15:04,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.419354838709677) internal successors, (168), 31 states have internal predecessors, (168), 19 states have call successors, (30), 2 states have call predecessors, (30), 11 states have return successors, (33), 19 states have call predecessors, (33), 18 states have call successors, (33) [2024-10-11 21:15:04,417 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 398 transitions. [2024-10-11 21:15:04,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2024-10-11 21:15:04,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:15:04,422 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] [2024-10-11 21:15:04,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-10-11 21:15:04,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-10-11 21:15:04,627 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-10-11 21:15:04,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:15:04,627 INFO L85 PathProgramCache]: Analyzing trace with hash 325777454, now seen corresponding path program 7 times [2024-10-11 21:15:04,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:15:04,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315024840] [2024-10-11 21:15:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:15:04,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:15:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:06,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 21:15:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:07,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:15:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 21:15:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-11 21:15:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:15:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-10-11 21:15:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:07,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:07,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:15:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 21:15:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2024-10-11 21:15:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:15:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 21:15:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-11 21:15:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 21:15:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 21:15:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 21:15:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 21:15:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1237 proven. 1440 refuted. 0 times theorem prover too weak. 4877 trivial. 0 not checked. [2024-10-11 21:15:08,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:15:08,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315024840] [2024-10-11 21:15:08,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315024840] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:15:08,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104619864] [2024-10-11 21:15:08,613 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 21:15:08,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:15:08,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:15:08,614 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:15:08,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-10-11 21:15:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:15:08,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 133 conjuncts are in the unsatisfiable core [2024-10-11 21:15:08,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:15:09,495 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1237 proven. 1440 refuted. 0 times theorem prover too weak. 4877 trivial. 0 not checked. [2024-10-11 21:15:09,496 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:15:24,734 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1543 proven. 1316 refuted. 0 times theorem prover too weak. 4695 trivial. 0 not checked. [2024-10-11 21:15:24,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104619864] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:15:24,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:15:24,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 46] total 69 [2024-10-11 21:15:24,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229362578] [2024-10-11 21:15:24,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:15:24,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2024-10-11 21:15:24,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:15:24,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2024-10-11 21:15:24,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=569, Invalid=4261, Unknown=0, NotChecked=0, Total=4830 [2024-10-11 21:15:24,738 INFO L87 Difference]: Start difference. First operand 375 states and 398 transitions. Second operand has 70 states, 69 states have (on average 2.608695652173913) internal successors, (180), 70 states have internal predecessors, (180), 18 states have call successors, (20), 1 states have call predecessors, (20), 20 states have return successors, (48), 48 states have call predecessors, (48), 18 states have call successors, (48) [2024-10-11 21:15:24,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:15:24,946 INFO L93 Difference]: Finished difference Result 403 states and 428 transitions. [2024-10-11 21:15:24,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-10-11 21:15:24,946 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 2.608695652173913) internal successors, (180), 70 states have internal predecessors, (180), 18 states have call successors, (20), 1 states have call predecessors, (20), 20 states have return successors, (48), 48 states have call predecessors, (48), 18 states have call successors, (48) Word has length 652 [2024-10-11 21:15:24,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:15:24,948 INFO L225 Difference]: With dead ends: 403 [2024-10-11 21:15:24,948 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 21:15:24,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1571 GetRequests, 1388 SyntacticMatches, 111 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8903 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=643, Invalid=4759, Unknown=0, NotChecked=0, Total=5402 [2024-10-11 21:15:24,950 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 10 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:15:24,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 629 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:15:24,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 21:15:24,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 21:15:24,951 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) [2024-10-11 21:15:24,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 21:15:24,951 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 652 [2024-10-11 21:15:24,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:15:24,951 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 21:15:24,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 2.608695652173913) internal successors, (180), 70 states have internal predecessors, (180), 18 states have call successors, (20), 1 states have call predecessors, (20), 20 states have return successors, (48), 48 states have call predecessors, (48), 18 states have call successors, (48) [2024-10-11 21:15:24,952 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 21:15:24,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 21:15:24,954 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2024-10-11 21:15:24,954 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2024-10-11 21:15:24,954 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2024-10-11 21:15:24,954 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2024-10-11 21:15:24,954 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2024-10-11 21:15:24,954 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2024-10-11 21:15:24,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2024-10-11 21:15:24,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2024-10-11 21:15:24,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2024-10-11 21:15:24,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2024-10-11 21:15:24,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2024-10-11 21:15:24,955 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2024-10-11 21:15:24,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-10-11 21:15:25,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,27 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:15:25,163 INFO L407 BasicCegarLoop]: Path program histogram: [7, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:15:25,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.