./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/fibo_7-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/fibo_7-1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 17c70baee0bc6a4a26b6403fb6f46125ad9d7f8a7127109634f2327c61aaf5cb --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 14:32:15,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 14:32:15,963 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 14:32:15,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 14:32:15,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 14:32:15,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 14:32:15,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 14:32:15,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 14:32:15,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 14:32:15,993 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 14:32:15,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 14:32:15,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 14:32:15,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 14:32:15,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 14:32:15,994 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 14:32:15,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 14:32:15,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 14:32:15,995 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 14:32:15,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:32:15,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 14:32:15,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 14:32:15,996 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 14:32:15,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 14:32:15,996 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 14:32:15,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 14:32:15,996 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 14:32:15,996 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 14:32:15,996 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 14:32:15,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 14:32:15,996 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 17c70baee0bc6a4a26b6403fb6f46125ad9d7f8a7127109634f2327c61aaf5cb [2025-02-06 14:32:16,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 14:32:16,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 14:32:16,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 14:32:16,238 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 14:32:16,238 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 14:32:16,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_7-1.c [2025-02-06 14:32:17,408 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bb4763c46/5250829f021e45239ad1477005348e29/FLAGeb4148d9e [2025-02-06 14:32:17,629 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 14:32:17,629 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_7-1.c [2025-02-06 14:32:17,634 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bb4763c46/5250829f021e45239ad1477005348e29/FLAGeb4148d9e [2025-02-06 14:32:17,981 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bb4763c46/5250829f021e45239ad1477005348e29 [2025-02-06 14:32:17,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 14:32:17,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 14:32:17,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 14:32:17,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 14:32:17,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 14:32:17,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:32:17" (1/1) ... [2025-02-06 14:32:17,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1342aacc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:17, skipping insertion in model container [2025-02-06 14:32:17,988 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:32:17" (1/1) ... [2025-02-06 14:32:18,002 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 14:32:18,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 14:32:18,106 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 14:32:18,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 14:32:18,124 INFO L204 MainTranslator]: Completed translation [2025-02-06 14:32:18,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:18 WrapperNode [2025-02-06 14:32:18,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 14:32:18,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 14:32:18,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 14:32:18,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 14:32:18,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:18" (1/1) ... [2025-02-06 14:32:18,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:18" (1/1) ... [2025-02-06 14:32:18,144 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2025-02-06 14:32:18,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 14:32:18,145 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 14:32:18,145 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 14:32:18,145 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 14:32:18,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:18" (1/1) ... [2025-02-06 14:32:18,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:18" (1/1) ... [2025-02-06 14:32:18,151 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:18" (1/1) ... [2025-02-06 14:32:18,158 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]. [2025-02-06 14:32:18,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:18" (1/1) ... [2025-02-06 14:32:18,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:18" (1/1) ... [2025-02-06 14:32:18,160 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:18" (1/1) ... [2025-02-06 14:32:18,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:18" (1/1) ... [2025-02-06 14:32:18,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:18" (1/1) ... [2025-02-06 14:32:18,161 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:18" (1/1) ... [2025-02-06 14:32:18,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 14:32:18,163 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 14:32:18,163 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 14:32:18,163 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 14:32:18,164 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:18" (1/1) ... [2025-02-06 14:32:18,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:32:18,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:18,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 14:32:18,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 14:32:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 14:32:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 14:32:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 14:32:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 14:32:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2025-02-06 14:32:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2025-02-06 14:32:18,253 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 14:32:18,254 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 14:32:18,358 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L13: havoc #t~ret4;havoc #t~ret5; [2025-02-06 14:32:18,368 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-02-06 14:32:18,369 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 14:32:18,376 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 14:32:18,376 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 14:32:18,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:32:18 BoogieIcfgContainer [2025-02-06 14:32:18,376 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 14:32:18,378 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 14:32:18,378 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 14:32:18,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 14:32:18,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:32:17" (1/3) ... [2025-02-06 14:32:18,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd015b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:32:18, skipping insertion in model container [2025-02-06 14:32:18,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:18" (2/3) ... [2025-02-06 14:32:18,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd015b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:32:18, skipping insertion in model container [2025-02-06 14:32:18,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:32:18" (3/3) ... [2025-02-06 14:32:18,385 INFO L128 eAbstractionObserver]: Analyzing ICFG fibo_7-1.c [2025-02-06 14:32:18,398 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 14:32:18,400 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fibo_7-1.c that has 2 procedures, 32 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-02-06 14:32:18,446 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 14:32:18,456 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;@25f9e9e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 14:32:18,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-06 14:32:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 27 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 14:32:18,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-06 14:32:18,464 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:18,465 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:18,465 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 14:32:18,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:18,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1976054303, now seen corresponding path program 1 times [2025-02-06 14:32:18,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:18,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392950184] [2025-02-06 14:32:18,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:18,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:18,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 14:32:18,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 14:32:18,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:18,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:18,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:18,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392950184] [2025-02-06 14:32:18,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392950184] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:32:18,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:32:18,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 14:32:18,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882006547] [2025-02-06 14:32:18,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:32:18,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 14:32:18,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:18,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 14:32:18,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 14:32:18,617 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 27 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:18,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:18,652 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2025-02-06 14:32:18,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 14:32:18,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-06 14:32:18,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:18,660 INFO L225 Difference]: With dead ends: 38 [2025-02-06 14:32:18,661 INFO L226 Difference]: Without dead ends: 24 [2025-02-06 14:32:18,663 INFO L434 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 [2025-02-06 14:32:18,666 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 11 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:18,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 42 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:32:18,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-02-06 14:32:18,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2025-02-06 14:32:18,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:32:18,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2025-02-06 14:32:18,701 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 7 [2025-02-06 14:32:18,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:18,703 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2025-02-06 14:32:18,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:18,703 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2025-02-06 14:32:18,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 14:32:18,704 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:18,704 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:18,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 14:32:18,705 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 14:32:18,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:18,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1128141252, now seen corresponding path program 1 times [2025-02-06 14:32:18,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:18,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858835345] [2025-02-06 14:32:18,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:18,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:18,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 14:32:18,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 14:32:18,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:18,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:18,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:18,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:18,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858835345] [2025-02-06 14:32:18,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858835345] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:32:18,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:32:18,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 14:32:18,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915449305] [2025-02-06 14:32:18,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:32:18,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:32:18,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:18,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:32:18,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:32:18,785 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:18,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:18,855 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2025-02-06 14:32:18,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:32:18,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-06 14:32:18,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:18,856 INFO L225 Difference]: With dead ends: 24 [2025-02-06 14:32:18,856 INFO L226 Difference]: Without dead ends: 22 [2025-02-06 14:32:18,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:32:18,857 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 26 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:18,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 29 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:32:18,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-02-06 14:32:18,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2025-02-06 14:32:18,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:32:18,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2025-02-06 14:32:18,861 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 8 [2025-02-06 14:32:18,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:18,861 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2025-02-06 14:32:18,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:18,861 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2025-02-06 14:32:18,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-02-06 14:32:18,862 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:18,862 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:18,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 14:32:18,862 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 14:32:18,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:18,863 INFO L85 PathProgramCache]: Analyzing trace with hash 2023302297, now seen corresponding path program 1 times [2025-02-06 14:32:18,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:18,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719765291] [2025-02-06 14:32:18,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:18,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:18,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 14:32:18,875 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 14:32:18,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:18,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:18,982 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 14:32:18,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:18,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719765291] [2025-02-06 14:32:18,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719765291] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:32:18,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:32:18,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 14:32:18,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065089834] [2025-02-06 14:32:18,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:32:18,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:32:18,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:18,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:32:18,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:32:18,988 INFO L87 Difference]: Start difference. First operand 20 states and 23 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) [2025-02-06 14:32:19,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:19,049 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2025-02-06 14:32:19,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:32:19,049 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 23 [2025-02-06 14:32:19,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:19,050 INFO L225 Difference]: With dead ends: 34 [2025-02-06 14:32:19,050 INFO L226 Difference]: Without dead ends: 32 [2025-02-06 14:32:19,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:32:19,051 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:19,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 76 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:32:19,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-02-06 14:32:19,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2025-02-06 14:32:19,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-06 14:32:19,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2025-02-06 14:32:19,063 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 23 [2025-02-06 14:32:19,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:19,064 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2025-02-06 14:32:19,064 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) [2025-02-06 14:32:19,064 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2025-02-06 14:32:19,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-06 14:32:19,064 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:19,064 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:19,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 14:32:19,065 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 14:32:19,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:19,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1013164860, now seen corresponding path program 1 times [2025-02-06 14:32:19,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:19,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866479925] [2025-02-06 14:32:19,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:19,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:19,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 14:32:19,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 14:32:19,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:19,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:19,169 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 14:32:19,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:19,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866479925] [2025-02-06 14:32:19,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866479925] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:19,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016086649] [2025-02-06 14:32:19,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:19,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:19,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:19,172 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:19,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 14:32:19,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 14:32:19,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 14:32:19,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:19,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:19,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 14:32:19,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:19,301 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:19,303 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:19,439 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 14:32:19,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016086649] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:19,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:19,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2025-02-06 14:32:19,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841474865] [2025-02-06 14:32:19,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:19,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 14:32:19,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:19,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 14:32:19,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2025-02-06 14:32:19,443 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 15 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 7 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:32:19,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:19,963 INFO L93 Difference]: Finished difference Result 142 states and 214 transitions. [2025-02-06 14:32:19,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 14:32:19,963 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 7 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 24 [2025-02-06 14:32:19,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:19,965 INFO L225 Difference]: With dead ends: 142 [2025-02-06 14:32:19,966 INFO L226 Difference]: Without dead ends: 109 [2025-02-06 14:32:19,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2025-02-06 14:32:19,969 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 79 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:19,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 244 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 14:32:19,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2025-02-06 14:32:19,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 90. [2025-02-06 14:32:19,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 69 states have (on average 1.1014492753623188) internal successors, (76), 71 states have internal predecessors, (76), 12 states have call successors, (12), 3 states have call predecessors, (12), 7 states have return successors, (43), 15 states have call predecessors, (43), 11 states have call successors, (43) [2025-02-06 14:32:19,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 131 transitions. [2025-02-06 14:32:19,985 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 131 transitions. Word has length 24 [2025-02-06 14:32:19,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:19,985 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 131 transitions. [2025-02-06 14:32:19,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 7 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:32:19,986 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 131 transitions. [2025-02-06 14:32:19,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-02-06 14:32:19,987 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:19,987 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:19,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 14:32:20,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:20,191 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 14:32:20,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:20,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1779932149, now seen corresponding path program 2 times [2025-02-06 14:32:20,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:20,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780787654] [2025-02-06 14:32:20,192 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:32:20,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:20,197 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-02-06 14:32:20,202 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 14:32:20,203 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:32:20,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:20,313 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-02-06 14:32:20,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:20,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780787654] [2025-02-06 14:32:20,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780787654] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:20,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974839438] [2025-02-06 14:32:20,314 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:32:20,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:20,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:20,318 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:20,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 14:32:20,341 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-02-06 14:32:20,357 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 14:32:20,357 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:32:20,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:20,358 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 14:32:20,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:20,402 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-02-06 14:32:20,403 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:32:20,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974839438] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:32:20,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 14:32:20,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-02-06 14:32:20,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742814838] [2025-02-06 14:32:20,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:32:20,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:32:20,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:20,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:32:20,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-06 14:32:20,405 INFO L87 Difference]: Start difference. First operand 90 states and 131 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:32:20,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:20,439 INFO L93 Difference]: Finished difference Result 98 states and 142 transitions. [2025-02-06 14:32:20,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:32:20,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2025-02-06 14:32:20,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:20,441 INFO L225 Difference]: With dead ends: 98 [2025-02-06 14:32:20,441 INFO L226 Difference]: Without dead ends: 97 [2025-02-06 14:32:20,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-06 14:32:20,442 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 3 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:20,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 58 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:32:20,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2025-02-06 14:32:20,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 94. [2025-02-06 14:32:20,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 73 states have (on average 1.095890410958904) internal successors, (80), 73 states have internal predecessors, (80), 12 states have call successors, (12), 3 states have call predecessors, (12), 7 states have return successors, (43), 17 states have call predecessors, (43), 11 states have call successors, (43) [2025-02-06 14:32:20,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 135 transitions. [2025-02-06 14:32:20,455 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 135 transitions. Word has length 42 [2025-02-06 14:32:20,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:20,457 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 135 transitions. [2025-02-06 14:32:20,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:32:20,457 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 135 transitions. [2025-02-06 14:32:20,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-02-06 14:32:20,459 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:20,459 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:20,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 14:32:20,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:20,660 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 14:32:20,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:20,660 INFO L85 PathProgramCache]: Analyzing trace with hash -213800611, now seen corresponding path program 1 times [2025-02-06 14:32:20,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:20,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843680552] [2025-02-06 14:32:20,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:20,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:20,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 14:32:20,669 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 14:32:20,670 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:20,670 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-02-06 14:32:20,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:20,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843680552] [2025-02-06 14:32:20,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843680552] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:20,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083336657] [2025-02-06 14:32:20,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:20,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:20,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:20,760 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:20,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 14:32:20,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 14:32:20,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 14:32:20,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:20,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:20,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 14:32:20,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:20,905 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:20,905 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:21,067 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 14:32:21,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083336657] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:21,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:21,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 23 [2025-02-06 14:32:21,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597188433] [2025-02-06 14:32:21,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:21,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 14:32:21,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:21,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 14:32:21,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2025-02-06 14:32:21,069 INFO L87 Difference]: Start difference. First operand 94 states and 135 transitions. Second operand has 23 states, 21 states have (on average 3.142857142857143) internal successors, (66), 17 states have internal predecessors, (66), 11 states have call successors, (13), 8 states have call predecessors, (13), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:32:21,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:21,586 INFO L93 Difference]: Finished difference Result 336 states and 540 transitions. [2025-02-06 14:32:21,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 14:32:21,587 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.142857142857143) internal successors, (66), 17 states have internal predecessors, (66), 11 states have call successors, (13), 8 states have call predecessors, (13), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 37 [2025-02-06 14:32:21,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:21,589 INFO L225 Difference]: With dead ends: 336 [2025-02-06 14:32:21,589 INFO L226 Difference]: Without dead ends: 251 [2025-02-06 14:32:21,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=186, Invalid=870, Unknown=0, NotChecked=0, Total=1056 [2025-02-06 14:32:21,591 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 226 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:21,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 457 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:32:21,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2025-02-06 14:32:21,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 225. [2025-02-06 14:32:21,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 177 states have (on average 1.0960451977401129) internal successors, (194), 176 states have internal predecessors, (194), 28 states have call successors, (28), 8 states have call predecessors, (28), 18 states have return successors, (94), 40 states have call predecessors, (94), 27 states have call successors, (94) [2025-02-06 14:32:21,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 316 transitions. [2025-02-06 14:32:21,620 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 316 transitions. Word has length 37 [2025-02-06 14:32:21,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:21,620 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 316 transitions. [2025-02-06 14:32:21,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.142857142857143) internal successors, (66), 17 states have internal predecessors, (66), 11 states have call successors, (13), 8 states have call predecessors, (13), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:32:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 316 transitions. [2025-02-06 14:32:21,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-02-06 14:32:21,623 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:21,623 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:21,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 14:32:21,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:21,824 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 14:32:21,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:21,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1080149815, now seen corresponding path program 1 times [2025-02-06 14:32:21,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:21,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050766336] [2025-02-06 14:32:21,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:21,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:21,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-02-06 14:32:21,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-02-06 14:32:21,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:21,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:21,884 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2025-02-06 14:32:21,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:21,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050766336] [2025-02-06 14:32:21,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050766336] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:32:21,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:32:21,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 14:32:21,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276737976] [2025-02-06 14:32:21,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:32:21,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:32:21,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:21,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:32:21,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:32:21,886 INFO L87 Difference]: Start difference. First operand 225 states and 316 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) [2025-02-06 14:32:21,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:21,920 INFO L93 Difference]: Finished difference Result 252 states and 360 transitions. [2025-02-06 14:32:21,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:32:21,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2025-02-06 14:32:21,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:21,923 INFO L225 Difference]: With dead ends: 252 [2025-02-06 14:32:21,924 INFO L226 Difference]: Without dead ends: 251 [2025-02-06 14:32:21,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:32:21,925 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 75 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 [2025-02-06 14:32:21,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 75 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:32:21,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2025-02-06 14:32:21,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 236. [2025-02-06 14:32:21,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 186 states have (on average 1.0913978494623655) internal successors, (203), 184 states have internal predecessors, (203), 30 states have call successors, (30), 8 states have call predecessors, (30), 18 states have return successors, (106), 43 states have call predecessors, (106), 29 states have call successors, (106) [2025-02-06 14:32:21,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 339 transitions. [2025-02-06 14:32:21,953 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 339 transitions. Word has length 56 [2025-02-06 14:32:21,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:21,953 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 339 transitions. [2025-02-06 14:32:21,953 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) [2025-02-06 14:32:21,954 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 339 transitions. [2025-02-06 14:32:21,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-06 14:32:21,959 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:21,960 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 7, 7, 7, 7, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:21,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 14:32:21,960 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 14:32:21,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:21,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1582837461, now seen corresponding path program 1 times [2025-02-06 14:32:21,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:21,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479167388] [2025-02-06 14:32:21,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:21,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:21,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-06 14:32:21,975 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-06 14:32:21,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:21,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:22,052 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2025-02-06 14:32:22,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:22,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479167388] [2025-02-06 14:32:22,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479167388] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:22,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920235491] [2025-02-06 14:32:22,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:22,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:22,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:22,055 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:22,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 14:32:22,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-06 14:32:22,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-06 14:32:22,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:22,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:22,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 14:32:22,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:22,291 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 100 proven. 91 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-06 14:32:22,291 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:22,525 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 100 proven. 91 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-06 14:32:22,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920235491] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:22,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:22,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 17, 17] total 21 [2025-02-06 14:32:22,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798212500] [2025-02-06 14:32:22,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:22,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-06 14:32:22,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:22,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-06 14:32:22,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2025-02-06 14:32:22,528 INFO L87 Difference]: Start difference. First operand 236 states and 339 transitions. Second operand has 21 states, 20 states have (on average 3.65) internal successors, (73), 15 states have internal predecessors, (73), 10 states have call successors, (14), 7 states have call predecessors, (14), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2025-02-06 14:32:22,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:22,963 INFO L93 Difference]: Finished difference Result 437 states and 657 transitions. [2025-02-06 14:32:22,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-06 14:32:22,964 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.65) internal successors, (73), 15 states have internal predecessors, (73), 10 states have call successors, (14), 7 states have call predecessors, (14), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 74 [2025-02-06 14:32:22,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:22,965 INFO L225 Difference]: With dead ends: 437 [2025-02-06 14:32:22,966 INFO L226 Difference]: Without dead ends: 222 [2025-02-06 14:32:22,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 122 SyntacticMatches, 14 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=926, Unknown=0, NotChecked=0, Total=1260 [2025-02-06 14:32:22,969 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 260 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:22,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 138 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:32:22,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2025-02-06 14:32:22,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 196. [2025-02-06 14:32:22,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 153 states have (on average 1.0849673202614378) internal successors, (166), 155 states have internal predecessors, (166), 25 states have call successors, (25), 8 states have call predecessors, (25), 16 states have return successors, (48), 32 states have call predecessors, (48), 24 states have call successors, (48) [2025-02-06 14:32:22,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 239 transitions. [2025-02-06 14:32:22,986 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 239 transitions. Word has length 74 [2025-02-06 14:32:22,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:22,986 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 239 transitions. [2025-02-06 14:32:22,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.65) internal successors, (73), 15 states have internal predecessors, (73), 10 states have call successors, (14), 7 states have call predecessors, (14), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2025-02-06 14:32:22,987 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 239 transitions. [2025-02-06 14:32:22,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-02-06 14:32:22,988 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:22,988 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:22,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 14:32:23,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-06 14:32:23,192 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 14:32:23,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:23,193 INFO L85 PathProgramCache]: Analyzing trace with hash 693465773, now seen corresponding path program 1 times [2025-02-06 14:32:23,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:23,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313613154] [2025-02-06 14:32:23,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:23,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:23,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 14:32:23,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 14:32:23,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:23,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-02-06 14:32:23,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:23,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313613154] [2025-02-06 14:32:23,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313613154] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:23,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23187860] [2025-02-06 14:32:23,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:23,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:23,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:23,314 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:23,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 14:32:23,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 14:32:23,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 14:32:23,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:23,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:23,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 14:32:23,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:23,410 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2025-02-06 14:32:23,411 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:23,544 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2025-02-06 14:32:23,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23187860] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:23,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:23,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 15 [2025-02-06 14:32:23,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486985297] [2025-02-06 14:32:23,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:23,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-06 14:32:23,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:23,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-06 14:32:23,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2025-02-06 14:32:23,558 INFO L87 Difference]: Start difference. First operand 196 states and 239 transitions. Second operand has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (9), 9 states have call predecessors, (9), 4 states have call successors, (9) [2025-02-06 14:32:23,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:23,648 INFO L93 Difference]: Finished difference Result 206 states and 251 transitions. [2025-02-06 14:32:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-06 14:32:23,648 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (9), 9 states have call predecessors, (9), 4 states have call successors, (9) Word has length 69 [2025-02-06 14:32:23,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:23,649 INFO L225 Difference]: With dead ends: 206 [2025-02-06 14:32:23,649 INFO L226 Difference]: Without dead ends: 204 [2025-02-06 14:32:23,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2025-02-06 14:32:23,650 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 6 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:23,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 178 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:32:23,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2025-02-06 14:32:23,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 196. [2025-02-06 14:32:23,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 153 states have (on average 1.0718954248366013) internal successors, (164), 155 states have internal predecessors, (164), 25 states have call successors, (25), 8 states have call predecessors, (25), 16 states have return successors, (48), 32 states have call predecessors, (48), 24 states have call successors, (48) [2025-02-06 14:32:23,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 237 transitions. [2025-02-06 14:32:23,664 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 237 transitions. Word has length 69 [2025-02-06 14:32:23,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:23,665 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 237 transitions. [2025-02-06 14:32:23,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (9), 9 states have call predecessors, (9), 4 states have call successors, (9) [2025-02-06 14:32:23,665 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 237 transitions. [2025-02-06 14:32:23,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-02-06 14:32:23,666 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:23,666 INFO L218 NwaCegarLoop]: trace histogram [11, 8, 7, 7, 7, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 14:32:23,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 14:32:23,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:23,866 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 14:32:23,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:23,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1181779696, now seen corresponding path program 2 times [2025-02-06 14:32:23,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:23,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244024380] [2025-02-06 14:32:23,867 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:32:23,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:23,871 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 86 statements into 2 equivalence classes. [2025-02-06 14:32:23,877 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 86 of 86 statements. [2025-02-06 14:32:23,878 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:32:23,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:24,060 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 93 proven. 111 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-06 14:32:24,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:24,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244024380] [2025-02-06 14:32:24,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244024380] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:24,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602912461] [2025-02-06 14:32:24,061 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:32:24,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:24,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:24,063 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:24,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 14:32:24,084 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 86 statements into 2 equivalence classes. [2025-02-06 14:32:24,122 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 86 of 86 statements. [2025-02-06 14:32:24,123 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:32:24,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:24,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 14:32:24,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:24,210 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2025-02-06 14:32:24,210 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:24,370 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 2 proven. 31 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2025-02-06 14:32:24,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602912461] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:24,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:24,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 6, 5] total 25 [2025-02-06 14:32:24,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480266081] [2025-02-06 14:32:24,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:24,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-02-06 14:32:24,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:24,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-02-06 14:32:24,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2025-02-06 14:32:24,372 INFO L87 Difference]: Start difference. First operand 196 states and 237 transitions. Second operand has 25 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 20 states have internal predecessors, (80), 10 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2025-02-06 14:32:25,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:25,320 INFO L93 Difference]: Finished difference Result 373 states and 482 transitions. [2025-02-06 14:32:25,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2025-02-06 14:32:25,320 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 20 states have internal predecessors, (80), 10 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) Word has length 86 [2025-02-06 14:32:25,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:25,322 INFO L225 Difference]: With dead ends: 373 [2025-02-06 14:32:25,322 INFO L226 Difference]: Without dead ends: 198 [2025-02-06 14:32:25,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 164 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1080 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1150, Invalid=3680, Unknown=0, NotChecked=0, Total=4830 [2025-02-06 14:32:25,325 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 348 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:25,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 83 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:32:25,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2025-02-06 14:32:25,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 126. [2025-02-06 14:32:25,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 99 states have (on average 1.0505050505050506) internal successors, (104), 101 states have internal predecessors, (104), 17 states have call successors, (17), 8 states have call predecessors, (17), 9 states have return successors, (19), 16 states have call predecessors, (19), 16 states have call successors, (19) [2025-02-06 14:32:25,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 140 transitions. [2025-02-06 14:32:25,337 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 140 transitions. Word has length 86 [2025-02-06 14:32:25,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:25,338 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 140 transitions. [2025-02-06 14:32:25,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 20 states have internal predecessors, (80), 10 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2025-02-06 14:32:25,338 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 140 transitions. [2025-02-06 14:32:25,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-02-06 14:32:25,339 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:25,339 INFO L218 NwaCegarLoop]: trace histogram [17, 14, 14, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 3, 1, 1, 1, 1] [2025-02-06 14:32:25,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 14:32:25,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-06 14:32:25,540 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 14:32:25,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:25,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1534683183, now seen corresponding path program 2 times [2025-02-06 14:32:25,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:25,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633830277] [2025-02-06 14:32:25,541 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:32:25,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:25,546 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 155 statements into 2 equivalence classes. [2025-02-06 14:32:25,564 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 155 of 155 statements. [2025-02-06 14:32:25,565 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:32:25,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:26,112 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 78 proven. 189 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2025-02-06 14:32:26,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:26,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633830277] [2025-02-06 14:32:26,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633830277] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:26,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800638725] [2025-02-06 14:32:26,113 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:32:26,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:26,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:26,115 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:26,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 14:32:26,149 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 155 statements into 2 equivalence classes. [2025-02-06 14:32:26,181 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 155 of 155 statements. [2025-02-06 14:32:26,181 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:32:26,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:26,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-02-06 14:32:26,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:26,391 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 78 proven. 135 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2025-02-06 14:32:26,391 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:27,328 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 144 proven. 128 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2025-02-06 14:32:27,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800638725] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:27,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:27,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 17] total 31 [2025-02-06 14:32:27,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129186536] [2025-02-06 14:32:27,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:27,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-02-06 14:32:27,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:27,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-02-06 14:32:27,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=760, Unknown=0, NotChecked=0, Total=992 [2025-02-06 14:32:27,332 INFO L87 Difference]: Start difference. First operand 126 states and 140 transitions. Second operand has 32 states, 31 states have (on average 2.7096774193548385) internal successors, (84), 32 states have internal predecessors, (84), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (21), 21 states have call predecessors, (21), 8 states have call successors, (21) [2025-02-06 14:32:27,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:27,437 INFO L93 Difference]: Finished difference Result 152 states and 170 transitions. [2025-02-06 14:32:27,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 14:32:27,437 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.7096774193548385) internal successors, (84), 32 states have internal predecessors, (84), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (21), 21 states have call predecessors, (21), 8 states have call successors, (21) Word has length 155 [2025-02-06 14:32:27,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:27,438 INFO L225 Difference]: With dead ends: 152 [2025-02-06 14:32:27,438 INFO L226 Difference]: Without dead ends: 151 [2025-02-06 14:32:27,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 294 SyntacticMatches, 13 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=857, Unknown=0, NotChecked=0, Total=1122 [2025-02-06 14:32:27,439 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 6 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:27,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 267 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:32:27,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2025-02-06 14:32:27,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 126. [2025-02-06 14:32:27,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 99 states have (on average 1.02020202020202) internal successors, (101), 101 states have internal predecessors, (101), 17 states have call successors, (17), 8 states have call predecessors, (17), 9 states have return successors, (19), 16 states have call predecessors, (19), 16 states have call successors, (19) [2025-02-06 14:32:27,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 137 transitions. [2025-02-06 14:32:27,446 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 137 transitions. Word has length 155 [2025-02-06 14:32:27,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:27,447 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 137 transitions. [2025-02-06 14:32:27,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.7096774193548385) internal successors, (84), 32 states have internal predecessors, (84), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (21), 21 states have call predecessors, (21), 8 states have call successors, (21) [2025-02-06 14:32:27,447 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 137 transitions. [2025-02-06 14:32:27,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2025-02-06 14:32:27,452 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:27,452 INFO L218 NwaCegarLoop]: trace histogram [41, 40, 33, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 13, 8, 1, 1, 1, 1] [2025-02-06 14:32:27,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-06 14:32:27,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:27,653 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-06 14:32:27,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:27,653 INFO L85 PathProgramCache]: Analyzing trace with hash -912070000, now seen corresponding path program 3 times [2025-02-06 14:32:27,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:27,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858993501] [2025-02-06 14:32:27,654 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:32:27,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:27,666 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 398 statements into 29 equivalence classes. [2025-02-06 14:32:27,724 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) and asserted 398 of 398 statements. [2025-02-06 14:32:27,724 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2025-02-06 14:32:27,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:29,887 INFO L134 CoverageAnalysis]: Checked inductivity of 5628 backedges. 850 proven. 1485 refuted. 0 times theorem prover too weak. 3293 trivial. 0 not checked. [2025-02-06 14:32:29,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:29,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858993501] [2025-02-06 14:32:29,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858993501] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:29,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818455788] [2025-02-06 14:32:29,888 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:32:29,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:29,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:29,890 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:29,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 14:32:29,942 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 398 statements into 29 equivalence classes. [2025-02-06 14:32:30,024 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) and asserted 398 of 398 statements. [2025-02-06 14:32:30,024 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2025-02-06 14:32:30,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:30,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 81 conjuncts are in the unsatisfiable core [2025-02-06 14:32:30,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 5628 backedges. 820 proven. 1112 refuted. 0 times theorem prover too weak. 3696 trivial. 0 not checked. [2025-02-06 14:32:30,373 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:35,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5628 backedges. 1149 proven. 1015 refuted. 0 times theorem prover too weak. 3464 trivial. 0 not checked. [2025-02-06 14:32:35,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818455788] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:35,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:35,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18, 29] total 46 [2025-02-06 14:32:35,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193754373] [2025-02-06 14:32:35,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:35,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2025-02-06 14:32:35,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:35,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2025-02-06 14:32:35,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=495, Invalid=1667, Unknown=0, NotChecked=0, Total=2162 [2025-02-06 14:32:35,353 INFO L87 Difference]: Start difference. First operand 126 states and 137 transitions. Second operand has 47 states, 46 states have (on average 2.630434782608696) internal successors, (121), 47 states have internal predecessors, (121), 12 states have call successors, (13), 1 states have call predecessors, (13), 13 states have return successors, (32), 32 states have call predecessors, (32), 12 states have call successors, (32) [2025-02-06 14:32:35,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:35,437 INFO L93 Difference]: Finished difference Result 151 states and 167 transitions. [2025-02-06 14:32:35,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-06 14:32:35,438 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 2.630434782608696) internal successors, (121), 47 states have internal predecessors, (121), 12 states have call successors, (13), 1 states have call predecessors, (13), 13 states have return successors, (32), 32 states have call predecessors, (32), 12 states have call successors, (32) Word has length 398 [2025-02-06 14:32:35,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:35,439 INFO L225 Difference]: With dead ends: 151 [2025-02-06 14:32:35,439 INFO L226 Difference]: Without dead ends: 0 [2025-02-06 14:32:35,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 779 SyntacticMatches, 51 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2548 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=525, Invalid=1731, Unknown=0, NotChecked=0, Total=2256 [2025-02-06 14:32:35,441 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:35,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 177 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:32:35,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-06 14:32:35,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-06 14:32:35,442 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) [2025-02-06 14:32:35,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-06 14:32:35,442 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 398 [2025-02-06 14:32:35,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:35,442 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 14:32:35,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 2.630434782608696) internal successors, (121), 47 states have internal predecessors, (121), 12 states have call successors, (13), 1 states have call predecessors, (13), 13 states have return successors, (32), 32 states have call predecessors, (32), 12 states have call successors, (32) [2025-02-06 14:32:35,442 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-06 14:32:35,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-06 14:32:35,444 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2025-02-06 14:32:35,446 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2025-02-06 14:32:35,446 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2025-02-06 14:32:35,446 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2025-02-06 14:32:35,446 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2025-02-06 14:32:35,447 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2025-02-06 14:32:35,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 14:32:35,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:35,650 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 14:32:35,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-06 14:32:36,513 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 14:32:36,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 02:32:36 BoogieIcfgContainer [2025-02-06 14:32:36,519 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 14:32:36,519 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 14:32:36,519 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 14:32:36,519 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 14:32:36,520 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:32:18" (3/4) ... [2025-02-06 14:32:36,521 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 14:32:36,526 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure fibo [2025-02-06 14:32:36,529 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-06 14:32:36,529 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-06 14:32:36,529 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 14:32:36,529 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 14:32:36,576 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 14:32:36,577 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 14:32:36,577 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 14:32:36,578 INFO L158 Benchmark]: Toolchain (without parser) took 18594.41ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 107.1MB in the beginning and 229.6MB in the end (delta: -122.5MB). Peak memory consumption was 279.4MB. Max. memory is 16.1GB. [2025-02-06 14:32:36,578 INFO L158 Benchmark]: CDTParser took 1.42ms. Allocated memory is still 201.3MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 14:32:36,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 141.32ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 95.9MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 14:32:36,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.03ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 94.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 14:32:36,578 INFO L158 Benchmark]: Boogie Preprocessor took 16.81ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 93.9MB in the end (delta: 914.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 14:32:36,579 INFO L158 Benchmark]: IcfgBuilder took 213.96ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 83.4MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 14:32:36,579 INFO L158 Benchmark]: TraceAbstraction took 18140.59ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 82.3MB in the beginning and 233.9MB in the end (delta: -151.6MB). Peak memory consumption was 298.4MB. Max. memory is 16.1GB. [2025-02-06 14:32:36,579 INFO L158 Benchmark]: Witness Printer took 58.04ms. Allocated memory is still 545.3MB. Free memory was 233.9MB in the beginning and 229.6MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 14:32:36,581 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.42ms. Allocated memory is still 201.3MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 141.32ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 95.9MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.03ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 94.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.81ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 93.9MB in the end (delta: 914.8kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 213.96ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 83.4MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 18140.59ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 82.3MB in the beginning and 233.9MB in the end (delta: -151.6MB). Peak memory consumption was 298.4MB. Max. memory is 16.1GB. * Witness Printer took 58.04ms. Allocated memory is still 545.3MB. Free memory was 233.9MB in the beginning and 229.6MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 17.2s, OverallIterations: 12, TraceHistogramMax: 41, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 996 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 972 mSDsluCounter, 1824 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1532 mSDsCounter, 307 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2842 IncrementalHoareTripleChecker+Invalid, 3149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 307 mSolverCounterUnsat, 292 mSDtfsCounter, 2842 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1993 GetRequests, 1638 SyntacticMatches, 85 SemanticMatches, 270 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4904 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=7, InterpolantAutomatonStates: 197, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 201 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 1864 NumberOfCodeBlocks, 1864 NumberOfCodeBlocksAsserted, 82 NumberOfCheckSat, 2680 ConstructedInterpolants, 0 QuantifiedInterpolants, 6266 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1783 ConjunctsInSsa, 163 ConjunctsInUnsatCore, 27 InterpolantComputations, 5 PerfectInterpolantSequences, 17007/21544 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 14:32:36,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE