./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 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_2calls_5-2.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 eb57cc67b4a5d1052a722feccb00a81098424cf4bc0bbd7bfe756405ab740d43 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 02:32:05,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 02:32:05,888 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 02:32:05,891 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 02:32:05,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 02:32:05,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 02:32:05,923 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 02:32:05,923 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 02:32:05,923 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 02:32:05,923 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 02:32:05,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 02:32:05,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 02:32:05,923 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 02:32:05,924 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 02:32:05,924 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 02:32:05,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:32:05,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 02:32:05,925 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 02:32:05,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 02:32:05,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 02:32:05,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:32:05,925 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 02:32:05,925 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 02:32:05,925 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 02:32:05,925 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 02:32:05,925 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 02:32:05,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 02:32:05,925 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 02:32:05,925 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 02:32:05,925 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 02:32:05,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 02:32:05,925 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 -> eb57cc67b4a5d1052a722feccb00a81098424cf4bc0bbd7bfe756405ab740d43 [2025-01-10 02:32:06,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 02:32:06,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 02:32:06,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 02:32:06,183 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 02:32:06,183 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 02:32:06,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c [2025-01-10 02:32:07,378 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/210f2e925/f999841d3e0c4998a3157e56c777b844/FLAG47197701c [2025-01-10 02:32:07,581 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 02:32:07,581 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c [2025-01-10 02:32:07,596 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/210f2e925/f999841d3e0c4998a3157e56c777b844/FLAG47197701c [2025-01-10 02:32:07,932 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/210f2e925/f999841d3e0c4998a3157e56c777b844 [2025-01-10 02:32:07,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 02:32:07,934 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 02:32:07,935 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 02:32:07,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 02:32:07,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 02:32:07,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:32:07" (1/1) ... [2025-01-10 02:32:07,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2733f547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:07, skipping insertion in model container [2025-01-10 02:32:07,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:32:07" (1/1) ... [2025-01-10 02:32:07,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 02:32:08,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 02:32:08,058 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 02:32:08,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 02:32:08,077 INFO L204 MainTranslator]: Completed translation [2025-01-10 02:32:08,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08 WrapperNode [2025-01-10 02:32:08,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 02:32:08,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 02:32:08,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 02:32:08,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 02:32:08,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08" (1/1) ... [2025-01-10 02:32:08,087 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08" (1/1) ... [2025-01-10 02:32:08,096 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2025-01-10 02:32:08,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 02:32:08,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 02:32:08,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 02:32:08,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 02:32:08,104 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08" (1/1) ... [2025-01-10 02:32:08,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08" (1/1) ... [2025-01-10 02:32:08,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08" (1/1) ... [2025-01-10 02:32:08,113 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]. [2025-01-10 02:32:08,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08" (1/1) ... [2025-01-10 02:32:08,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08" (1/1) ... [2025-01-10 02:32:08,115 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08" (1/1) ... [2025-01-10 02:32:08,116 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08" (1/1) ... [2025-01-10 02:32:08,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08" (1/1) ... [2025-01-10 02:32:08,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08" (1/1) ... [2025-01-10 02:32:08,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08" (1/1) ... [2025-01-10 02:32:08,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 02:32:08,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 02:32:08,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 02:32:08,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 02:32:08,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08" (1/1) ... [2025-01-10 02:32:08,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:32:08,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:08,167 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) [2025-01-10 02:32:08,173 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 [2025-01-10 02:32:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 02:32:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 02:32:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2025-01-10 02:32:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2025-01-10 02:32:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2025-01-10 02:32:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2025-01-10 02:32:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 02:32:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 02:32:08,227 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 02:32:08,229 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 02:32:08,315 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2025-01-10 02:32:08,316 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 02:32:08,322 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 02:32:08,323 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 02:32:08,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:32:08 BoogieIcfgContainer [2025-01-10 02:32:08,323 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 02:32:08,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 02:32:08,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 02:32:08,328 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 02:32:08,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:32:07" (1/3) ... [2025-01-10 02:32:08,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b16d0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:32:08, skipping insertion in model container [2025-01-10 02:32:08,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:08" (2/3) ... [2025-01-10 02:32:08,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b16d0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:32:08, skipping insertion in model container [2025-01-10 02:32:08,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:32:08" (3/3) ... [2025-01-10 02:32:08,330 INFO L128 eAbstractionObserver]: Analyzing ICFG fibo_2calls_5-2.c [2025-01-10 02:32:08,342 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 02:32:08,343 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fibo_2calls_5-2.c that has 3 procedures, 53 locations, 1 initial locations, 0 loop locations, and 12 error locations. [2025-01-10 02:32:08,385 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 02:32:08,392 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;@60107dbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 02:32:08,393 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2025-01-10 02:32:08,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 45 states have internal predecessors, (50), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-01-10 02:32:08,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-01-10 02:32:08,398 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:08,399 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:08,399 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:08,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:08,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1867028009, now seen corresponding path program 1 times [2025-01-10 02:32:08,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:08,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868704960] [2025-01-10 02:32:08,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:08,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:08,448 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 02:32:08,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 02:32:08,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:08,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:32:08,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:08,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868704960] [2025-01-10 02:32:08,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868704960] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:08,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:32:08,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 02:32:08,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242382060] [2025-01-10 02:32:08,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:08,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 02:32:08,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:08,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 02:32:08,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 02:32:08,520 INFO L87 Difference]: Start difference. First operand has 53 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 45 states have internal predecessors, (50), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:32:08,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:08,549 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2025-01-10 02:32:08,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 02:32:08,551 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 [2025-01-10 02:32:08,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:08,555 INFO L225 Difference]: With dead ends: 59 [2025-01-10 02:32:08,556 INFO L226 Difference]: Without dead ends: 45 [2025-01-10 02:32:08,558 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 [2025-01-10 02:32:08,559 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 11 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:08,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 92 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:32:08,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2025-01-10 02:32:08,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2025-01-10 02:32:08,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 36 states have internal predecessors, (40), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-01-10 02:32:08,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2025-01-10 02:32:08,590 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 7 [2025-01-10 02:32:08,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:08,590 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2025-01-10 02:32:08,591 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) [2025-01-10 02:32:08,591 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2025-01-10 02:32:08,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-10 02:32:08,591 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:08,591 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:08,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 02:32:08,592 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:08,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:08,592 INFO L85 PathProgramCache]: Analyzing trace with hash 2043293518, now seen corresponding path program 1 times [2025-01-10 02:32:08,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:08,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110631143] [2025-01-10 02:32:08,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:08,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:08,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 02:32:08,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 02:32:08,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:08,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:08,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:32:08,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:08,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110631143] [2025-01-10 02:32:08,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110631143] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:08,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:32:08,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 02:32:08,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292286923] [2025-01-10 02:32:08,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:08,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 02:32:08,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:08,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 02:32:08,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:32:08,664 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:32:08,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:08,746 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2025-01-10 02:32:08,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 02:32:08,746 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 [2025-01-10 02:32:08,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:08,747 INFO L225 Difference]: With dead ends: 64 [2025-01-10 02:32:08,747 INFO L226 Difference]: Without dead ends: 58 [2025-01-10 02:32:08,747 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 [2025-01-10 02:32:08,747 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 26 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:08,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 164 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:32:08,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2025-01-10 02:32:08,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2025-01-10 02:32:08,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 46 states have internal predecessors, (52), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-10 02:32:08,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2025-01-10 02:32:08,754 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 8 [2025-01-10 02:32:08,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:08,754 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2025-01-10 02:32:08,754 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) [2025-01-10 02:32:08,754 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2025-01-10 02:32:08,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-10 02:32:08,755 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:08,755 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:08,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 02:32:08,755 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:08,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:08,755 INFO L85 PathProgramCache]: Analyzing trace with hash -749725533, now seen corresponding path program 1 times [2025-01-10 02:32:08,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:08,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381669940] [2025-01-10 02:32:08,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:08,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:08,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 02:32:08,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 02:32:08,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:08,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:08,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:32:08,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:08,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381669940] [2025-01-10 02:32:08,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381669940] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:08,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:32:08,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 02:32:08,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480625746] [2025-01-10 02:32:08,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:08,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 02:32:08,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:08,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 02:32:08,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 02:32:08,791 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:32:08,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:08,809 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2025-01-10 02:32:08,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 02:32:08,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-01-10 02:32:08,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:08,810 INFO L225 Difference]: With dead ends: 58 [2025-01-10 02:32:08,810 INFO L226 Difference]: Without dead ends: 56 [2025-01-10 02:32:08,810 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 [2025-01-10 02:32:08,811 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 11 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:08,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 72 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:32:08,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-01-10 02:32:08,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2025-01-10 02:32:08,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 44 states have internal predecessors, (50), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-10 02:32:08,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2025-01-10 02:32:08,817 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 13 [2025-01-10 02:32:08,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:08,817 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2025-01-10 02:32:08,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:32:08,817 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2025-01-10 02:32:08,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-01-10 02:32:08,818 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:08,818 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:08,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 02:32:08,818 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:08,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:08,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1766654982, now seen corresponding path program 1 times [2025-01-10 02:32:08,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:08,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116982539] [2025-01-10 02:32:08,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:08,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:08,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 02:32:08,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 02:32:08,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:08,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:08,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:32:08,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:08,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116982539] [2025-01-10 02:32:08,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116982539] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:08,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:32:08,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 02:32:08,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800869595] [2025-01-10 02:32:08,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:08,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 02:32:08,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:08,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 02:32:08,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-10 02:32:08,917 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:32:09,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:09,029 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2025-01-10 02:32:09,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 02:32:09,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-01-10 02:32:09,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:09,030 INFO L225 Difference]: With dead ends: 58 [2025-01-10 02:32:09,030 INFO L226 Difference]: Without dead ends: 54 [2025-01-10 02:32:09,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-10 02:32:09,031 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 51 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:09,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 102 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:32:09,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2025-01-10 02:32:09,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2025-01-10 02:32:09,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 40 states have internal predecessors, (46), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-10 02:32:09,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2025-01-10 02:32:09,042 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 14 [2025-01-10 02:32:09,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:09,043 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2025-01-10 02:32:09,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 02:32:09,044 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2025-01-10 02:32:09,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-01-10 02:32:09,045 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:09,045 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:09,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 02:32:09,045 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:09,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:09,046 INFO L85 PathProgramCache]: Analyzing trace with hash 2097999453, now seen corresponding path program 1 times [2025-01-10 02:32:09,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:09,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910768079] [2025-01-10 02:32:09,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:09,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:09,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-10 02:32:09,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-10 02:32:09,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:09,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:09,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-10 02:32:09,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:09,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910768079] [2025-01-10 02:32:09,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910768079] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:09,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:32:09,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 02:32:09,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210062949] [2025-01-10 02:32:09,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:09,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 02:32:09,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:09,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 02:32:09,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:32:09,145 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:32:09,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:09,171 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2025-01-10 02:32:09,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 02:32:09,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2025-01-10 02:32:09,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:09,172 INFO L225 Difference]: With dead ends: 74 [2025-01-10 02:32:09,172 INFO L226 Difference]: Without dead ends: 69 [2025-01-10 02:32:09,173 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 [2025-01-10 02:32:09,173 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 4 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:09,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:32:09,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2025-01-10 02:32:09,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2025-01-10 02:32:09,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 50 states have internal predecessors, (56), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (13), 9 states have call predecessors, (13), 8 states have call successors, (13) [2025-01-10 02:32:09,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions. [2025-01-10 02:32:09,180 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 78 transitions. Word has length 23 [2025-01-10 02:32:09,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:09,180 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 78 transitions. [2025-01-10 02:32:09,180 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) [2025-01-10 02:32:09,180 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2025-01-10 02:32:09,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-01-10 02:32:09,181 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:09,181 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:09,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 02:32:09,181 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:09,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:09,181 INFO L85 PathProgramCache]: Analyzing trace with hash 624421350, now seen corresponding path program 1 times [2025-01-10 02:32:09,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:09,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918851123] [2025-01-10 02:32:09,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:09,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:09,185 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-10 02:32:09,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-10 02:32:09,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:09,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:09,246 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 02:32:09,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:09,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918851123] [2025-01-10 02:32:09,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918851123] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:09,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455688135] [2025-01-10 02:32:09,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:09,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:09,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:09,252 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) [2025-01-10 02:32:09,253 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 [2025-01-10 02:32:09,273 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-10 02:32:09,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-10 02:32:09,281 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:09,281 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:09,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 02:32:09,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:32:09,344 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:32:09,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455688135] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:09,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:32:09,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2025-01-10 02:32:09,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341303471] [2025-01-10 02:32:09,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:09,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 02:32:09,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:09,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 02:32:09,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-01-10 02:32:09,345 INFO L87 Difference]: Start difference. First operand 63 states and 78 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:32:09,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:09,423 INFO L93 Difference]: Finished difference Result 113 states and 140 transitions. [2025-01-10 02:32:09,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 02:32:09,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2025-01-10 02:32:09,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:09,424 INFO L225 Difference]: With dead ends: 113 [2025-01-10 02:32:09,424 INFO L226 Difference]: Without dead ends: 63 [2025-01-10 02:32:09,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-01-10 02:32:09,425 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 32 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:09,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 153 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:32:09,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2025-01-10 02:32:09,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2025-01-10 02:32:09,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 47 states have internal predecessors, (53), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2025-01-10 02:32:09,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2025-01-10 02:32:09,431 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 24 [2025-01-10 02:32:09,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:09,431 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2025-01-10 02:32:09,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:32:09,431 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2025-01-10 02:32:09,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-01-10 02:32:09,431 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:09,431 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:09,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 02:32:09,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:09,633 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:09,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:09,633 INFO L85 PathProgramCache]: Analyzing trace with hash 120521327, now seen corresponding path program 1 times [2025-01-10 02:32:09,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:09,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879645910] [2025-01-10 02:32:09,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:09,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:09,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 02:32:09,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 02:32:09,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:09,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:09,683 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-10 02:32:09,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:09,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879645910] [2025-01-10 02:32:09,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879645910] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:09,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:32:09,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 02:32:09,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142116802] [2025-01-10 02:32:09,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:09,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 02:32:09,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:09,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 02:32:09,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:32:09,685 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:32:09,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:09,715 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2025-01-10 02:32:09,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 02:32:09,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-01-10 02:32:09,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:09,716 INFO L225 Difference]: With dead ends: 83 [2025-01-10 02:32:09,716 INFO L226 Difference]: Without dead ends: 78 [2025-01-10 02:32:09,716 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 [2025-01-10 02:32:09,717 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 3 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:09,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 151 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:32:09,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2025-01-10 02:32:09,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2025-01-10 02:32:09,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 55 states have internal predecessors, (60), 10 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (19), 10 states have call predecessors, (19), 9 states have call successors, (19) [2025-01-10 02:32:09,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2025-01-10 02:32:09,723 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 25 [2025-01-10 02:32:09,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:09,723 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2025-01-10 02:32:09,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:32:09,724 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2025-01-10 02:32:09,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-01-10 02:32:09,724 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:09,724 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, 1, 1, 1, 1, 1] [2025-01-10 02:32:09,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 02:32:09,725 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:09,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:09,725 INFO L85 PathProgramCache]: Analyzing trace with hash -473230649, now seen corresponding path program 1 times [2025-01-10 02:32:09,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:09,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580764682] [2025-01-10 02:32:09,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:09,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:09,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-10 02:32:09,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-10 02:32:09,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:09,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-10 02:32:09,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:09,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580764682] [2025-01-10 02:32:09,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580764682] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:09,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:32:09,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 02:32:09,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975093951] [2025-01-10 02:32:09,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:09,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 02:32:09,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:09,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 02:32:09,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:32:09,780 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:32:09,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:09,809 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2025-01-10 02:32:09,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 02:32:09,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2025-01-10 02:32:09,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:09,810 INFO L225 Difference]: With dead ends: 83 [2025-01-10 02:32:09,810 INFO L226 Difference]: Without dead ends: 81 [2025-01-10 02:32:09,811 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 [2025-01-10 02:32:09,811 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 3 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:09,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 156 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:32:09,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2025-01-10 02:32:09,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2025-01-10 02:32:09,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 58 states have (on average 1.1551724137931034) internal successors, (67), 62 states have internal predecessors, (67), 11 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (23), 12 states have call predecessors, (23), 10 states have call successors, (23) [2025-01-10 02:32:09,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2025-01-10 02:32:09,817 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 29 [2025-01-10 02:32:09,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:09,818 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2025-01-10 02:32:09,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:32:09,818 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2025-01-10 02:32:09,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-01-10 02:32:09,819 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:09,819 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, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:09,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 02:32:09,819 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:09,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:09,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1773385638, now seen corresponding path program 1 times [2025-01-10 02:32:09,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:09,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018497983] [2025-01-10 02:32:09,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:09,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:09,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 02:32:09,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 02:32:09,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:09,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:09,888 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-01-10 02:32:09,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:09,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018497983] [2025-01-10 02:32:09,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018497983] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:09,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334278146] [2025-01-10 02:32:09,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:09,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:09,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:09,892 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) [2025-01-10 02:32:09,893 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 [2025-01-10 02:32:09,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 02:32:09,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 02:32:09,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:09,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:09,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 02:32:09,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:09,992 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:32:09,992 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:32:10,115 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 02:32:10,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334278146] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:32:10,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:32:10,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2025-01-10 02:32:10,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096025632] [2025-01-10 02:32:10,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:32:10,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-01-10 02:32:10,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:10,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-01-10 02:32:10,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2025-01-10 02:32:10,117 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2025-01-10 02:32:10,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:10,541 INFO L93 Difference]: Finished difference Result 204 states and 275 transitions. [2025-01-10 02:32:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-10 02:32:10,542 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 30 [2025-01-10 02:32:10,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:10,544 INFO L225 Difference]: With dead ends: 204 [2025-01-10 02:32:10,544 INFO L226 Difference]: Without dead ends: 135 [2025-01-10 02:32:10,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2025-01-10 02:32:10,546 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 130 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:10,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 557 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 02:32:10,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2025-01-10 02:32:10,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 121. [2025-01-10 02:32:10,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 97 states have internal predecessors, (107), 16 states have call successors, (16), 6 states have call predecessors, (16), 9 states have return successors, (35), 17 states have call predecessors, (35), 15 states have call successors, (35) [2025-01-10 02:32:10,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 158 transitions. [2025-01-10 02:32:10,572 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 158 transitions. Word has length 30 [2025-01-10 02:32:10,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:10,572 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 158 transitions. [2025-01-10 02:32:10,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2025-01-10 02:32:10,572 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 158 transitions. [2025-01-10 02:32:10,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-01-10 02:32:10,573 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:10,573 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:10,581 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 [2025-01-10 02:32:10,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:10,774 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:10,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:10,775 INFO L85 PathProgramCache]: Analyzing trace with hash -463506674, now seen corresponding path program 2 times [2025-01-10 02:32:10,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:10,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783913759] [2025-01-10 02:32:10,776 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 02:32:10,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:10,780 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-01-10 02:32:10,786 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 42 of 42 statements. [2025-01-10 02:32:10,787 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 02:32:10,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-10 02:32:10,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:10,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783913759] [2025-01-10 02:32:10,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783913759] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:10,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675801681] [2025-01-10 02:32:10,889 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 02:32:10,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:10,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:10,892 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) [2025-01-10 02:32:10,893 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 [2025-01-10 02:32:10,914 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-01-10 02:32:10,925 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 42 of 42 statements. [2025-01-10 02:32:10,926 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 02:32:10,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:10,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 02:32:10,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:10,961 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-10 02:32:10,961 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:32:10,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675801681] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:10,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:32:10,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2025-01-10 02:32:10,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382830017] [2025-01-10 02:32:10,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:10,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 02:32:10,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:10,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 02:32:10,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-10 02:32:10,962 INFO L87 Difference]: Start difference. First operand 121 states and 158 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:32:10,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:10,989 INFO L93 Difference]: Finished difference Result 133 states and 175 transitions. [2025-01-10 02:32:10,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 02:32:10,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2025-01-10 02:32:10,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:10,991 INFO L225 Difference]: With dead ends: 133 [2025-01-10 02:32:10,991 INFO L226 Difference]: Without dead ends: 132 [2025-01-10 02:32:10,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-10 02:32:10,991 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:10,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 140 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:32:10,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2025-01-10 02:32:11,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 127. [2025-01-10 02:32:11,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 98 states have (on average 1.153061224489796) internal successors, (113), 100 states have internal predecessors, (113), 16 states have call successors, (16), 6 states have call predecessors, (16), 9 states have return successors, (35), 20 states have call predecessors, (35), 15 states have call successors, (35) [2025-01-10 02:32:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 164 transitions. [2025-01-10 02:32:11,011 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 164 transitions. Word has length 42 [2025-01-10 02:32:11,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:11,011 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 164 transitions. [2025-01-10 02:32:11,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:32:11,011 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 164 transitions. [2025-01-10 02:32:11,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-01-10 02:32:11,013 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:11,013 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:11,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-10 02:32:11,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:11,214 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:11,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:11,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1483804933, now seen corresponding path program 1 times [2025-01-10 02:32:11,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:11,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354140360] [2025-01-10 02:32:11,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:11,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:11,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-01-10 02:32:11,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-01-10 02:32:11,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:11,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:11,291 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-10 02:32:11,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:11,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354140360] [2025-01-10 02:32:11,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354140360] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:11,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728160631] [2025-01-10 02:32:11,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:11,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:11,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:11,294 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) [2025-01-10 02:32:11,297 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 [2025-01-10 02:32:11,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-01-10 02:32:11,331 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-01-10 02:32:11,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:11,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:11,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 02:32:11,333 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:11,381 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-10 02:32:11,381 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:32:11,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728160631] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:11,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:32:11,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2025-01-10 02:32:11,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21091092] [2025-01-10 02:32:11,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:11,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 02:32:11,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:11,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 02:32:11,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-01-10 02:32:11,382 INFO L87 Difference]: Start difference. First operand 127 states and 164 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:32:11,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:11,412 INFO L93 Difference]: Finished difference Result 155 states and 203 transitions. [2025-01-10 02:32:11,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 02:32:11,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2025-01-10 02:32:11,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:11,414 INFO L225 Difference]: With dead ends: 155 [2025-01-10 02:32:11,414 INFO L226 Difference]: Without dead ends: 154 [2025-01-10 02:32:11,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-01-10 02:32:11,414 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:11,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 148 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:32:11,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2025-01-10 02:32:11,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 138. [2025-01-10 02:32:11,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 107 states have (on average 1.1401869158878504) internal successors, (122), 108 states have internal predecessors, (122), 18 states have call successors, (18), 6 states have call predecessors, (18), 9 states have return successors, (41), 23 states have call predecessors, (41), 17 states have call successors, (41) [2025-01-10 02:32:11,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 181 transitions. [2025-01-10 02:32:11,436 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 181 transitions. Word has length 43 [2025-01-10 02:32:11,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:11,436 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 181 transitions. [2025-01-10 02:32:11,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:32:11,437 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 181 transitions. [2025-01-10 02:32:11,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-01-10 02:32:11,439 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:11,439 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:11,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 02:32:11,640 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,SelfDestructingSolverStorable10 [2025-01-10 02:32:11,640 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:11,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:11,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1614425526, now seen corresponding path program 1 times [2025-01-10 02:32:11,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:11,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641721610] [2025-01-10 02:32:11,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:11,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:11,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-01-10 02:32:11,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-01-10 02:32:11,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:11,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:11,699 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-10 02:32:11,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:11,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641721610] [2025-01-10 02:32:11,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641721610] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:11,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:32:11,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 02:32:11,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305223445] [2025-01-10 02:32:11,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:11,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 02:32:11,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:11,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 02:32:11,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:32:11,701 INFO L87 Difference]: Start difference. First operand 138 states and 181 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:32:11,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:11,728 INFO L93 Difference]: Finished difference Result 154 states and 202 transitions. [2025-01-10 02:32:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 02:32:11,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2025-01-10 02:32:11,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:11,729 INFO L225 Difference]: With dead ends: 154 [2025-01-10 02:32:11,729 INFO L226 Difference]: Without dead ends: 153 [2025-01-10 02:32:11,730 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 [2025-01-10 02:32:11,730 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 2 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:11,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 154 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:32:11,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-01-10 02:32:11,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 134. [2025-01-10 02:32:11,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 104 states have (on average 1.1442307692307692) internal successors, (119), 105 states have internal predecessors, (119), 17 states have call successors, (17), 6 states have call predecessors, (17), 9 states have return successors, (38), 22 states have call predecessors, (38), 16 states have call successors, (38) [2025-01-10 02:32:11,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 174 transitions. [2025-01-10 02:32:11,742 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 174 transitions. Word has length 44 [2025-01-10 02:32:11,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:11,742 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 174 transitions. [2025-01-10 02:32:11,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 02:32:11,742 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 174 transitions. [2025-01-10 02:32:11,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-01-10 02:32:11,743 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:11,743 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:11,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-10 02:32:11,743 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:11,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:11,747 INFO L85 PathProgramCache]: Analyzing trace with hash 2086948818, now seen corresponding path program 1 times [2025-01-10 02:32:11,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:11,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526396779] [2025-01-10 02:32:11,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:11,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:11,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-10 02:32:11,753 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-10 02:32:11,753 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:11,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:11,802 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-01-10 02:32:11,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:11,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526396779] [2025-01-10 02:32:11,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526396779] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:11,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860407605] [2025-01-10 02:32:11,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:11,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:11,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:11,804 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) [2025-01-10 02:32:11,806 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 [2025-01-10 02:32:11,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-10 02:32:11,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-10 02:32:11,831 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:11,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:11,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-10 02:32:11,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:11,970 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 02:32:11,970 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:32:12,180 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 02:32:12,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860407605] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:32:12,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:32:12,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 15, 15] total 31 [2025-01-10 02:32:12,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599405332] [2025-01-10 02:32:12,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:32:12,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2025-01-10 02:32:12,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:12,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2025-01-10 02:32:12,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=825, Unknown=0, NotChecked=0, Total=930 [2025-01-10 02:32:12,182 INFO L87 Difference]: Start difference. First operand 134 states and 174 transitions. Second operand has 31 states, 29 states have (on average 3.0689655172413794) internal successors, (89), 21 states have internal predecessors, (89), 14 states have call successors, (18), 11 states have call predecessors, (18), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2025-01-10 02:32:12,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:12,723 INFO L93 Difference]: Finished difference Result 298 states and 402 transitions. [2025-01-10 02:32:12,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-01-10 02:32:12,723 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 3.0689655172413794) internal successors, (89), 21 states have internal predecessors, (89), 14 states have call successors, (18), 11 states have call predecessors, (18), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 48 [2025-01-10 02:32:12,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:12,724 INFO L225 Difference]: With dead ends: 298 [2025-01-10 02:32:12,724 INFO L226 Difference]: Without dead ends: 183 [2025-01-10 02:32:12,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=280, Invalid=1700, Unknown=0, NotChecked=0, Total=1980 [2025-01-10 02:32:12,726 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 290 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:12,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 399 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 02:32:12,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2025-01-10 02:32:12,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 169. [2025-01-10 02:32:12,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 133 states have (on average 1.1353383458646618) internal successors, (151), 132 states have internal predecessors, (151), 21 states have call successors, (21), 8 states have call predecessors, (21), 11 states have return successors, (39), 28 states have call predecessors, (39), 20 states have call successors, (39) [2025-01-10 02:32:12,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 211 transitions. [2025-01-10 02:32:12,736 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 211 transitions. Word has length 48 [2025-01-10 02:32:12,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:12,736 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 211 transitions. [2025-01-10 02:32:12,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 3.0689655172413794) internal successors, (89), 21 states have internal predecessors, (89), 14 states have call successors, (18), 11 states have call predecessors, (18), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2025-01-10 02:32:12,736 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 211 transitions. [2025-01-10 02:32:12,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-01-10 02:32:12,737 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:12,737 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:12,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 02:32:12,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-10 02:32:12,941 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:12,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:12,942 INFO L85 PathProgramCache]: Analyzing trace with hash 632910190, now seen corresponding path program 1 times [2025-01-10 02:32:12,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:12,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987369860] [2025-01-10 02:32:12,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:12,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:12,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-01-10 02:32:12,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-01-10 02:32:12,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:12,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:12,981 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-01-10 02:32:12,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:12,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987369860] [2025-01-10 02:32:12,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987369860] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:12,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006889190] [2025-01-10 02:32:12,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:12,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:12,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:12,984 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) [2025-01-10 02:32:12,985 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 [2025-01-10 02:32:13,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-01-10 02:32:13,016 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-01-10 02:32:13,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:13,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:13,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 02:32:13,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:13,128 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 26 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-10 02:32:13,128 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:32:13,263 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 26 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-10 02:32:13,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006889190] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:32:13,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:32:13,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 13, 13] total 17 [2025-01-10 02:32:13,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395341287] [2025-01-10 02:32:13,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:32:13,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-01-10 02:32:13,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:13,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-01-10 02:32:13,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2025-01-10 02:32:13,265 INFO L87 Difference]: Start difference. First operand 169 states and 211 transitions. Second operand has 17 states, 16 states have (on average 4.3125) internal successors, (69), 13 states have internal predecessors, (69), 8 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2025-01-10 02:32:13,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:13,600 INFO L93 Difference]: Finished difference Result 315 states and 397 transitions. [2025-01-10 02:32:13,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-10 02:32:13,601 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.3125) internal successors, (69), 13 states have internal predecessors, (69), 8 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 61 [2025-01-10 02:32:13,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:13,602 INFO L225 Difference]: With dead ends: 315 [2025-01-10 02:32:13,602 INFO L226 Difference]: Without dead ends: 181 [2025-01-10 02:32:13,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 103 SyntacticMatches, 10 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=628, Unknown=0, NotChecked=0, Total=756 [2025-01-10 02:32:13,603 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 131 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:13,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 268 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 02:32:13,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2025-01-10 02:32:13,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 165. [2025-01-10 02:32:13,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 129 states have (on average 1.124031007751938) internal successors, (145), 130 states have internal predecessors, (145), 21 states have call successors, (21), 8 states have call predecessors, (21), 11 states have return successors, (31), 26 states have call predecessors, (31), 20 states have call successors, (31) [2025-01-10 02:32:13,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 197 transitions. [2025-01-10 02:32:13,610 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 197 transitions. Word has length 61 [2025-01-10 02:32:13,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:13,611 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 197 transitions. [2025-01-10 02:32:13,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.3125) internal successors, (69), 13 states have internal predecessors, (69), 8 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2025-01-10 02:32:13,611 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 197 transitions. [2025-01-10 02:32:13,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-01-10 02:32:13,611 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:13,611 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:13,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-10 02:32:13,812 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,SelfDestructingSolverStorable13 [2025-01-10 02:32:13,812 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:13,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:13,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1305190632, now seen corresponding path program 1 times [2025-01-10 02:32:13,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:13,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699808942] [2025-01-10 02:32:13,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:13,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:13,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-01-10 02:32:13,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-01-10 02:32:13,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:13,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:13,849 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-10 02:32:13,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:13,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699808942] [2025-01-10 02:32:13,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699808942] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:13,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:32:13,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 02:32:13,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345863609] [2025-01-10 02:32:13,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:13,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 02:32:13,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:13,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 02:32:13,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:32:13,851 INFO L87 Difference]: Start difference. First operand 165 states and 197 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 02:32:13,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:13,871 INFO L93 Difference]: Finished difference Result 169 states and 202 transitions. [2025-01-10 02:32:13,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 02:32:13,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2025-01-10 02:32:13,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:13,872 INFO L225 Difference]: With dead ends: 169 [2025-01-10 02:32:13,872 INFO L226 Difference]: Without dead ends: 168 [2025-01-10 02:32:13,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:32:13,873 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:13,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 140 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:32:13,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-01-10 02:32:13,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2025-01-10 02:32:13,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 131 states have (on average 1.1145038167938932) internal successors, (146), 131 states have internal predecessors, (146), 21 states have call successors, (21), 8 states have call predecessors, (21), 11 states have return successors, (31), 27 states have call predecessors, (31), 20 states have call successors, (31) [2025-01-10 02:32:13,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 198 transitions. [2025-01-10 02:32:13,880 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 198 transitions. Word has length 55 [2025-01-10 02:32:13,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:13,881 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 198 transitions. [2025-01-10 02:32:13,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 02:32:13,881 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 198 transitions. [2025-01-10 02:32:13,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-01-10 02:32:13,881 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:13,881 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:13,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-10 02:32:13,882 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:13,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:13,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1806203829, now seen corresponding path program 1 times [2025-01-10 02:32:13,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:13,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938830777] [2025-01-10 02:32:13,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:13,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:13,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-01-10 02:32:13,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-01-10 02:32:13,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:13,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:13,922 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-10 02:32:13,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:13,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938830777] [2025-01-10 02:32:13,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938830777] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:13,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:32:13,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 02:32:13,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038733965] [2025-01-10 02:32:13,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:13,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 02:32:13,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:13,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 02:32:13,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:32:13,924 INFO L87 Difference]: Start difference. First operand 167 states and 198 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 02:32:13,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:13,943 INFO L93 Difference]: Finished difference Result 169 states and 200 transitions. [2025-01-10 02:32:13,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 02:32:13,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2025-01-10 02:32:13,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:13,944 INFO L225 Difference]: With dead ends: 169 [2025-01-10 02:32:13,944 INFO L226 Difference]: Without dead ends: 168 [2025-01-10 02:32:13,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:32:13,945 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:13,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 107 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:32:13,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-01-10 02:32:13,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 161. [2025-01-10 02:32:13,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 126 states have (on average 1.1111111111111112) internal successors, (140), 127 states have internal predecessors, (140), 20 states have call successors, (20), 8 states have call predecessors, (20), 11 states have return successors, (30), 25 states have call predecessors, (30), 19 states have call successors, (30) [2025-01-10 02:32:13,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 190 transitions. [2025-01-10 02:32:13,952 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 190 transitions. Word has length 56 [2025-01-10 02:32:13,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:13,952 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 190 transitions. [2025-01-10 02:32:13,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 02:32:13,952 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 190 transitions. [2025-01-10 02:32:13,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-01-10 02:32:13,952 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:13,952 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:13,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-10 02:32:13,952 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:13,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:13,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1795256181, now seen corresponding path program 1 times [2025-01-10 02:32:13,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:13,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048748167] [2025-01-10 02:32:13,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:13,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:13,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-01-10 02:32:13,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-01-10 02:32:13,957 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:13,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:13,998 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-10 02:32:13,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:13,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048748167] [2025-01-10 02:32:13,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048748167] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:13,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:32:13,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 02:32:13,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259598825] [2025-01-10 02:32:13,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:13,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 02:32:13,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:14,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 02:32:14,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:32:14,000 INFO L87 Difference]: Start difference. First operand 161 states and 190 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 02:32:14,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:14,020 INFO L93 Difference]: Finished difference Result 168 states and 199 transitions. [2025-01-10 02:32:14,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 02:32:14,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2025-01-10 02:32:14,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:14,022 INFO L225 Difference]: With dead ends: 168 [2025-01-10 02:32:14,022 INFO L226 Difference]: Without dead ends: 167 [2025-01-10 02:32:14,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:32:14,023 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 3 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:14,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 117 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:32:14,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2025-01-10 02:32:14,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2025-01-10 02:32:14,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 129 states have (on average 1.1085271317829457) internal successors, (143), 130 states have internal predecessors, (143), 20 states have call successors, (20), 8 states have call predecessors, (20), 12 states have return successors, (32), 26 states have call predecessors, (32), 19 states have call successors, (32) [2025-01-10 02:32:14,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 195 transitions. [2025-01-10 02:32:14,029 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 195 transitions. Word has length 56 [2025-01-10 02:32:14,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:14,029 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 195 transitions. [2025-01-10 02:32:14,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 02:32:14,029 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 195 transitions. [2025-01-10 02:32:14,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-01-10 02:32:14,030 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:14,030 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:14,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-10 02:32:14,030 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:14,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:14,030 INFO L85 PathProgramCache]: Analyzing trace with hash 181633336, now seen corresponding path program 1 times [2025-01-10 02:32:14,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:14,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714782322] [2025-01-10 02:32:14,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:14,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:14,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-01-10 02:32:14,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-01-10 02:32:14,036 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:14,036 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:14,111 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-10 02:32:14,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:14,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714782322] [2025-01-10 02:32:14,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714782322] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:14,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145293466] [2025-01-10 02:32:14,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:14,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:14,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:14,113 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) [2025-01-10 02:32:14,115 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 [2025-01-10 02:32:14,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-01-10 02:32:14,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-01-10 02:32:14,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:14,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:14,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-10 02:32:14,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:14,203 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-10 02:32:14,203 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:32:14,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145293466] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:14,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:32:14,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 14 [2025-01-10 02:32:14,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025509827] [2025-01-10 02:32:14,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:14,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 02:32:14,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:14,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 02:32:14,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2025-01-10 02:32:14,204 INFO L87 Difference]: Start difference. First operand 165 states and 195 transitions. Second operand has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-10 02:32:14,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:14,248 INFO L93 Difference]: Finished difference Result 200 states and 240 transitions. [2025-01-10 02:32:14,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 02:32:14,248 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 57 [2025-01-10 02:32:14,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:14,250 INFO L225 Difference]: With dead ends: 200 [2025-01-10 02:32:14,250 INFO L226 Difference]: Without dead ends: 199 [2025-01-10 02:32:14,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2025-01-10 02:32:14,250 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 4 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:14,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 178 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:32:14,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2025-01-10 02:32:14,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 175. [2025-01-10 02:32:14,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 136 states have (on average 1.1102941176470589) internal successors, (151), 138 states have internal predecessors, (151), 21 states have call successors, (21), 8 states have call predecessors, (21), 14 states have return successors, (39), 28 states have call predecessors, (39), 20 states have call successors, (39) [2025-01-10 02:32:14,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 211 transitions. [2025-01-10 02:32:14,258 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 211 transitions. Word has length 57 [2025-01-10 02:32:14,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:14,258 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 211 transitions. [2025-01-10 02:32:14,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-10 02:32:14,258 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 211 transitions. [2025-01-10 02:32:14,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-01-10 02:32:14,259 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:14,259 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:14,268 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 [2025-01-10 02:32:14,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:14,463 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:14,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:14,463 INFO L85 PathProgramCache]: Analyzing trace with hash -2056240160, now seen corresponding path program 1 times [2025-01-10 02:32:14,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:14,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653897287] [2025-01-10 02:32:14,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:14,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:14,473 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-01-10 02:32:14,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-01-10 02:32:14,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:14,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:14,505 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-01-10 02:32:14,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:14,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653897287] [2025-01-10 02:32:14,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653897287] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:32:14,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:32:14,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 02:32:14,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777066995] [2025-01-10 02:32:14,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:32:14,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 02:32:14,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:14,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 02:32:14,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:32:14,507 INFO L87 Difference]: Start difference. First operand 175 states and 211 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 02:32:14,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:14,526 INFO L93 Difference]: Finished difference Result 183 states and 219 transitions. [2025-01-10 02:32:14,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 02:32:14,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 61 [2025-01-10 02:32:14,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:14,527 INFO L225 Difference]: With dead ends: 183 [2025-01-10 02:32:14,527 INFO L226 Difference]: Without dead ends: 182 [2025-01-10 02:32:14,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:32:14,528 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:14,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 145 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:32:14,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2025-01-10 02:32:14,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 175. [2025-01-10 02:32:14,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 136 states have (on average 1.0955882352941178) internal successors, (149), 138 states have internal predecessors, (149), 21 states have call successors, (21), 8 states have call predecessors, (21), 14 states have return successors, (39), 28 states have call predecessors, (39), 20 states have call successors, (39) [2025-01-10 02:32:14,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 209 transitions. [2025-01-10 02:32:14,536 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 209 transitions. Word has length 61 [2025-01-10 02:32:14,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:14,536 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 209 transitions. [2025-01-10 02:32:14,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-10 02:32:14,536 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 209 transitions. [2025-01-10 02:32:14,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-01-10 02:32:14,537 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:14,537 INFO L218 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:14,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-01-10 02:32:14,537 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:14,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:14,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1924796246, now seen corresponding path program 1 times [2025-01-10 02:32:14,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:14,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99006255] [2025-01-10 02:32:14,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:14,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:14,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-10 02:32:14,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-10 02:32:14,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:14,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:14,656 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 20 proven. 30 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-10 02:32:14,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:14,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99006255] [2025-01-10 02:32:14,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99006255] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:14,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126836456] [2025-01-10 02:32:14,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:14,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:14,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:14,660 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) [2025-01-10 02:32:14,663 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 [2025-01-10 02:32:14,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-10 02:32:14,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-10 02:32:14,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:14,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:14,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 02:32:14,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:14,794 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-01-10 02:32:14,795 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:32:14,964 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-01-10 02:32:14,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126836456] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:32:14,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:32:14,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 7] total 25 [2025-01-10 02:32:14,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597027654] [2025-01-10 02:32:14,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:32:14,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-10 02:32:14,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:14,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-10 02:32:14,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2025-01-10 02:32:14,967 INFO L87 Difference]: Start difference. First operand 175 states and 209 transitions. Second operand has 25 states, 24 states have (on average 3.5) internal successors, (84), 22 states have internal predecessors, (84), 10 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) [2025-01-10 02:32:15,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:15,658 INFO L93 Difference]: Finished difference Result 324 states and 383 transitions. [2025-01-10 02:32:15,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-10 02:32:15,661 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.5) internal successors, (84), 22 states have internal predecessors, (84), 10 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) Word has length 74 [2025-01-10 02:32:15,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:15,662 INFO L225 Difference]: With dead ends: 324 [2025-01-10 02:32:15,662 INFO L226 Difference]: Without dead ends: 206 [2025-01-10 02:32:15,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=271, Invalid=1799, Unknown=0, NotChecked=0, Total=2070 [2025-01-10 02:32:15,668 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 151 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:15,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 268 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-10 02:32:15,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2025-01-10 02:32:15,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 162. [2025-01-10 02:32:15,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 125 states have (on average 1.088) internal successors, (136), 129 states have internal predecessors, (136), 20 states have call successors, (20), 8 states have call predecessors, (20), 13 states have return successors, (33), 24 states have call predecessors, (33), 19 states have call successors, (33) [2025-01-10 02:32:15,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 189 transitions. [2025-01-10 02:32:15,687 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 189 transitions. Word has length 74 [2025-01-10 02:32:15,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:15,687 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 189 transitions. [2025-01-10 02:32:15,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.5) internal successors, (84), 22 states have internal predecessors, (84), 10 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) [2025-01-10 02:32:15,687 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 189 transitions. [2025-01-10 02:32:15,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-01-10 02:32:15,691 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:15,691 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:15,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-01-10 02:32:15,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:15,895 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:15,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:15,895 INFO L85 PathProgramCache]: Analyzing trace with hash 196968042, now seen corresponding path program 1 times [2025-01-10 02:32:15,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:15,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88884077] [2025-01-10 02:32:15,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:15,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:15,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-01-10 02:32:15,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-01-10 02:32:15,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:15,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:16,009 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 14 proven. 29 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-10 02:32:16,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:16,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88884077] [2025-01-10 02:32:16,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88884077] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:16,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575304257] [2025-01-10 02:32:16,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:16,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:16,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:16,011 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:32:16,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-10 02:32:16,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-01-10 02:32:16,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-01-10 02:32:16,043 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:16,043 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:16,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 02:32:16,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:16,083 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 31 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-01-10 02:32:16,083 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:32:16,245 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 14 proven. 29 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-10 02:32:16,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575304257] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:32:16,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:32:16,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-01-10 02:32:16,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251992330] [2025-01-10 02:32:16,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:32:16,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-10 02:32:16,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:16,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-10 02:32:16,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-01-10 02:32:16,247 INFO L87 Difference]: Start difference. First operand 162 states and 189 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 7 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2025-01-10 02:32:16,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:16,389 INFO L93 Difference]: Finished difference Result 275 states and 318 transitions. [2025-01-10 02:32:16,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 02:32:16,389 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 7 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 70 [2025-01-10 02:32:16,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:16,390 INFO L225 Difference]: With dead ends: 275 [2025-01-10 02:32:16,390 INFO L226 Difference]: Without dead ends: 169 [2025-01-10 02:32:16,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 134 SyntacticMatches, 7 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2025-01-10 02:32:16,391 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 89 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:16,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 213 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:32:16,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2025-01-10 02:32:16,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 162. [2025-01-10 02:32:16,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 125 states have (on average 1.088) internal successors, (136), 129 states have internal predecessors, (136), 20 states have call successors, (20), 8 states have call predecessors, (20), 13 states have return successors, (31), 24 states have call predecessors, (31), 19 states have call successors, (31) [2025-01-10 02:32:16,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 187 transitions. [2025-01-10 02:32:16,400 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 187 transitions. Word has length 70 [2025-01-10 02:32:16,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:16,400 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 187 transitions. [2025-01-10 02:32:16,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 7 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2025-01-10 02:32:16,403 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 187 transitions. [2025-01-10 02:32:16,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-01-10 02:32:16,403 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:16,404 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:16,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-01-10 02:32:16,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:16,605 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:16,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:16,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1001511063, now seen corresponding path program 1 times [2025-01-10 02:32:16,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:16,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606441376] [2025-01-10 02:32:16,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:16,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:16,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-01-10 02:32:16,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-01-10 02:32:16,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:16,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:16,671 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-10 02:32:16,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:16,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606441376] [2025-01-10 02:32:16,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606441376] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:16,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967863192] [2025-01-10 02:32:16,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:16,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:16,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:16,674 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:32:16,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-10 02:32:16,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-01-10 02:32:16,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-01-10 02:32:16,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:16,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:16,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 02:32:16,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:16,751 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-10 02:32:16,751 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:32:16,835 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-10 02:32:16,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967863192] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:32:16,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:32:16,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 10 [2025-01-10 02:32:16,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292524748] [2025-01-10 02:32:16,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:32:16,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 02:32:16,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:16,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 02:32:16,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-01-10 02:32:16,837 INFO L87 Difference]: Start difference. First operand 162 states and 187 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2025-01-10 02:32:16,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:16,926 INFO L93 Difference]: Finished difference Result 258 states and 295 transitions. [2025-01-10 02:32:16,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 02:32:16,926 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 71 [2025-01-10 02:32:16,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:16,927 INFO L225 Difference]: With dead ends: 258 [2025-01-10 02:32:16,927 INFO L226 Difference]: Without dead ends: 163 [2025-01-10 02:32:16,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 137 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2025-01-10 02:32:16,929 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 66 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:16,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 214 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:32:16,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2025-01-10 02:32:16,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2025-01-10 02:32:16,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 123 states have (on average 1.089430894308943) internal successors, (134), 128 states have internal predecessors, (134), 20 states have call successors, (20), 8 states have call predecessors, (20), 13 states have return successors, (30), 23 states have call predecessors, (30), 19 states have call successors, (30) [2025-01-10 02:32:16,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 184 transitions. [2025-01-10 02:32:16,936 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 184 transitions. Word has length 71 [2025-01-10 02:32:16,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:16,936 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 184 transitions. [2025-01-10 02:32:16,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2025-01-10 02:32:16,936 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 184 transitions. [2025-01-10 02:32:16,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-01-10 02:32:16,937 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:16,937 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:16,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-01-10 02:32:17,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:17,138 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:17,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:17,138 INFO L85 PathProgramCache]: Analyzing trace with hash -350756515, now seen corresponding path program 1 times [2025-01-10 02:32:17,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:17,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010767576] [2025-01-10 02:32:17,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:17,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:17,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-01-10 02:32:17,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-01-10 02:32:17,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:17,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:17,276 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 17 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-10 02:32:17,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:17,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010767576] [2025-01-10 02:32:17,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010767576] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:17,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406145509] [2025-01-10 02:32:17,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:17,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:17,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:17,281 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:32:17,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-10 02:32:17,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-01-10 02:32:17,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-01-10 02:32:17,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:17,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:17,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-10 02:32:17,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:17,452 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2025-01-10 02:32:17,452 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:32:17,763 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-01-10 02:32:17,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406145509] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:32:17,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:32:17,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 11] total 30 [2025-01-10 02:32:17,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811718364] [2025-01-10 02:32:17,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:32:17,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-01-10 02:32:17,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:17,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-01-10 02:32:17,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=788, Unknown=0, NotChecked=0, Total=870 [2025-01-10 02:32:17,765 INFO L87 Difference]: Start difference. First operand 160 states and 184 transitions. Second operand has 30 states, 29 states have (on average 3.5172413793103448) internal successors, (102), 27 states have internal predecessors, (102), 13 states have call successors, (16), 4 states have call predecessors, (16), 8 states have return successors, (16), 14 states have call predecessors, (16), 10 states have call successors, (16) [2025-01-10 02:32:18,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:18,611 INFO L93 Difference]: Finished difference Result 318 states and 373 transitions. [2025-01-10 02:32:18,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-01-10 02:32:18,611 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.5172413793103448) internal successors, (102), 27 states have internal predecessors, (102), 13 states have call successors, (16), 4 states have call predecessors, (16), 8 states have return successors, (16), 14 states have call predecessors, (16), 10 states have call successors, (16) Word has length 75 [2025-01-10 02:32:18,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:18,612 INFO L225 Difference]: With dead ends: 318 [2025-01-10 02:32:18,612 INFO L226 Difference]: Without dead ends: 192 [2025-01-10 02:32:18,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 143 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 770 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=471, Invalid=3311, Unknown=0, NotChecked=0, Total=3782 [2025-01-10 02:32:18,614 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 175 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:18,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 319 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-10 02:32:18,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2025-01-10 02:32:18,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 166. [2025-01-10 02:32:18,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 127 states have (on average 1.078740157480315) internal successors, (137), 133 states have internal predecessors, (137), 21 states have call successors, (21), 8 states have call predecessors, (21), 14 states have return successors, (33), 24 states have call predecessors, (33), 20 states have call successors, (33) [2025-01-10 02:32:18,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 191 transitions. [2025-01-10 02:32:18,626 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 191 transitions. Word has length 75 [2025-01-10 02:32:18,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:18,626 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 191 transitions. [2025-01-10 02:32:18,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.5172413793103448) internal successors, (102), 27 states have internal predecessors, (102), 13 states have call successors, (16), 4 states have call predecessors, (16), 8 states have return successors, (16), 14 states have call predecessors, (16), 10 states have call successors, (16) [2025-01-10 02:32:18,627 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 191 transitions. [2025-01-10 02:32:18,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-10 02:32:18,628 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:18,628 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:18,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-01-10 02:32:18,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-01-10 02:32:18,829 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:18,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:18,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1803732141, now seen corresponding path program 1 times [2025-01-10 02:32:18,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:18,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260284051] [2025-01-10 02:32:18,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:18,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:18,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-10 02:32:18,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-10 02:32:18,838 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:18,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:18,874 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-01-10 02:32:18,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:18,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260284051] [2025-01-10 02:32:18,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260284051] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:18,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109423804] [2025-01-10 02:32:18,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:18,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:18,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:18,881 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:32:18,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-10 02:32:18,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-10 02:32:18,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-10 02:32:18,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:18,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:18,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 02:32:18,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:18,989 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 33 proven. 33 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-10 02:32:18,989 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:32:19,147 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 33 proven. 33 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-10 02:32:19,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109423804] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:32:19,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:32:19,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 11] total 15 [2025-01-10 02:32:19,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526119615] [2025-01-10 02:32:19,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:32:19,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-10 02:32:19,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:19,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-10 02:32:19,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2025-01-10 02:32:19,149 INFO L87 Difference]: Start difference. First operand 166 states and 191 transitions. Second operand has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 13 states have internal predecessors, (79), 9 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 7 states have call successors, (12) [2025-01-10 02:32:19,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:19,303 INFO L93 Difference]: Finished difference Result 273 states and 319 transitions. [2025-01-10 02:32:19,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-10 02:32:19,303 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 13 states have internal predecessors, (79), 9 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 7 states have call successors, (12) Word has length 88 [2025-01-10 02:32:19,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:19,304 INFO L225 Difference]: With dead ends: 273 [2025-01-10 02:32:19,304 INFO L226 Difference]: Without dead ends: 153 [2025-01-10 02:32:19,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 163 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2025-01-10 02:32:19,305 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 96 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:19,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 233 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:32:19,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-01-10 02:32:19,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 148. [2025-01-10 02:32:19,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 113 states have (on average 1.0707964601769913) internal successors, (121), 119 states have internal predecessors, (121), 18 states have call successors, (18), 8 states have call predecessors, (18), 13 states have return successors, (25), 20 states have call predecessors, (25), 17 states have call successors, (25) [2025-01-10 02:32:19,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 164 transitions. [2025-01-10 02:32:19,311 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 164 transitions. Word has length 88 [2025-01-10 02:32:19,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:19,311 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 164 transitions. [2025-01-10 02:32:19,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 13 states have internal predecessors, (79), 9 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 7 states have call successors, (12) [2025-01-10 02:32:19,312 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 164 transitions. [2025-01-10 02:32:19,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-01-10 02:32:19,315 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:19,316 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:19,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-01-10 02:32:19,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:19,516 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:19,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:19,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2016411688, now seen corresponding path program 2 times [2025-01-10 02:32:19,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:19,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727739450] [2025-01-10 02:32:19,517 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 02:32:19,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:19,521 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 89 statements into 2 equivalence classes. [2025-01-10 02:32:19,528 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 89 of 89 statements. [2025-01-10 02:32:19,528 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 02:32:19,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:19,698 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 8 proven. 27 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-01-10 02:32:19,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:19,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727739450] [2025-01-10 02:32:19,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727739450] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:19,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430070675] [2025-01-10 02:32:19,699 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 02:32:19,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:19,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:19,701 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:32:19,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-10 02:32:19,728 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 89 statements into 2 equivalence classes. [2025-01-10 02:32:19,741 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 89 of 89 statements. [2025-01-10 02:32:19,741 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 02:32:19,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:19,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 02:32:19,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:19,895 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-01-10 02:32:19,896 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:32:20,311 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 14 proven. 21 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-01-10 02:32:20,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430070675] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:32:20,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:32:20,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 34 [2025-01-10 02:32:20,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855747268] [2025-01-10 02:32:20,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:32:20,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-01-10 02:32:20,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:20,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-01-10 02:32:20,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1040, Unknown=0, NotChecked=0, Total=1190 [2025-01-10 02:32:20,313 INFO L87 Difference]: Start difference. First operand 148 states and 164 transitions. Second operand has 35 states, 34 states have (on average 2.7941176470588234) internal successors, (95), 35 states have internal predecessors, (95), 10 states have call successors, (12), 1 states have call predecessors, (12), 13 states have return successors, (21), 21 states have call predecessors, (21), 10 states have call successors, (21) [2025-01-10 02:32:20,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:20,578 INFO L93 Difference]: Finished difference Result 183 states and 210 transitions. [2025-01-10 02:32:20,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-10 02:32:20,579 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.7941176470588234) internal successors, (95), 35 states have internal predecessors, (95), 10 states have call successors, (12), 1 states have call predecessors, (12), 13 states have return successors, (21), 21 states have call predecessors, (21), 10 states have call successors, (21) Word has length 89 [2025-01-10 02:32:20,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:20,580 INFO L225 Difference]: With dead ends: 183 [2025-01-10 02:32:20,580 INFO L226 Difference]: Without dead ends: 181 [2025-01-10 02:32:20,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 154 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=259, Invalid=1721, Unknown=0, NotChecked=0, Total=1980 [2025-01-10 02:32:20,581 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 21 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:20,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 587 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:32:20,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2025-01-10 02:32:20,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 146. [2025-01-10 02:32:20,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 113 states have (on average 1.0530973451327434) internal successors, (119), 117 states have internal predecessors, (119), 18 states have call successors, (18), 8 states have call predecessors, (18), 13 states have return successors, (25), 20 states have call predecessors, (25), 17 states have call successors, (25) [2025-01-10 02:32:20,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 162 transitions. [2025-01-10 02:32:20,589 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 162 transitions. Word has length 89 [2025-01-10 02:32:20,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:20,589 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 162 transitions. [2025-01-10 02:32:20,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.7941176470588234) internal successors, (95), 35 states have internal predecessors, (95), 10 states have call successors, (12), 1 states have call predecessors, (12), 13 states have return successors, (21), 21 states have call predecessors, (21), 10 states have call successors, (21) [2025-01-10 02:32:20,589 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 162 transitions. [2025-01-10 02:32:20,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-01-10 02:32:20,590 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:20,590 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:20,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-10 02:32:20,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:20,791 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:20,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:20,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1915747185, now seen corresponding path program 1 times [2025-01-10 02:32:20,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:20,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345595994] [2025-01-10 02:32:20,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:20,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:20,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-01-10 02:32:20,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-01-10 02:32:20,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:20,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:21,061 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 24 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-01-10 02:32:21,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:21,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345595994] [2025-01-10 02:32:21,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345595994] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:21,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322811668] [2025-01-10 02:32:21,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:21,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:21,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:21,064 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:32:21,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-10 02:32:21,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-01-10 02:32:21,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-01-10 02:32:21,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:21,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:21,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-10 02:32:21,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:21,233 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2025-01-10 02:32:21,233 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:32:21,626 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-01-10 02:32:21,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322811668] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:32:21,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:32:21,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 16] total 33 [2025-01-10 02:32:21,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589714466] [2025-01-10 02:32:21,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:32:21,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-01-10 02:32:21,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:21,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-01-10 02:32:21,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=970, Unknown=0, NotChecked=0, Total=1122 [2025-01-10 02:32:21,629 INFO L87 Difference]: Start difference. First operand 146 states and 162 transitions. Second operand has 34 states, 33 states have (on average 2.8181818181818183) internal successors, (93), 34 states have internal predecessors, (93), 9 states have call successors, (11), 1 states have call predecessors, (11), 12 states have return successors, (20), 20 states have call predecessors, (20), 9 states have call successors, (20) [2025-01-10 02:32:21,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:21,788 INFO L93 Difference]: Finished difference Result 167 states and 184 transitions. [2025-01-10 02:32:21,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-10 02:32:21,788 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.8181818181818183) internal successors, (93), 34 states have internal predecessors, (93), 9 states have call successors, (11), 1 states have call predecessors, (11), 12 states have return successors, (20), 20 states have call predecessors, (20), 9 states have call successors, (20) Word has length 90 [2025-01-10 02:32:21,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:21,789 INFO L225 Difference]: With dead ends: 167 [2025-01-10 02:32:21,789 INFO L226 Difference]: Without dead ends: 152 [2025-01-10 02:32:21,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 157 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=194, Invalid=1212, Unknown=0, NotChecked=0, Total=1406 [2025-01-10 02:32:21,790 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 12 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:21,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 471 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:32:21,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2025-01-10 02:32:21,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2025-01-10 02:32:21,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 93 states have (on average 1.043010752688172) internal successors, (97), 97 states have internal predecessors, (97), 15 states have call successors, (15), 8 states have call predecessors, (15), 11 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2025-01-10 02:32:21,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 129 transitions. [2025-01-10 02:32:21,798 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 129 transitions. Word has length 90 [2025-01-10 02:32:21,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:21,799 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 129 transitions. [2025-01-10 02:32:21,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.8181818181818183) internal successors, (93), 34 states have internal predecessors, (93), 9 states have call successors, (11), 1 states have call predecessors, (11), 12 states have return successors, (20), 20 states have call predecessors, (20), 9 states have call successors, (20) [2025-01-10 02:32:21,799 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 129 transitions. [2025-01-10 02:32:21,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-01-10 02:32:21,800 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:21,800 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:21,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-01-10 02:32:22,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-01-10 02:32:22,001 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:22,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:22,001 INFO L85 PathProgramCache]: Analyzing trace with hash 324878117, now seen corresponding path program 1 times [2025-01-10 02:32:22,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:22,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914193827] [2025-01-10 02:32:22,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:22,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:22,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-01-10 02:32:22,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-01-10 02:32:22,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:22,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:22,090 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2025-01-10 02:32:22,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:22,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914193827] [2025-01-10 02:32:22,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914193827] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:22,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613198838] [2025-01-10 02:32:22,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:32:22,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:22,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:22,093 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:32:22,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-10 02:32:22,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-01-10 02:32:22,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-01-10 02:32:22,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:32:22,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:22,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 02:32:22,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:22,175 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2025-01-10 02:32:22,175 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:32:22,339 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2025-01-10 02:32:22,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613198838] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:32:22,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:32:22,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2025-01-10 02:32:22,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100761990] [2025-01-10 02:32:22,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:32:22,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-10 02:32:22,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:22,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-10 02:32:22,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-01-10 02:32:22,341 INFO L87 Difference]: Start difference. First operand 120 states and 129 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2025-01-10 02:32:22,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:22,436 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2025-01-10 02:32:22,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 02:32:22,436 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 124 [2025-01-10 02:32:22,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:22,437 INFO L225 Difference]: With dead ends: 133 [2025-01-10 02:32:22,437 INFO L226 Difference]: Without dead ends: 118 [2025-01-10 02:32:22,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 242 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-01-10 02:32:22,438 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 60 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:22,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 112 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:32:22,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2025-01-10 02:32:22,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2025-01-10 02:32:22,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 92 states have (on average 1.0326086956521738) internal successors, (95), 95 states have internal predecessors, (95), 15 states have call successors, (15), 8 states have call predecessors, (15), 10 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2025-01-10 02:32:22,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 126 transitions. [2025-01-10 02:32:22,443 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 126 transitions. Word has length 124 [2025-01-10 02:32:22,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:22,443 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 126 transitions. [2025-01-10 02:32:22,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2025-01-10 02:32:22,443 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 126 transitions. [2025-01-10 02:32:22,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-01-10 02:32:22,444 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:32:22,444 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2025-01-10 02:32:22,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-01-10 02:32:22,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-01-10 02:32:22,645 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-01-10 02:32:22,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:32:22,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1419353795, now seen corresponding path program 2 times [2025-01-10 02:32:22,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:32:22,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772237551] [2025-01-10 02:32:22,646 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 02:32:22,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:32:22,650 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-01-10 02:32:22,656 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-01-10 02:32:22,656 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 02:32:22,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:22,972 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 45 proven. 85 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2025-01-10 02:32:22,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:32:22,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772237551] [2025-01-10 02:32:22,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772237551] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:32:22,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667172893] [2025-01-10 02:32:22,973 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 02:32:22,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:32:22,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:32:22,976 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:32:22,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-01-10 02:32:23,014 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-01-10 02:32:23,034 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-01-10 02:32:23,034 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 02:32:23,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:32:23,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-01-10 02:32:23,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:32:23,228 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2025-01-10 02:32:23,228 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:32:24,170 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 74 proven. 54 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2025-01-10 02:32:24,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667172893] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:32:24,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:32:24,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18, 22] total 44 [2025-01-10 02:32:24,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310393421] [2025-01-10 02:32:24,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:32:24,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2025-01-10 02:32:24,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:32:24,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2025-01-10 02:32:24,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1724, Unknown=0, NotChecked=0, Total=1980 [2025-01-10 02:32:24,172 INFO L87 Difference]: Start difference. First operand 118 states and 126 transitions. Second operand has 45 states, 44 states have (on average 2.727272727272727) internal successors, (120), 45 states have internal predecessors, (120), 11 states have call successors, (13), 1 states have call predecessors, (13), 15 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2025-01-10 02:32:24,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:32:24,325 INFO L93 Difference]: Finished difference Result 143 states and 155 transitions. [2025-01-10 02:32:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-10 02:32:24,325 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.727272727272727) internal successors, (120), 45 states have internal predecessors, (120), 11 states have call successors, (13), 1 states have call predecessors, (13), 15 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) Word has length 143 [2025-01-10 02:32:24,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:32:24,326 INFO L225 Difference]: With dead ends: 143 [2025-01-10 02:32:24,326 INFO L226 Difference]: Without dead ends: 0 [2025-01-10 02:32:24,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 257 SyntacticMatches, 13 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1362 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=283, Invalid=1879, Unknown=0, NotChecked=0, Total=2162 [2025-01-10 02:32:24,327 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:32:24,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 651 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:32:24,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-10 02:32:24,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-10 02:32:24,328 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) [2025-01-10 02:32:24,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-10 02:32:24,328 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 143 [2025-01-10 02:32:24,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:32:24,328 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 02:32:24,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.727272727272727) internal successors, (120), 45 states have internal predecessors, (120), 11 states have call successors, (13), 1 states have call predecessors, (13), 15 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2025-01-10 02:32:24,328 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-10 02:32:24,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-10 02:32:24,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2025-01-10 02:32:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2025-01-10 02:32:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2025-01-10 02:32:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2025-01-10 02:32:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2025-01-10 02:32:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2025-01-10 02:32:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2025-01-10 02:32:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2025-01-10 02:32:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2025-01-10 02:32:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2025-01-10 02:32:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2025-01-10 02:32:24,331 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2025-01-10 02:32:24,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-01-10 02:32:24,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-01-10 02:32:24,538 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:32:24,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-10 02:32:27,458 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 02:32:27,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:32:27 BoogieIcfgContainer [2025-01-10 02:32:27,464 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 02:32:27,465 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 02:32:27,465 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 02:32:27,465 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 02:32:27,466 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:32:08" (3/4) ... [2025-01-10 02:32:27,467 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 02:32:27,471 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo2 [2025-01-10 02:32:27,472 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo1 [2025-01-10 02:32:27,475 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-01-10 02:32:27,476 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-10 02:32:27,476 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-10 02:32:27,477 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-10 02:32:27,532 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 02:32:27,533 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 02:32:27,533 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 02:32:27,534 INFO L158 Benchmark]: Toolchain (without parser) took 19599.43ms. Allocated memory was 142.6MB in the beginning and 553.6MB in the end (delta: 411.0MB). Free memory was 113.9MB in the beginning and 293.8MB in the end (delta: -179.9MB). Peak memory consumption was 229.3MB. Max. memory is 16.1GB. [2025-01-10 02:32:27,534 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 226.5MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 02:32:27,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 143.83ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 103.6MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 02:32:27,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.96ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 102.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 02:32:27,535 INFO L158 Benchmark]: Boogie Preprocessor took 23.71ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 101.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 02:32:27,536 INFO L158 Benchmark]: RCFGBuilder took 201.09ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 89.0MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 02:32:27,536 INFO L158 Benchmark]: TraceAbstraction took 19139.95ms. Allocated memory was 142.6MB in the beginning and 553.6MB in the end (delta: 411.0MB). Free memory was 88.4MB in the beginning and 301.9MB in the end (delta: -213.5MB). Peak memory consumption was 298.4MB. Max. memory is 16.1GB. [2025-01-10 02:32:27,536 INFO L158 Benchmark]: Witness Printer took 68.23ms. Allocated memory is still 553.6MB. Free memory was 301.9MB in the beginning and 293.8MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 02:32:27,537 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 226.5MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 143.83ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 103.6MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.96ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 102.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.71ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 101.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 201.09ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 89.0MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 19139.95ms. Allocated memory was 142.6MB in the beginning and 553.6MB in the end (delta: 411.0MB). Free memory was 88.4MB in the beginning and 301.9MB in the end (delta: -213.5MB). Peak memory consumption was 298.4MB. Max. memory is 16.1GB. * Witness Printer took 68.23ms. Allocated memory is still 553.6MB. Free memory was 301.9MB in the beginning and 293.8MB in the end (delta: 8.1MB). 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 53 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 16.2s, OverallIterations: 28, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1443 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1387 mSDsluCounter, 6426 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5417 mSDsCounter, 391 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5778 IncrementalHoareTripleChecker+Invalid, 6169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 391 mSolverCounterUnsat, 1009 mSDtfsCounter, 5778 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2434 GetRequests, 1921 SyntacticMatches, 68 SemanticMatches, 445 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4444 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=18, InterpolantAutomatonStates: 334, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 28 MinimizatonAttempts, 309 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 2649 NumberOfCodeBlocks, 2649 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 3556 ConstructedInterpolants, 0 QuantifiedInterpolants, 7407 SizeOfPredicates, 25 NumberOfNonLiveVariables, 2398 ConjunctsInSsa, 177 ConjunctsInUnsatCore, 56 InterpolantComputations, 16 PerfectInterpolantSequences, 3084/3920 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 02:32:27,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE