./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 c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb57cc67b4a5d1052a722feccb00a81098424cf4bc0bbd7bfe756405ab740d43 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 12:13:09,145 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 12:13:09,201 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 12:13:09,205 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 12:13:09,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 12:13:09,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 12:13:09,228 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 12:13:09,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 12:13:09,229 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 12:13:09,230 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 12:13:09,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 12:13:09,231 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 12:13:09,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 12:13:09,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 12:13:09,233 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 12:13:09,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 12:13:09,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 12:13:09,234 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 12:13:09,234 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 12:13:09,234 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 12:13:09,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 12:13:09,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 12:13:09,237 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 12:13:09,238 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 12:13:09,238 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 12:13:09,238 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 12:13:09,238 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 12:13:09,238 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 12:13:09,238 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 12:13:09,239 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 12:13:09,239 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 12:13:09,239 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 12:13:09,239 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 12:13:09,239 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 12:13:09,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 12:13:09,240 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 12:13:09,240 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 12:13:09,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 12:13:09,240 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 12:13:09,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 12:13:09,240 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 12:13:09,241 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 12:13:09,241 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 12:13:09,242 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 12:13:09,242 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb57cc67b4a5d1052a722feccb00a81098424cf4bc0bbd7bfe756405ab740d43 [2024-11-09 12:13:09,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 12:13:09,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 12:13:09,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 12:13:09,454 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 12:13:09,455 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 12:13:09,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c [2024-11-09 12:13:10,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 12:13:10,789 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 12:13:10,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c [2024-11-09 12:13:10,798 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e27b606be/a64e8e7d1a94447d886f1efc7e154731/FLAG21b219987 [2024-11-09 12:13:10,808 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e27b606be/a64e8e7d1a94447d886f1efc7e154731 [2024-11-09 12:13:10,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 12:13:10,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 12:13:10,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 12:13:10,813 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 12:13:10,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 12:13:10,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:13:10" (1/1) ... [2024-11-09 12:13:10,819 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7f72be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:10, skipping insertion in model container [2024-11-09 12:13:10,819 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:13:10" (1/1) ... [2024-11-09 12:13:10,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 12:13:10,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 12:13:10,991 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 12:13:11,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 12:13:11,013 INFO L204 MainTranslator]: Completed translation [2024-11-09 12:13:11,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:11 WrapperNode [2024-11-09 12:13:11,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 12:13:11,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 12:13:11,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 12:13:11,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 12:13:11,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:11" (1/1) ... [2024-11-09 12:13:11,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:11" (1/1) ... [2024-11-09 12:13:11,066 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2024-11-09 12:13:11,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 12:13:11,067 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 12:13:11,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 12:13:11,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 12:13:11,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:11" (1/1) ... [2024-11-09 12:13:11,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:11" (1/1) ... [2024-11-09 12:13:11,080 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:11" (1/1) ... [2024-11-09 12:13:11,087 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 12:13:11,091 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:11" (1/1) ... [2024-11-09 12:13:11,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:11" (1/1) ... [2024-11-09 12:13:11,093 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:11" (1/1) ... [2024-11-09 12:13:11,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:11" (1/1) ... [2024-11-09 12:13:11,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:11" (1/1) ... [2024-11-09 12:13:11,096 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:11" (1/1) ... [2024-11-09 12:13:11,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 12:13:11,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 12:13:11,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 12:13:11,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 12:13:11,098 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:11" (1/1) ... [2024-11-09 12:13:11,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 12:13:11,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:11,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 12:13:11,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 12:13:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 12:13:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 12:13:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-11-09 12:13:11,155 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-11-09 12:13:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-11-09 12:13:11,156 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-11-09 12:13:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 12:13:11,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 12:13:11,199 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 12:13:11,201 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 12:13:11,302 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-09 12:13:11,305 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 12:13:11,314 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 12:13:11,315 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 12:13:11,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:13:11 BoogieIcfgContainer [2024-11-09 12:13:11,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 12:13:11,316 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 12:13:11,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 12:13:11,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 12:13:11,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:13:10" (1/3) ... [2024-11-09 12:13:11,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47658e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:13:11, skipping insertion in model container [2024-11-09 12:13:11,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:13:11" (2/3) ... [2024-11-09 12:13:11,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47658e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:13:11, skipping insertion in model container [2024-11-09 12:13:11,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:13:11" (3/3) ... [2024-11-09 12:13:11,321 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_5-2.c [2024-11-09 12:13:11,333 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 12:13:11,334 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-09 12:13:11,380 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 12:13:11,386 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;@50c48ffd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 12:13:11,386 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-09 12:13:11,389 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 45 states have internal predecessors, (50), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 12:13:11,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 12:13:11,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:11,394 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:13:11,396 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:11,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:11,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1867028009, now seen corresponding path program 1 times [2024-11-09 12:13:11,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:11,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317849203] [2024-11-09 12:13:11,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:11,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:11,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 12:13:11,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:11,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317849203] [2024-11-09 12:13:11,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317849203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:11,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:13:11,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 12:13:11,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039530309] [2024-11-09 12:13:11,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:11,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 12:13:11,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:11,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 12:13:11,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 12:13:11,582 INFO L87 Difference]: Start difference. First operand has 53 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 45 states have internal predecessors, (50), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 12:13:11,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:11,629 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2024-11-09 12:13:11,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 12:13:11,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 12:13:11,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:11,637 INFO L225 Difference]: With dead ends: 59 [2024-11-09 12:13:11,637 INFO L226 Difference]: Without dead ends: 45 [2024-11-09 12:13:11,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 12:13:11,643 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 11 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:11,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 92 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 12:13:11,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-09 12:13:11,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2024-11-09 12:13:11,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 36 states have internal predecessors, (40), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 12:13:11,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2024-11-09 12:13:11,677 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 7 [2024-11-09 12:13:11,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:11,678 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2024-11-09 12:13:11,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 12:13:11,678 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2024-11-09 12:13:11,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 12:13:11,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:11,679 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:13:11,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 12:13:11,680 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:11,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:11,680 INFO L85 PathProgramCache]: Analyzing trace with hash 2043293518, now seen corresponding path program 1 times [2024-11-09 12:13:11,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:11,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14815652] [2024-11-09 12:13:11,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:11,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:11,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 12:13:11,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:11,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14815652] [2024-11-09 12:13:11,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14815652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:11,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:13:11,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 12:13:11,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462250966] [2024-11-09 12:13:11,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:11,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 12:13:11,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:11,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 12:13:11,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:11,757 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 12:13:11,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:11,842 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2024-11-09 12:13:11,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 12:13:11,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 12:13:11,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:11,843 INFO L225 Difference]: With dead ends: 64 [2024-11-09 12:13:11,843 INFO L226 Difference]: Without dead ends: 58 [2024-11-09 12:13:11,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:13:11,844 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 26 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:11,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 164 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 12:13:11,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-09 12:13:11,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2024-11-09 12:13:11,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 46 states have internal predecessors, (52), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 12:13:11,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2024-11-09 12:13:11,856 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 8 [2024-11-09 12:13:11,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:11,856 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2024-11-09 12:13:11,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 12:13:11,857 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2024-11-09 12:13:11,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 12:13:11,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:11,858 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:13:11,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 12:13:11,859 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:11,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:11,859 INFO L85 PathProgramCache]: Analyzing trace with hash -749725533, now seen corresponding path program 1 times [2024-11-09 12:13:11,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:11,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040672381] [2024-11-09 12:13:11,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:11,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:11,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 12:13:11,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:11,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040672381] [2024-11-09 12:13:11,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040672381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:11,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:13:11,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 12:13:11,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014190208] [2024-11-09 12:13:11,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:11,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 12:13:11,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:11,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 12:13:11,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 12:13:11,899 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 12:13:11,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:11,919 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2024-11-09 12:13:11,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 12:13:11,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 12:13:11,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:11,921 INFO L225 Difference]: With dead ends: 58 [2024-11-09 12:13:11,921 INFO L226 Difference]: Without dead ends: 56 [2024-11-09 12:13:11,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 12:13:11,923 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 11 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:11,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 72 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 12:13:11,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-09 12:13:11,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2024-11-09 12:13:11,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 44 states have internal predecessors, (50), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 12:13:11,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2024-11-09 12:13:11,934 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 13 [2024-11-09 12:13:11,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:11,935 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2024-11-09 12:13:11,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 12:13:11,935 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2024-11-09 12:13:11,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 12:13:11,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:11,936 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:13:11,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 12:13:11,936 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:11,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:11,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1766654982, now seen corresponding path program 1 times [2024-11-09 12:13:11,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:11,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900589809] [2024-11-09 12:13:11,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:11,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:12,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 12:13:12,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:12,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900589809] [2024-11-09 12:13:12,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900589809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:12,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:13:12,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 12:13:12,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138408037] [2024-11-09 12:13:12,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:12,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 12:13:12,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:12,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 12:13:12,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 12:13:12,043 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 12:13:12,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:12,151 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2024-11-09 12:13:12,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 12:13:12,152 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 12:13:12,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:12,153 INFO L225 Difference]: With dead ends: 58 [2024-11-09 12:13:12,153 INFO L226 Difference]: Without dead ends: 54 [2024-11-09 12:13:12,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 12:13:12,155 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 51 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:12,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 102 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:13:12,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-09 12:13:12,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2024-11-09 12:13:12,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 40 states have internal predecessors, (46), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 12:13:12,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2024-11-09 12:13:12,170 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 14 [2024-11-09 12:13:12,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:12,171 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2024-11-09 12:13:12,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 12:13:12,171 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2024-11-09 12:13:12,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 12:13:12,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:12,172 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:13:12,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 12:13:12,172 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:12,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:12,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2097999453, now seen corresponding path program 1 times [2024-11-09 12:13:12,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:12,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385722119] [2024-11-09 12:13:12,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:12,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:12,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 12:13:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:12,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 12:13:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 12:13:12,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:12,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385722119] [2024-11-09 12:13:12,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385722119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:12,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:13:12,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 12:13:12,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657147926] [2024-11-09 12:13:12,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:12,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 12:13:12,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:12,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 12:13:12,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:12,306 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 12:13:12,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:12,331 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2024-11-09 12:13:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 12:13:12,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2024-11-09 12:13:12,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:12,332 INFO L225 Difference]: With dead ends: 74 [2024-11-09 12:13:12,333 INFO L226 Difference]: Without dead ends: 69 [2024-11-09 12:13:12,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:12,334 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 4 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:12,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 12:13:12,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-09 12:13:12,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2024-11-09 12:13:12,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 50 states have internal predecessors, (56), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (13), 9 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-09 12:13:12,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions. [2024-11-09 12:13:12,340 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 78 transitions. Word has length 23 [2024-11-09 12:13:12,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:12,341 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 78 transitions. [2024-11-09 12:13:12,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 12:13:12,341 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2024-11-09 12:13:12,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 12:13:12,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:12,342 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:13:12,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 12:13:12,342 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:12,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:12,343 INFO L85 PathProgramCache]: Analyzing trace with hash 624421350, now seen corresponding path program 1 times [2024-11-09 12:13:12,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:12,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489845357] [2024-11-09 12:13:12,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:12,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:12,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 12:13:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:12,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 12:13:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:12,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 12:13:12,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:12,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489845357] [2024-11-09 12:13:12,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489845357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:12,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680373110] [2024-11-09 12:13:12,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:12,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:12,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:12,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:12,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 12:13:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:12,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 12:13:12,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:12,561 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 12:13:12,562 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 12:13:12,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680373110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:12,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 12:13:12,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2024-11-09 12:13:12,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490116576] [2024-11-09 12:13:12,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:12,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 12:13:12,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:12,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 12:13:12,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-09 12:13:12,563 INFO L87 Difference]: Start difference. First operand 63 states and 78 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 12:13:12,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:12,658 INFO L93 Difference]: Finished difference Result 113 states and 140 transitions. [2024-11-09 12:13:12,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 12:13:12,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2024-11-09 12:13:12,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:12,659 INFO L225 Difference]: With dead ends: 113 [2024-11-09 12:13:12,660 INFO L226 Difference]: Without dead ends: 63 [2024-11-09 12:13:12,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 12:13:12,662 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 32 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:12,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 153 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:13:12,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-09 12:13:12,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2024-11-09 12:13:12,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 47 states have internal predecessors, (53), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-09 12:13:12,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2024-11-09 12:13:12,670 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 24 [2024-11-09 12:13:12,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:12,670 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2024-11-09 12:13:12,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 12:13:12,671 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2024-11-09 12:13:12,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 12:13:12,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:12,672 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:13:12,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 12:13:12,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 12:13:12,873 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:12,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:12,873 INFO L85 PathProgramCache]: Analyzing trace with hash 120521327, now seen corresponding path program 1 times [2024-11-09 12:13:12,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:12,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668599529] [2024-11-09 12:13:12,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:12,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:12,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 12:13:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:12,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 12:13:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:12,974 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 12:13:12,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:12,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668599529] [2024-11-09 12:13:12,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668599529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:12,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:13:12,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 12:13:12,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802945936] [2024-11-09 12:13:12,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:12,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 12:13:12,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:12,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 12:13:12,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:12,976 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 12:13:13,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:13,004 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2024-11-09 12:13:13,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 12:13:13,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2024-11-09 12:13:13,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:13,005 INFO L225 Difference]: With dead ends: 83 [2024-11-09 12:13:13,006 INFO L226 Difference]: Without dead ends: 78 [2024-11-09 12:13:13,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:13,007 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:13,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 114 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 12:13:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-09 12:13:13,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2024-11-09 12:13:13,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 55 states have internal predecessors, (60), 10 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (19), 10 states have call predecessors, (19), 9 states have call successors, (19) [2024-11-09 12:13:13,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2024-11-09 12:13:13,020 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 25 [2024-11-09 12:13:13,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:13,021 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2024-11-09 12:13:13,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 12:13:13,021 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2024-11-09 12:13:13,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 12:13:13,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:13,021 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:13:13,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 12:13:13,022 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:13,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:13,022 INFO L85 PathProgramCache]: Analyzing trace with hash -473230649, now seen corresponding path program 1 times [2024-11-09 12:13:13,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:13,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139348853] [2024-11-09 12:13:13,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:13,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:13,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:13,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 12:13:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:13,098 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 12:13:13,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:13,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139348853] [2024-11-09 12:13:13,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139348853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:13,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:13:13,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 12:13:13,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239371748] [2024-11-09 12:13:13,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:13,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 12:13:13,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:13,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 12:13:13,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:13,101 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 12:13:13,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:13,127 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2024-11-09 12:13:13,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 12:13:13,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2024-11-09 12:13:13,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:13,128 INFO L225 Difference]: With dead ends: 83 [2024-11-09 12:13:13,129 INFO L226 Difference]: Without dead ends: 81 [2024-11-09 12:13:13,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:13,129 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 4 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:13,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 12:13:13,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-09 12:13:13,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2024-11-09 12:13:13,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 58 states have (on average 1.1551724137931034) internal successors, (67), 62 states have internal predecessors, (67), 11 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (23), 12 states have call predecessors, (23), 10 states have call successors, (23) [2024-11-09 12:13:13,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2024-11-09 12:13:13,136 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 29 [2024-11-09 12:13:13,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:13,136 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2024-11-09 12:13:13,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 12:13:13,136 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2024-11-09 12:13:13,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 12:13:13,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:13,137 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1] [2024-11-09 12:13:13,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 12:13:13,138 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:13,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:13,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1581850604, now seen corresponding path program 1 times [2024-11-09 12:13:13,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:13,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890014758] [2024-11-09 12:13:13,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:13,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:13,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 12:13:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:13,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 12:13:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:13,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 12:13:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:13,246 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 12:13:13,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:13,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890014758] [2024-11-09 12:13:13,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890014758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:13,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799046243] [2024-11-09 12:13:13,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:13,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:13,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:13,249 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:13,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 12:13:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:13,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 12:13:13,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:13,335 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 12:13:13,335 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 12:13:13,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799046243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:13,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 12:13:13,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2024-11-09 12:13:13,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120205818] [2024-11-09 12:13:13,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:13,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 12:13:13,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:13,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 12:13:13,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-09 12:13:13,337 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 12:13:13,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:13,420 INFO L93 Difference]: Finished difference Result 141 states and 180 transitions. [2024-11-09 12:13:13,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 12:13:13,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-11-09 12:13:13,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:13,421 INFO L225 Difference]: With dead ends: 141 [2024-11-09 12:13:13,421 INFO L226 Difference]: Without dead ends: 76 [2024-11-09 12:13:13,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 12:13:13,423 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 31 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:13,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 176 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:13:13,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-09 12:13:13,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2024-11-09 12:13:13,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 59 states have internal predecessors, (64), 10 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (20), 11 states have call predecessors, (20), 9 states have call successors, (20) [2024-11-09 12:13:13,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2024-11-09 12:13:13,433 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 39 [2024-11-09 12:13:13,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:13,434 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2024-11-09 12:13:13,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 12:13:13,434 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2024-11-09 12:13:13,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 12:13:13,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:13,437 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:13:13,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 12:13:13,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-09 12:13:13,642 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:13,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:13,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1773385638, now seen corresponding path program 1 times [2024-11-09 12:13:13,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:13,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582399273] [2024-11-09 12:13:13,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:13,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:13,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:13,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 12:13:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:13,723 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 12:13:13,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:13,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582399273] [2024-11-09 12:13:13,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582399273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:13,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169914959] [2024-11-09 12:13:13,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:13,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:13,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:13,726 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:13,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 12:13:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:13,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 12:13:13,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:13,825 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 12:13:13,825 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:13:13,953 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 12:13:13,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169914959] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:13:13,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 12:13:13,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-09 12:13:13,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345863698] [2024-11-09 12:13:13,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 12:13:13,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 12:13:13,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:13,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 12:13:13,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-09 12:13:13,957 INFO L87 Difference]: Start difference. First operand 74 states and 94 transitions. Second operand has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 12:13:14,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:14,304 INFO L93 Difference]: Finished difference Result 200 states and 267 transitions. [2024-11-09 12:13:14,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 12:13:14,305 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 30 [2024-11-09 12:13:14,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:14,306 INFO L225 Difference]: With dead ends: 200 [2024-11-09 12:13:14,306 INFO L226 Difference]: Without dead ends: 135 [2024-11-09 12:13:14,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2024-11-09 12:13:14,307 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 117 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:14,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 667 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 12:13:14,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-09 12:13:14,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 121. [2024-11-09 12:13:14,328 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) [2024-11-09 12:13:14,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 158 transitions. [2024-11-09 12:13:14,329 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 158 transitions. Word has length 30 [2024-11-09 12:13:14,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:14,330 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 158 transitions. [2024-11-09 12:13:14,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 12:13:14,330 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 158 transitions. [2024-11-09 12:13:14,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 12:13:14,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:14,331 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:13:14,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 12:13:14,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:14,531 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:14,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:14,532 INFO L85 PathProgramCache]: Analyzing trace with hash -463506674, now seen corresponding path program 2 times [2024-11-09 12:13:14,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:14,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290907073] [2024-11-09 12:13:14,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:14,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:14,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 12:13:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:14,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:13:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 12:13:14,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:14,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290907073] [2024-11-09 12:13:14,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290907073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:14,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417969871] [2024-11-09 12:13:14,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 12:13:14,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:14,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:14,615 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:14,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 12:13:14,648 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 12:13:14,649 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 12:13:14,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 12:13:14,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:14,694 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 12:13:14,694 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 12:13:14,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417969871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:14,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 12:13:14,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-09 12:13:14,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242254743] [2024-11-09 12:13:14,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:14,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 12:13:14,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:14,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 12:13:14,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-09 12:13:14,696 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) [2024-11-09 12:13:14,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:14,720 INFO L93 Difference]: Finished difference Result 133 states and 175 transitions. [2024-11-09 12:13:14,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 12:13:14,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2024-11-09 12:13:14,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:14,722 INFO L225 Difference]: With dead ends: 133 [2024-11-09 12:13:14,722 INFO L226 Difference]: Without dead ends: 132 [2024-11-09 12:13:14,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-09 12:13:14,723 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:14,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 140 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 12:13:14,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-09 12:13:14,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 127. [2024-11-09 12:13:14,731 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) [2024-11-09 12:13:14,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 164 transitions. [2024-11-09 12:13:14,732 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 164 transitions. Word has length 42 [2024-11-09 12:13:14,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:14,732 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 164 transitions. [2024-11-09 12:13:14,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 12:13:14,733 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 164 transitions. [2024-11-09 12:13:14,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 12:13:14,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:14,734 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:13:14,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 12:13:14,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:14,934 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:14,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:14,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1483804933, now seen corresponding path program 1 times [2024-11-09 12:13:14,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:14,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782268285] [2024-11-09 12:13:14,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:14,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:14,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 12:13:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:14,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:13:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:14,996 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 12:13:14,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:14,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782268285] [2024-11-09 12:13:14,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782268285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:14,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327726809] [2024-11-09 12:13:14,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:14,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:14,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:14,998 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:14,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 12:13:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:15,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 12:13:15,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:15,062 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 12:13:15,063 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 12:13:15,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327726809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:15,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 12:13:15,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-09 12:13:15,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608382758] [2024-11-09 12:13:15,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:15,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:13:15,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:15,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:13:15,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 12:13:15,064 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) [2024-11-09 12:13:15,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:15,092 INFO L93 Difference]: Finished difference Result 155 states and 203 transitions. [2024-11-09 12:13:15,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:13:15,093 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 [2024-11-09 12:13:15,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:15,094 INFO L225 Difference]: With dead ends: 155 [2024-11-09 12:13:15,094 INFO L226 Difference]: Without dead ends: 154 [2024-11-09 12:13:15,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 12:13:15,094 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:15,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 147 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 12:13:15,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-09 12:13:15,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 138. [2024-11-09 12:13:15,101 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) [2024-11-09 12:13:15,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 181 transitions. [2024-11-09 12:13:15,103 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 181 transitions. Word has length 43 [2024-11-09 12:13:15,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:15,103 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 181 transitions. [2024-11-09 12:13:15,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 12:13:15,103 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 181 transitions. [2024-11-09 12:13:15,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 12:13:15,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:15,104 INFO L215 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] [2024-11-09 12:13:15,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 12:13:15,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 12:13:15,305 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:15,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:15,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1614425526, now seen corresponding path program 1 times [2024-11-09 12:13:15,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:15,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940594306] [2024-11-09 12:13:15,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:15,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:15,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 12:13:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:15,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:13:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:15,362 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 12:13:15,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:15,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940594306] [2024-11-09 12:13:15,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940594306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:15,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:13:15,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 12:13:15,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295763632] [2024-11-09 12:13:15,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:15,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 12:13:15,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:15,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 12:13:15,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:15,364 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) [2024-11-09 12:13:15,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:15,388 INFO L93 Difference]: Finished difference Result 154 states and 202 transitions. [2024-11-09 12:13:15,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 12:13:15,389 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 [2024-11-09 12:13:15,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:15,390 INFO L225 Difference]: With dead ends: 154 [2024-11-09 12:13:15,390 INFO L226 Difference]: Without dead ends: 153 [2024-11-09 12:13:15,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:15,390 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 2 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:15,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 120 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 12:13:15,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-09 12:13:15,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 134. [2024-11-09 12:13:15,401 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) [2024-11-09 12:13:15,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 174 transitions. [2024-11-09 12:13:15,403 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 174 transitions. Word has length 44 [2024-11-09 12:13:15,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:15,403 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 174 transitions. [2024-11-09 12:13:15,403 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) [2024-11-09 12:13:15,403 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 174 transitions. [2024-11-09 12:13:15,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 12:13:15,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:15,405 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 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] [2024-11-09 12:13:15,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 12:13:15,405 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:15,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:15,406 INFO L85 PathProgramCache]: Analyzing trace with hash -970504954, now seen corresponding path program 1 times [2024-11-09 12:13:15,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:15,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531216710] [2024-11-09 12:13:15,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:15,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:15,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 12:13:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:15,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-09 12:13:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:15,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 12:13:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:15,488 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 12:13:15,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:15,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531216710] [2024-11-09 12:13:15,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531216710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:15,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631549338] [2024-11-09 12:13:15,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:15,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:15,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:15,491 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:15,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 12:13:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:15,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 12:13:15,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 12:13:15,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:13:15,776 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 12:13:15,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631549338] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:13:15,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 12:13:15,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 17 [2024-11-09 12:13:15,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954955316] [2024-11-09 12:13:15,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 12:13:15,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 12:13:15,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:15,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 12:13:15,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-09 12:13:15,778 INFO L87 Difference]: Start difference. First operand 134 states and 174 transitions. Second operand has 17 states, 16 states have (on average 4.25) internal successors, (68), 12 states have internal predecessors, (68), 8 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 12:13:16,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:16,055 INFO L93 Difference]: Finished difference Result 283 states and 383 transitions. [2024-11-09 12:13:16,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 12:13:16,056 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.25) internal successors, (68), 12 states have internal predecessors, (68), 8 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 57 [2024-11-09 12:13:16,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:16,057 INFO L225 Difference]: With dead ends: 283 [2024-11-09 12:13:16,057 INFO L226 Difference]: Without dead ends: 170 [2024-11-09 12:13:16,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 101 SyntacticMatches, 11 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2024-11-09 12:13:16,058 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 144 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:16,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 221 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 12:13:16,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-09 12:13:16,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 158. [2024-11-09 12:13:16,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 123 states have (on average 1.1219512195121952) internal successors, (138), 124 states have internal predecessors, (138), 20 states have call successors, (20), 8 states have call predecessors, (20), 11 states have return successors, (38), 25 states have call predecessors, (38), 19 states have call successors, (38) [2024-11-09 12:13:16,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 196 transitions. [2024-11-09 12:13:16,066 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 196 transitions. Word has length 57 [2024-11-09 12:13:16,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:16,066 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 196 transitions. [2024-11-09 12:13:16,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.25) internal successors, (68), 12 states have internal predecessors, (68), 8 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 12:13:16,066 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 196 transitions. [2024-11-09 12:13:16,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 12:13:16,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:16,067 INFO L215 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] [2024-11-09 12:13:16,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 12:13:16,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:16,269 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:16,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:16,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1881704096, now seen corresponding path program 1 times [2024-11-09 12:13:16,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:16,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655536130] [2024-11-09 12:13:16,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:16,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:16,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 12:13:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:16,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-09 12:13:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:16,327 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 12:13:16,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:16,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655536130] [2024-11-09 12:13:16,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655536130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:16,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720763532] [2024-11-09 12:13:16,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:16,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:16,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:16,329 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:16,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 12:13:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:16,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 12:13:16,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:16,499 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 12:13:16,499 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:13:16,662 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 24 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 12:13:16,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720763532] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:13:16,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 12:13:16,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 15, 15] total 20 [2024-11-09 12:13:16,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561078418] [2024-11-09 12:13:16,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 12:13:16,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 12:13:16,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:16,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 12:13:16,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2024-11-09 12:13:16,664 INFO L87 Difference]: Start difference. First operand 158 states and 196 transitions. Second operand has 20 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 15 states have internal predecessors, (63), 9 states have call successors, (12), 7 states have call predecessors, (12), 5 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-09 12:13:17,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:17,052 INFO L93 Difference]: Finished difference Result 313 states and 406 transitions. [2024-11-09 12:13:17,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 12:13:17,053 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 15 states have internal predecessors, (63), 9 states have call successors, (12), 7 states have call predecessors, (12), 5 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 48 [2024-11-09 12:13:17,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:17,054 INFO L225 Difference]: With dead ends: 313 [2024-11-09 12:13:17,054 INFO L226 Difference]: Without dead ends: 189 [2024-11-09 12:13:17,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 79 SyntacticMatches, 12 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=794, Unknown=0, NotChecked=0, Total=930 [2024-11-09 12:13:17,056 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 205 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:17,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 357 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 12:13:17,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-09 12:13:17,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 173. [2024-11-09 12:13:17,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 134 states have (on average 1.126865671641791) internal successors, (151), 137 states have internal predecessors, (151), 21 states have call successors, (21), 9 states have call predecessors, (21), 14 states have return successors, (37), 26 states have call predecessors, (37), 20 states have call successors, (37) [2024-11-09 12:13:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 209 transitions. [2024-11-09 12:13:17,066 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 209 transitions. Word has length 48 [2024-11-09 12:13:17,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:17,067 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 209 transitions. [2024-11-09 12:13:17,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 15 states have internal predecessors, (63), 9 states have call successors, (12), 7 states have call predecessors, (12), 5 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-09 12:13:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 209 transitions. [2024-11-09 12:13:17,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 12:13:17,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:17,068 INFO L215 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] [2024-11-09 12:13:17,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 12:13:17,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:17,272 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:17,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:17,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1305190632, now seen corresponding path program 1 times [2024-11-09 12:13:17,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:17,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022043306] [2024-11-09 12:13:17,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:17,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 12:13:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-09 12:13:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,314 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 12:13:17,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:17,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022043306] [2024-11-09 12:13:17,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022043306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:17,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:13:17,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 12:13:17,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008684497] [2024-11-09 12:13:17,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:17,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 12:13:17,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:17,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 12:13:17,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:17,316 INFO L87 Difference]: Start difference. First operand 173 states and 209 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 12:13:17,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:17,336 INFO L93 Difference]: Finished difference Result 184 states and 223 transitions. [2024-11-09 12:13:17,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 12:13:17,337 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 [2024-11-09 12:13:17,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:17,338 INFO L225 Difference]: With dead ends: 184 [2024-11-09 12:13:17,338 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 12:13:17,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:17,339 INFO L432 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 [2024-11-09 12:13:17,339 INFO L433 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] [2024-11-09 12:13:17,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 12:13:17,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 177. [2024-11-09 12:13:17,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 138 states have (on average 1.1231884057971016) internal successors, (155), 139 states have internal predecessors, (155), 21 states have call successors, (21), 9 states have call predecessors, (21), 14 states have return successors, (37), 28 states have call predecessors, (37), 20 states have call successors, (37) [2024-11-09 12:13:17,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 213 transitions. [2024-11-09 12:13:17,346 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 213 transitions. Word has length 55 [2024-11-09 12:13:17,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:17,346 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 213 transitions. [2024-11-09 12:13:17,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 12:13:17,346 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 213 transitions. [2024-11-09 12:13:17,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 12:13:17,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:17,347 INFO L215 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] [2024-11-09 12:13:17,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 12:13:17,347 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:17,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:17,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1806203829, now seen corresponding path program 1 times [2024-11-09 12:13:17,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:17,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968824454] [2024-11-09 12:13:17,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:17,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 12:13:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-09 12:13:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,392 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 12:13:17,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:17,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968824454] [2024-11-09 12:13:17,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968824454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:17,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:13:17,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 12:13:17,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001085977] [2024-11-09 12:13:17,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:17,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 12:13:17,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:17,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 12:13:17,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:17,394 INFO L87 Difference]: Start difference. First operand 177 states and 213 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 12:13:17,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:17,413 INFO L93 Difference]: Finished difference Result 184 states and 221 transitions. [2024-11-09 12:13:17,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 12:13:17,414 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 [2024-11-09 12:13:17,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:17,415 INFO L225 Difference]: With dead ends: 184 [2024-11-09 12:13:17,415 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 12:13:17,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:17,416 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 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 [2024-11-09 12:13:17,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 140 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 12:13:17,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 12:13:17,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 176. [2024-11-09 12:13:17,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 137 states have (on average 1.1240875912408759) internal successors, (154), 139 states have internal predecessors, (154), 21 states have call successors, (21), 9 states have call predecessors, (21), 14 states have return successors, (37), 27 states have call predecessors, (37), 20 states have call successors, (37) [2024-11-09 12:13:17,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 212 transitions. [2024-11-09 12:13:17,426 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 212 transitions. Word has length 56 [2024-11-09 12:13:17,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:17,426 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 212 transitions. [2024-11-09 12:13:17,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 12:13:17,427 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 212 transitions. [2024-11-09 12:13:17,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 12:13:17,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:17,437 INFO L215 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] [2024-11-09 12:13:17,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 12:13:17,438 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:17,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:17,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1795256181, now seen corresponding path program 1 times [2024-11-09 12:13:17,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:17,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106926960] [2024-11-09 12:13:17,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:17,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 12:13:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-09 12:13:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,481 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 12:13:17,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:17,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106926960] [2024-11-09 12:13:17,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106926960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:17,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:13:17,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 12:13:17,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351170583] [2024-11-09 12:13:17,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:17,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 12:13:17,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:17,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 12:13:17,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:17,483 INFO L87 Difference]: Start difference. First operand 176 states and 212 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 12:13:17,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:17,506 INFO L93 Difference]: Finished difference Result 187 states and 226 transitions. [2024-11-09 12:13:17,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 12:13:17,506 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 [2024-11-09 12:13:17,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:17,507 INFO L225 Difference]: With dead ends: 187 [2024-11-09 12:13:17,508 INFO L226 Difference]: Without dead ends: 186 [2024-11-09 12:13:17,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:17,509 INFO L432 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 [2024-11-09 12:13:17,509 INFO L433 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] [2024-11-09 12:13:17,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-09 12:13:17,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 180. [2024-11-09 12:13:17,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 141 states have (on average 1.1205673758865249) internal successors, (158), 141 states have internal predecessors, (158), 21 states have call successors, (21), 9 states have call predecessors, (21), 14 states have return successors, (37), 29 states have call predecessors, (37), 20 states have call successors, (37) [2024-11-09 12:13:17,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 216 transitions. [2024-11-09 12:13:17,519 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 216 transitions. Word has length 56 [2024-11-09 12:13:17,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:17,519 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 216 transitions. [2024-11-09 12:13:17,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 12:13:17,519 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 216 transitions. [2024-11-09 12:13:17,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 12:13:17,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:17,519 INFO L215 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] [2024-11-09 12:13:17,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 12:13:17,520 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:17,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:17,520 INFO L85 PathProgramCache]: Analyzing trace with hash 181633336, now seen corresponding path program 1 times [2024-11-09 12:13:17,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:17,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534876926] [2024-11-09 12:13:17,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:17,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 12:13:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-09 12:13:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,626 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 12:13:17,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:17,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534876926] [2024-11-09 12:13:17,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534876926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:17,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:13:17,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 12:13:17,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017049353] [2024-11-09 12:13:17,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:17,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 12:13:17,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:17,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 12:13:17,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-09 12:13:17,627 INFO L87 Difference]: Start difference. First operand 180 states and 216 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 12:13:17,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:17,694 INFO L93 Difference]: Finished difference Result 222 states and 276 transitions. [2024-11-09 12:13:17,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 12:13:17,695 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 57 [2024-11-09 12:13:17,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:17,696 INFO L225 Difference]: With dead ends: 222 [2024-11-09 12:13:17,696 INFO L226 Difference]: Without dead ends: 221 [2024-11-09 12:13:17,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 12:13:17,697 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 6 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:17,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 230 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 12:13:17,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-09 12:13:17,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 188. [2024-11-09 12:13:17,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 146 states have (on average 1.1164383561643836) internal successors, (163), 148 states have internal predecessors, (163), 22 states have call successors, (22), 9 states have call predecessors, (22), 16 states have return successors, (46), 30 states have call predecessors, (46), 21 states have call successors, (46) [2024-11-09 12:13:17,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 231 transitions. [2024-11-09 12:13:17,707 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 231 transitions. Word has length 57 [2024-11-09 12:13:17,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:17,707 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 231 transitions. [2024-11-09 12:13:17,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 12:13:17,707 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 231 transitions. [2024-11-09 12:13:17,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 12:13:17,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:17,709 INFO L215 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] [2024-11-09 12:13:17,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 12:13:17,709 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:17,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:17,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2056240160, now seen corresponding path program 1 times [2024-11-09 12:13:17,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:17,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650412838] [2024-11-09 12:13:17,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:17,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 12:13:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-09 12:13:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-09 12:13:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 12:13:17,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:17,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650412838] [2024-11-09 12:13:17,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650412838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:13:17,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:13:17,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 12:13:17,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404198544] [2024-11-09 12:13:17,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:13:17,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 12:13:17,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:17,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 12:13:17,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:17,755 INFO L87 Difference]: Start difference. First operand 188 states and 231 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 12:13:17,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:17,775 INFO L93 Difference]: Finished difference Result 196 states and 239 transitions. [2024-11-09 12:13:17,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 12:13:17,775 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 [2024-11-09 12:13:17,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:17,776 INFO L225 Difference]: With dead ends: 196 [2024-11-09 12:13:17,776 INFO L226 Difference]: Without dead ends: 195 [2024-11-09 12:13:17,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:13:17,777 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:17,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 111 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 12:13:17,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-09 12:13:17,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 188. [2024-11-09 12:13:17,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 146 states have (on average 1.1027397260273972) internal successors, (161), 148 states have internal predecessors, (161), 22 states have call successors, (22), 9 states have call predecessors, (22), 16 states have return successors, (46), 30 states have call predecessors, (46), 21 states have call successors, (46) [2024-11-09 12:13:17,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 229 transitions. [2024-11-09 12:13:17,797 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 229 transitions. Word has length 61 [2024-11-09 12:13:17,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:17,798 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 229 transitions. [2024-11-09 12:13:17,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 12:13:17,799 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 229 transitions. [2024-11-09 12:13:17,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 12:13:17,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:17,800 INFO L215 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] [2024-11-09 12:13:17,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 12:13:17,800 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:17,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:17,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1924796246, now seen corresponding path program 1 times [2024-11-09 12:13:17,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:17,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428431223] [2024-11-09 12:13:17,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:17,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 12:13:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-09 12:13:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-09 12:13:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:17,964 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 20 proven. 30 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 12:13:17,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:17,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428431223] [2024-11-09 12:13:17,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428431223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:17,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117805619] [2024-11-09 12:13:17,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:17,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:17,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:17,967 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:17,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 12:13:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:18,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 12:13:18,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:18,104 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 12:13:18,104 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:13:18,267 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-09 12:13:18,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117805619] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:13:18,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 12:13:18,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 7] total 25 [2024-11-09 12:13:18,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421780383] [2024-11-09 12:13:18,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 12:13:18,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 12:13:18,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:18,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 12:13:18,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2024-11-09 12:13:18,268 INFO L87 Difference]: Start difference. First operand 188 states and 229 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) [2024-11-09 12:13:18,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:18,846 INFO L93 Difference]: Finished difference Result 345 states and 429 transitions. [2024-11-09 12:13:18,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 12:13:18,857 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 [2024-11-09 12:13:18,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:18,859 INFO L225 Difference]: With dead ends: 345 [2024-11-09 12:13:18,859 INFO L226 Difference]: Without dead ends: 215 [2024-11-09 12:13:18,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 150 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=271, Invalid=1799, Unknown=0, NotChecked=0, Total=2070 [2024-11-09 12:13:18,860 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 139 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:18,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 285 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 12:13:18,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-09 12:13:18,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 184. [2024-11-09 12:13:18,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 142 states have (on average 1.091549295774648) internal successors, (155), 146 states have internal predecessors, (155), 22 states have call successors, (22), 9 states have call predecessors, (22), 16 states have return successors, (38), 28 states have call predecessors, (38), 21 states have call successors, (38) [2024-11-09 12:13:18,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 215 transitions. [2024-11-09 12:13:18,869 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 215 transitions. Word has length 74 [2024-11-09 12:13:18,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:18,869 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 215 transitions. [2024-11-09 12:13:18,869 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) [2024-11-09 12:13:18,869 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 215 transitions. [2024-11-09 12:13:18,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 12:13:18,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:18,871 INFO L215 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] [2024-11-09 12:13:18,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 12:13:19,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-09 12:13:19,076 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:19,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:19,076 INFO L85 PathProgramCache]: Analyzing trace with hash 196968042, now seen corresponding path program 1 times [2024-11-09 12:13:19,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:19,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874910888] [2024-11-09 12:13:19,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:19,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:19,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:19,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:19,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:19,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:19,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 12:13:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:19,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 12:13:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:19,216 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 11 proven. 26 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-09 12:13:19,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:19,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874910888] [2024-11-09 12:13:19,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874910888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:19,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501831110] [2024-11-09 12:13:19,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:19,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:19,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:19,218 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:19,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 12:13:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:19,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 12:13:19,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:19,314 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 31 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 12:13:19,314 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:13:19,498 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 14 proven. 29 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 12:13:19,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501831110] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:13:19,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 12:13:19,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 18 [2024-11-09 12:13:19,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820578879] [2024-11-09 12:13:19,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 12:13:19,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 12:13:19,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:19,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 12:13:19,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-11-09 12:13:19,500 INFO L87 Difference]: Start difference. First operand 184 states and 215 transitions. Second operand has 18 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 16 states have internal predecessors, (86), 9 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-09 12:13:19,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:19,712 INFO L93 Difference]: Finished difference Result 333 states and 398 transitions. [2024-11-09 12:13:19,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 12:13:19,713 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 16 states have internal predecessors, (86), 9 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14) Word has length 70 [2024-11-09 12:13:19,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:19,714 INFO L225 Difference]: With dead ends: 333 [2024-11-09 12:13:19,714 INFO L226 Difference]: Without dead ends: 205 [2024-11-09 12:13:19,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 144 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2024-11-09 12:13:19,715 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 101 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:19,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 335 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 12:13:19,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-09 12:13:19,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 188. [2024-11-09 12:13:19,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 145 states have (on average 1.089655172413793) internal successors, (158), 149 states have internal predecessors, (158), 23 states have call successors, (23), 9 states have call predecessors, (23), 16 states have return successors, (36), 29 states have call predecessors, (36), 22 states have call successors, (36) [2024-11-09 12:13:19,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 217 transitions. [2024-11-09 12:13:19,724 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 217 transitions. Word has length 70 [2024-11-09 12:13:19,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:19,724 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 217 transitions. [2024-11-09 12:13:19,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 16 states have internal predecessors, (86), 9 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-09 12:13:19,725 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 217 transitions. [2024-11-09 12:13:19,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 12:13:19,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:19,725 INFO L215 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] [2024-11-09 12:13:19,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 12:13:19,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:19,930 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:19,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:19,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1001511063, now seen corresponding path program 1 times [2024-11-09 12:13:19,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:19,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219514098] [2024-11-09 12:13:19,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:19,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:19,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:19,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:19,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:19,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:20,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 12:13:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:20,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 12:13:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:20,018 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 12:13:20,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:20,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219514098] [2024-11-09 12:13:20,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219514098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:20,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718984116] [2024-11-09 12:13:20,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:20,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:20,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:20,020 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:20,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 12:13:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:20,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 12:13:20,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:20,090 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 12:13:20,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:13:20,179 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 12:13:20,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718984116] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:13:20,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 12:13:20,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2024-11-09 12:13:20,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384993994] [2024-11-09 12:13:20,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 12:13:20,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 12:13:20,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:20,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 12:13:20,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 12:13:20,181 INFO L87 Difference]: Start difference. First operand 188 states and 217 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 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) [2024-11-09 12:13:20,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:20,284 INFO L93 Difference]: Finished difference Result 310 states and 355 transitions. [2024-11-09 12:13:20,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 12:13:20,285 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 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 [2024-11-09 12:13:20,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:20,286 INFO L225 Difference]: With dead ends: 310 [2024-11-09 12:13:20,286 INFO L226 Difference]: Without dead ends: 189 [2024-11-09 12:13:20,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 147 SyntacticMatches, 6 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-09 12:13:20,287 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 66 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:20,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 215 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:13:20,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-09 12:13:20,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 186. [2024-11-09 12:13:20,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 143 states have (on average 1.0909090909090908) internal successors, (156), 148 states have internal predecessors, (156), 23 states have call successors, (23), 9 states have call predecessors, (23), 16 states have return successors, (35), 28 states have call predecessors, (35), 22 states have call successors, (35) [2024-11-09 12:13:20,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 214 transitions. [2024-11-09 12:13:20,295 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 214 transitions. Word has length 71 [2024-11-09 12:13:20,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:20,295 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 214 transitions. [2024-11-09 12:13:20,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 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) [2024-11-09 12:13:20,295 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 214 transitions. [2024-11-09 12:13:20,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 12:13:20,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:20,296 INFO L215 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] [2024-11-09 12:13:20,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 12:13:20,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 12:13:20,500 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:20,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:20,500 INFO L85 PathProgramCache]: Analyzing trace with hash -350756515, now seen corresponding path program 1 times [2024-11-09 12:13:20,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:20,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969774246] [2024-11-09 12:13:20,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:20,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:20,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 12:13:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:20,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:20,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:20,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-09 12:13:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:20,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 12:13:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:20,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 12:13:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:20,629 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 11 proven. 39 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 12:13:20,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:20,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969774246] [2024-11-09 12:13:20,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969774246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:20,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136031256] [2024-11-09 12:13:20,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:20,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:20,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:20,631 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:20,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 12:13:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:20,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 12:13:20,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:20,783 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 12:13:20,783 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:13:21,093 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 12:13:21,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136031256] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:13:21,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 12:13:21,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 11] total 28 [2024-11-09 12:13:21,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669891104] [2024-11-09 12:13:21,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 12:13:21,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 12:13:21,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:21,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 12:13:21,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2024-11-09 12:13:21,095 INFO L87 Difference]: Start difference. First operand 186 states and 214 transitions. Second operand has 28 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 25 states have internal predecessors, (94), 11 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (15), 11 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-09 12:13:21,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:21,716 INFO L93 Difference]: Finished difference Result 326 states and 390 transitions. [2024-11-09 12:13:21,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 12:13:21,717 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 25 states have internal predecessors, (94), 11 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (15), 11 states have call predecessors, (15), 8 states have call successors, (15) Word has length 75 [2024-11-09 12:13:21,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:21,718 INFO L225 Difference]: With dead ends: 326 [2024-11-09 12:13:21,719 INFO L226 Difference]: Without dead ends: 180 [2024-11-09 12:13:21,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 153 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=317, Invalid=2233, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 12:13:21,721 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 132 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:21,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 335 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 12:13:21,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-09 12:13:21,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 142. [2024-11-09 12:13:21,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 108 states have (on average 1.0925925925925926) internal successors, (118), 114 states have internal predecessors, (118), 17 states have call successors, (17), 9 states have call predecessors, (17), 13 states have return successors, (24), 18 states have call predecessors, (24), 16 states have call successors, (24) [2024-11-09 12:13:21,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 159 transitions. [2024-11-09 12:13:21,728 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 159 transitions. Word has length 75 [2024-11-09 12:13:21,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:21,728 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 159 transitions. [2024-11-09 12:13:21,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 25 states have internal predecessors, (94), 11 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (15), 11 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-09 12:13:21,728 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 159 transitions. [2024-11-09 12:13:21,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 12:13:21,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:21,729 INFO L215 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] [2024-11-09 12:13:21,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 12:13:21,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-09 12:13:21,929 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:21,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:21,930 INFO L85 PathProgramCache]: Analyzing trace with hash -2016411688, now seen corresponding path program 1 times [2024-11-09 12:13:21,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:21,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024465966] [2024-11-09 12:13:21,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:21,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:22,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:22,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:22,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:22,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:22,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 12:13:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:22,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 12:13:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:22,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:22,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:22,134 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 12:13:22,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:22,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024465966] [2024-11-09 12:13:22,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024465966] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:22,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429431010] [2024-11-09 12:13:22,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:22,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:22,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:22,137 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:22,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 12:13:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:22,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 12:13:22,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:22,277 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-09 12:13:22,278 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:13:22,632 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 12:13:22,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429431010] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:13:22,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 12:13:22,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 15] total 28 [2024-11-09 12:13:22,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622973613] [2024-11-09 12:13:22,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 12:13:22,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 12:13:22,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:22,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 12:13:22,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=699, Unknown=0, NotChecked=0, Total=812 [2024-11-09 12:13:22,634 INFO L87 Difference]: Start difference. First operand 142 states and 159 transitions. Second operand has 29 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 29 states have internal predecessors, (79), 7 states have call successors, (9), 1 states have call predecessors, (9), 10 states have return successors, (17), 16 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-09 12:13:22,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:22,870 INFO L93 Difference]: Finished difference Result 209 states and 259 transitions. [2024-11-09 12:13:22,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 12:13:22,871 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 29 states have internal predecessors, (79), 7 states have call successors, (9), 1 states have call predecessors, (9), 10 states have return successors, (17), 16 states have call predecessors, (17), 7 states have call successors, (17) Word has length 89 [2024-11-09 12:13:22,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:22,872 INFO L225 Difference]: With dead ends: 209 [2024-11-09 12:13:22,872 INFO L226 Difference]: Without dead ends: 207 [2024-11-09 12:13:22,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 177 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=223, Invalid=1259, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 12:13:22,873 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 12 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:22,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 524 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:13:22,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-09 12:13:22,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 138. [2024-11-09 12:13:22,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 106 states have (on average 1.0660377358490567) internal successors, (113), 111 states have internal predecessors, (113), 17 states have call successors, (17), 9 states have call predecessors, (17), 13 states have return successors, (24), 17 states have call predecessors, (24), 16 states have call successors, (24) [2024-11-09 12:13:22,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 154 transitions. [2024-11-09 12:13:22,880 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 154 transitions. Word has length 89 [2024-11-09 12:13:22,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:22,880 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 154 transitions. [2024-11-09 12:13:22,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 29 states have internal predecessors, (79), 7 states have call successors, (9), 1 states have call predecessors, (9), 10 states have return successors, (17), 16 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-09 12:13:22,880 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 154 transitions. [2024-11-09 12:13:22,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 12:13:22,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:22,881 INFO L215 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] [2024-11-09 12:13:22,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 12:13:23,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-09 12:13:23,082 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:23,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:23,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1915747185, now seen corresponding path program 1 times [2024-11-09 12:13:23,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:23,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041567600] [2024-11-09 12:13:23,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:23,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:23,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:23,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:23,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:23,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:23,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 12:13:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:23,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 12:13:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:23,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:23,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:23,272 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 12:13:23,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:23,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041567600] [2024-11-09 12:13:23,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041567600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:23,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8141849] [2024-11-09 12:13:23,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:23,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:23,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:23,275 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:23,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 12:13:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:23,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 12:13:23,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:23,410 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 12:13:23,411 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:13:23,755 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 12:13:23,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8141849] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:13:23,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 12:13:23,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 16] total 26 [2024-11-09 12:13:23,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498691464] [2024-11-09 12:13:23,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 12:13:23,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 12:13:23,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:23,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 12:13:23,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2024-11-09 12:13:23,757 INFO L87 Difference]: Start difference. First operand 138 states and 154 transitions. Second operand has 27 states, 26 states have (on average 2.923076923076923) internal successors, (76), 27 states have internal predecessors, (76), 7 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (17), 17 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-09 12:13:23,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:23,863 INFO L93 Difference]: Finished difference Result 171 states and 197 transitions. [2024-11-09 12:13:23,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 12:13:23,864 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.923076923076923) internal successors, (76), 27 states have internal predecessors, (76), 7 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (17), 17 states have call predecessors, (17), 7 states have call successors, (17) Word has length 90 [2024-11-09 12:13:23,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:23,866 INFO L225 Difference]: With dead ends: 171 [2024-11-09 12:13:23,866 INFO L226 Difference]: Without dead ends: 161 [2024-11-09 12:13:23,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 179 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=786, Unknown=0, NotChecked=0, Total=930 [2024-11-09 12:13:23,868 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 12 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:23,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 374 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:13:23,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-09 12:13:23,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 139. [2024-11-09 12:13:23,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 107 states have (on average 1.0467289719626167) internal successors, (112), 112 states have internal predecessors, (112), 17 states have call successors, (17), 9 states have call predecessors, (17), 14 states have return successors, (27), 17 states have call predecessors, (27), 16 states have call successors, (27) [2024-11-09 12:13:23,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 156 transitions. [2024-11-09 12:13:23,875 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 156 transitions. Word has length 90 [2024-11-09 12:13:23,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:23,875 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 156 transitions. [2024-11-09 12:13:23,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.923076923076923) internal successors, (76), 27 states have internal predecessors, (76), 7 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (17), 17 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-09 12:13:23,876 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 156 transitions. [2024-11-09 12:13:23,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-09 12:13:23,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:23,876 INFO L215 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] [2024-11-09 12:13:23,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 12:13:24,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-09 12:13:24,081 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:24,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:24,081 INFO L85 PathProgramCache]: Analyzing trace with hash 324878117, now seen corresponding path program 1 times [2024-11-09 12:13:24,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:24,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447488567] [2024-11-09 12:13:24,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:24,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 12:13:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 12:13:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-09 12:13:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 12:13:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,203 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-09 12:13:24,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:24,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447488567] [2024-11-09 12:13:24,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447488567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:24,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775496715] [2024-11-09 12:13:24,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:24,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:24,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:24,205 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:24,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 12:13:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 12:13:24,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:24,327 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-09 12:13:24,328 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:13:24,514 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-09 12:13:24,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775496715] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:13:24,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 12:13:24,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 14 [2024-11-09 12:13:24,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749972296] [2024-11-09 12:13:24,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 12:13:24,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 12:13:24,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:24,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 12:13:24,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-09 12:13:24,516 INFO L87 Difference]: Start difference. First operand 139 states and 156 transitions. Second operand has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 8 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-09 12:13:24,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:24,697 INFO L93 Difference]: Finished difference Result 185 states and 214 transitions. [2024-11-09 12:13:24,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 12:13:24,698 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 8 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 7 states have call successors, (11) Word has length 124 [2024-11-09 12:13:24,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:24,698 INFO L225 Difference]: With dead ends: 185 [2024-11-09 12:13:24,699 INFO L226 Difference]: Without dead ends: 139 [2024-11-09 12:13:24,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 262 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-09 12:13:24,699 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 54 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:24,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 255 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 12:13:24,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-09 12:13:24,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-09 12:13:24,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 107 states have (on average 1.0467289719626167) internal successors, (112), 112 states have internal predecessors, (112), 17 states have call successors, (17), 9 states have call predecessors, (17), 14 states have return successors, (26), 17 states have call predecessors, (26), 16 states have call successors, (26) [2024-11-09 12:13:24,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 155 transitions. [2024-11-09 12:13:24,706 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 155 transitions. Word has length 124 [2024-11-09 12:13:24,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:24,706 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 155 transitions. [2024-11-09 12:13:24,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 8 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-09 12:13:24,707 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 155 transitions. [2024-11-09 12:13:24,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-09 12:13:24,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:24,708 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 6, 5, 4, 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, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 12:13:24,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 12:13:24,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:24,909 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:24,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:24,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1872824915, now seen corresponding path program 2 times [2024-11-09 12:13:24,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:24,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546553813] [2024-11-09 12:13:24,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:24,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 12:13:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:24,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:25,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:25,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:25,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:25,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 12:13:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:25,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-09 12:13:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:25,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:25,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:25,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 12:13:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:25,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:25,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:25,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:25,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-09 12:13:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:25,087 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 92 proven. 31 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-09 12:13:25,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:25,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546553813] [2024-11-09 12:13:25,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546553813] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:25,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822010161] [2024-11-09 12:13:25,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 12:13:25,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:25,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:25,089 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:25,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 12:13:25,148 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 12:13:25,148 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 12:13:25,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 12:13:25,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 118 proven. 35 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-09 12:13:25,228 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:13:25,523 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 118 proven. 36 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-09 12:13:25,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822010161] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:13:25,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 12:13:25,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 19 [2024-11-09 12:13:25,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610849976] [2024-11-09 12:13:25,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 12:13:25,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 12:13:25,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:25,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 12:13:25,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-09 12:13:25,524 INFO L87 Difference]: Start difference. First operand 139 states and 155 transitions. Second operand has 19 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 10 states have call successors, (17), 2 states have call predecessors, (17), 7 states have return successors, (18), 10 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-09 12:13:25,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:25,738 INFO L93 Difference]: Finished difference Result 157 states and 172 transitions. [2024-11-09 12:13:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 12:13:25,739 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 10 states have call successors, (17), 2 states have call predecessors, (17), 7 states have return successors, (18), 10 states have call predecessors, (18), 9 states have call successors, (18) Word has length 143 [2024-11-09 12:13:25,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:25,740 INFO L225 Difference]: With dead ends: 157 [2024-11-09 12:13:25,740 INFO L226 Difference]: Without dead ends: 135 [2024-11-09 12:13:25,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 301 SyntacticMatches, 6 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2024-11-09 12:13:25,740 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 63 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:25,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 264 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:13:25,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-09 12:13:25,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-09 12:13:25,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 105 states have (on average 1.0380952380952382) internal successors, (109), 108 states have internal predecessors, (109), 16 states have call successors, (16), 10 states have call predecessors, (16), 13 states have return successors, (19), 16 states have call predecessors, (19), 15 states have call successors, (19) [2024-11-09 12:13:25,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 144 transitions. [2024-11-09 12:13:25,753 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 144 transitions. Word has length 143 [2024-11-09 12:13:25,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:25,753 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 144 transitions. [2024-11-09 12:13:25,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 10 states have call successors, (17), 2 states have call predecessors, (17), 7 states have return successors, (18), 10 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-09 12:13:25,754 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 144 transitions. [2024-11-09 12:13:25,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-09 12:13:25,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:13:25,755 INFO L215 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] [2024-11-09 12:13:25,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-09 12:13:25,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 12:13:25,955 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 12:13:25,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:13:25,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1419353795, now seen corresponding path program 3 times [2024-11-09 12:13:25,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:13:25,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499708782] [2024-11-09 12:13:25,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:13:25,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:13:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 12:13:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 12:13:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-09 12:13:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 12:13:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 12:13:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 12:13:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 12:13:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:13:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-09 12:13:26,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:13:26,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499708782] [2024-11-09 12:13:26,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499708782] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:13:26,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561715751] [2024-11-09 12:13:26,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 12:13:26,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:13:26,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:13:26,351 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 12:13:26,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 12:13:26,415 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-09 12:13:26,416 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 12:13:26,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 12:13:26,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:13:26,594 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-09 12:13:26,594 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:13:27,513 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 74 proven. 54 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-11-09 12:13:27,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561715751] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:13:27,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 12:13:27,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 22] total 36 [2024-11-09 12:13:27,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473757204] [2024-11-09 12:13:27,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 12:13:27,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-09 12:13:27,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:13:27,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-09 12:13:27,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1152, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 12:13:27,515 INFO L87 Difference]: Start difference. First operand 135 states and 144 transitions. Second operand has 37 states, 36 states have (on average 2.7777777777777777) internal successors, (100), 37 states have internal predecessors, (100), 9 states have call successors, (11), 1 states have call predecessors, (11), 11 states have return successors, (24), 24 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-09 12:13:27,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:13:27,615 INFO L93 Difference]: Finished difference Result 147 states and 157 transitions. [2024-11-09 12:13:27,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 12:13:27,616 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.7777777777777777) internal successors, (100), 37 states have internal predecessors, (100), 9 states have call successors, (11), 1 states have call predecessors, (11), 11 states have return successors, (24), 24 states have call predecessors, (24), 9 states have call successors, (24) Word has length 143 [2024-11-09 12:13:27,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:13:27,616 INFO L225 Difference]: With dead ends: 147 [2024-11-09 12:13:27,616 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 12:13:27,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 290 SyntacticMatches, 16 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 892 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=1284, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 12:13:27,617 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 8 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:13:27,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 412 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:13:27,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 12:13:27,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 12:13:27,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 12:13:27,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 12:13:27,618 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 143 [2024-11-09 12:13:27,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:13:27,618 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 12:13:27,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.7777777777777777) internal successors, (100), 37 states have internal predecessors, (100), 9 states have call successors, (11), 1 states have call predecessors, (11), 11 states have return successors, (24), 24 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-09 12:13:27,618 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 12:13:27,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 12:13:27,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2024-11-09 12:13:27,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2024-11-09 12:13:27,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2024-11-09 12:13:27,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2024-11-09 12:13:27,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2024-11-09 12:13:27,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2024-11-09 12:13:27,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2024-11-09 12:13:27,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2024-11-09 12:13:27,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2024-11-09 12:13:27,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2024-11-09 12:13:27,622 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2024-11-09 12:13:27,622 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2024-11-09 12:13:27,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-09 12:13:27,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 12:13:27,828 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:13:27,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 12:13:29,451 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 12:13:29,478 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 12:13:29,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:13:29 BoogieIcfgContainer [2024-11-09 12:13:29,491 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 12:13:29,492 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 12:13:29,492 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 12:13:29,492 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 12:13:29,492 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:13:11" (3/4) ... [2024-11-09 12:13:29,494 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 12:13:29,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo2 [2024-11-09 12:13:29,497 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo1 [2024-11-09 12:13:29,500 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-09 12:13:29,500 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 12:13:29,500 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 12:13:29,500 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 12:13:29,577 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 12:13:29,578 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 12:13:29,578 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 12:13:29,579 INFO L158 Benchmark]: Toolchain (without parser) took 18767.59ms. Allocated memory was 155.2MB in the beginning and 339.7MB in the end (delta: 184.5MB). Free memory was 86.2MB in the beginning and 306.1MB in the end (delta: -219.9MB). Peak memory consumption was 165.3MB. Max. memory is 16.1GB. [2024-11-09 12:13:29,579 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 155.2MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 12:13:29,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.63ms. Allocated memory is still 155.2MB. Free memory was 86.0MB in the beginning and 128.4MB in the end (delta: -42.3MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2024-11-09 12:13:29,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.67ms. Allocated memory is still 155.2MB. Free memory was 128.4MB in the beginning and 127.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 12:13:29,580 INFO L158 Benchmark]: Boogie Preprocessor took 29.99ms. Allocated memory is still 155.2MB. Free memory was 127.2MB in the beginning and 125.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 12:13:29,580 INFO L158 Benchmark]: RCFGBuilder took 217.43ms. Allocated memory is still 155.2MB. Free memory was 125.4MB in the beginning and 112.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 12:13:29,581 INFO L158 Benchmark]: TraceAbstraction took 18174.88ms. Allocated memory was 155.2MB in the beginning and 339.7MB in the end (delta: 184.5MB). Free memory was 112.5MB in the beginning and 109.2MB in the end (delta: 3.3MB). Peak memory consumption was 193.1MB. Max. memory is 16.1GB. [2024-11-09 12:13:29,581 INFO L158 Benchmark]: Witness Printer took 87.10ms. Allocated memory is still 339.7MB. Free memory was 109.2MB in the beginning and 306.1MB in the end (delta: -196.9MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2024-11-09 12:13:29,582 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70ms. Allocated memory is still 155.2MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.63ms. Allocated memory is still 155.2MB. Free memory was 86.0MB in the beginning and 128.4MB in the end (delta: -42.3MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.67ms. Allocated memory is still 155.2MB. Free memory was 128.4MB in the beginning and 127.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.99ms. Allocated memory is still 155.2MB. Free memory was 127.2MB in the beginning and 125.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 217.43ms. Allocated memory is still 155.2MB. Free memory was 125.4MB in the beginning and 112.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 18174.88ms. Allocated memory was 155.2MB in the beginning and 339.7MB in the end (delta: 184.5MB). Free memory was 112.5MB in the beginning and 109.2MB in the end (delta: 3.3MB). Peak memory consumption was 193.1MB. Max. memory is 16.1GB. * Witness Printer took 87.10ms. Allocated memory is still 339.7MB. Free memory was 109.2MB in the beginning and 306.1MB in the end (delta: -196.9MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 16.5s, OverallIterations: 29, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1305 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1250 mSDsluCounter, 6492 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5440 mSDsCounter, 423 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6145 IncrementalHoareTripleChecker+Invalid, 6568 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 423 mSolverCounterUnsat, 1052 mSDtfsCounter, 6145 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2762 GetRequests, 2259 SyntacticMatches, 81 SemanticMatches, 422 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3121 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=19, InterpolantAutomatonStates: 324, 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, 29 MinimizatonAttempts, 355 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 2772 NumberOfCodeBlocks, 2772 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 3729 ConstructedInterpolants, 0 QuantifiedInterpolants, 7515 SizeOfPredicates, 28 NumberOfNonLiveVariables, 2463 ConjunctsInSsa, 174 ConjunctsInUnsatCore, 57 InterpolantComputations, 17 PerfectInterpolantSequences, 3754/4531 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 - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - ProcedureContractResult [Line: 19]: Procedure Contract for fibo2 Derived contract for procedure fibo2. Requires: (n <= 4) Ensures: ((\result == 1) || (2 != n)) - ProcedureContractResult [Line: 9]: Procedure Contract for fibo1 Derived contract for procedure fibo1. Requires: ((n < 4) || (5 == n)) Ensures: ((((((2 == \result) || (3 != n)) && ((n < 4) || (5 == n))) && (((((3 == n) || ((\result <= 1) && (0 <= ((long long) \result + 1)))) || ((\result == 0) && (n <= 0))) || (3 < n)) || ((n <= 1) && (\result == 1)))) && ((\result == 0) || (0 < n))) && (((1 < n) || ((\result == 0) && (n <= 0))) || (\result == 1))) RESULT: Ultimate proved your program to be correct! [2024-11-09 12:13:29,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE