./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_10-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_10-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya --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 a6546395432109233bf3e1991428a566548dd822bb23ca198622322bf4db5a8a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:12:54,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:12:54,445 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 06:12:54,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:12:54,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:12:54,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:12:54,473 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:12:54,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:12:54,475 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:12:54,475 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:12:54,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:12:54,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:12:54,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:12:54,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:12:54,478 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:12:54,479 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:12:54,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:12:54,480 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:12:54,480 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:12:54,481 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:12:54,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:12:54,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:12:54,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:12:54,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:12:54,483 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:12:54,484 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:12:54,484 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:12:54,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:12:54,485 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:12:54,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:12:54,486 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:12:54,487 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:12:54,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:12:54,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:12:54,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:12:54,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:12:54,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:12:54,488 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:12:54,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:12:54,489 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:12:54,489 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:12:54,489 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:12:54,490 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:12:54,490 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:12:54,490 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6546395432109233bf3e1991428a566548dd822bb23ca198622322bf4db5a8a [2023-11-29 06:12:54,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:12:54,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:12:54,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:12:54,767 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:12:54,767 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:12:54,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/recursive-simple/fibo_10-2.c [2023-11-29 06:12:57,532 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:12:57,684 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:12:57,685 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/sv-benchmarks/c/recursive-simple/fibo_10-2.c [2023-11-29 06:12:57,691 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/data/03f633097/06444d37b8e64906842ba582cc04406d/FLAG67bf4578e [2023-11-29 06:12:57,706 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/data/03f633097/06444d37b8e64906842ba582cc04406d [2023-11-29 06:12:57,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:12:57,710 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:12:57,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:12:57,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:12:57,717 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:12:57,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:12:57" (1/1) ... [2023-11-29 06:12:57,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3768458a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57, skipping insertion in model container [2023-11-29 06:12:57,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:12:57" (1/1) ... [2023-11-29 06:12:57,739 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:12:57,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:12:57,900 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:12:57,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:12:57,929 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:12:57,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57 WrapperNode [2023-11-29 06:12:57,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:12:57,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:12:57,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:12:57,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:12:57,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57" (1/1) ... [2023-11-29 06:12:57,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57" (1/1) ... [2023-11-29 06:12:57,961 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2023-11-29 06:12:57,962 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:12:57,962 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:12:57,963 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:12:57,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:12:57,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57" (1/1) ... [2023-11-29 06:12:57,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57" (1/1) ... [2023-11-29 06:12:57,975 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57" (1/1) ... [2023-11-29 06:12:57,986 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]. [2023-11-29 06:12:57,987 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57" (1/1) ... [2023-11-29 06:12:57,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57" (1/1) ... [2023-11-29 06:12:57,989 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57" (1/1) ... [2023-11-29 06:12:57,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57" (1/1) ... [2023-11-29 06:12:57,992 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57" (1/1) ... [2023-11-29 06:12:57,993 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57" (1/1) ... [2023-11-29 06:12:57,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:12:57,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:12:57,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:12:57,995 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:12:57,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57" (1/1) ... [2023-11-29 06:12:58,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:12:58,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:12:58,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:12:58,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:12:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:12:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:12:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:12:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:12:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2023-11-29 06:12:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2023-11-29 06:12:58,125 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:12:58,127 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:12:58,238 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:12:58,261 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:12:58,261 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 06:12:58,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:12:58 BoogieIcfgContainer [2023-11-29 06:12:58,262 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:12:58,266 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:12:58,266 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:12:58,269 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:12:58,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:12:57" (1/3) ... [2023-11-29 06:12:58,270 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe567a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:12:58, skipping insertion in model container [2023-11-29 06:12:58,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:12:57" (2/3) ... [2023-11-29 06:12:58,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe567a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:12:58, skipping insertion in model container [2023-11-29 06:12:58,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:12:58" (3/3) ... [2023-11-29 06:12:58,273 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_10-2.c [2023-11-29 06:12:58,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:12:58,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 06:12:58,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:12:58,350 INFO L357 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, mHoare=true, 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;@19af6dc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:12:58,350 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-29 06:12:58,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 16 states have (on average 1.5625) internal successors, (25), 22 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:12:58,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 06:12:58,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:12:58,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 06:12:58,364 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:12:58,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:12:58,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1905229472, now seen corresponding path program 1 times [2023-11-29 06:12:58,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:12:58,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692413003] [2023-11-29 06:12:58,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:12:58,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:12:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:12:58,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:12:58,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:12:58,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692413003] [2023-11-29 06:12:58,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692413003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:12:58,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:12:58,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:12:58,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31685743] [2023-11-29 06:12:58,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:12:58,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:12:58,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:12:58,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:12:58,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:12:58,593 INFO L87 Difference]: Start difference. First operand has 27 states, 16 states have (on average 1.5625) internal successors, (25), 22 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:12:58,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:12:58,645 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2023-11-29 06:12:58,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:12:58,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 06:12:58,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:12:58,655 INFO L225 Difference]: With dead ends: 31 [2023-11-29 06:12:58,655 INFO L226 Difference]: Without dead ends: 23 [2023-11-29 06:12:58,658 INFO L412 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 [2023-11-29 06:12:58,662 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 14 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:12:58,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 30 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:12:58,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-29 06:12:58,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2023-11-29 06:12:58,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:12:58,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2023-11-29 06:12:58,702 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 6 [2023-11-29 06:12:58,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:12:58,703 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2023-11-29 06:12:58,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:12:58,703 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-11-29 06:12:58,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 06:12:58,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:12:58,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:12:58,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:12:58,705 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:12:58,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:12:58,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1067428573, now seen corresponding path program 1 times [2023-11-29 06:12:58,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:12:58,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742102845] [2023-11-29 06:12:58,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:12:58,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:12:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:12:58,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:12:58,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:12:58,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742102845] [2023-11-29 06:12:58,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742102845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:12:58,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:12:58,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:12:58,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068185451] [2023-11-29 06:12:58,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:12:58,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:12:58,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:12:58,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:12:58,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:12:58,781 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:12:58,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:12:58,839 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2023-11-29 06:12:58,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:12:58,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 06:12:58,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:12:58,841 INFO L225 Difference]: With dead ends: 21 [2023-11-29 06:12:58,841 INFO L226 Difference]: Without dead ends: 19 [2023-11-29 06:12:58,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:12:58,843 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 28 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:12:58,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 19 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:12:58,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-29 06:12:58,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-29 06:12:58,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:12:58,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2023-11-29 06:12:58,850 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 7 [2023-11-29 06:12:58,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:12:58,850 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2023-11-29 06:12:58,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:12:58,851 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-29 06:12:58,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 06:12:58,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:12:58,852 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:12:58,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:12:58,853 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:12:58,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:12:58,853 INFO L85 PathProgramCache]: Analyzing trace with hash 803661136, now seen corresponding path program 1 times [2023-11-29 06:12:58,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:12:58,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326698111] [2023-11-29 06:12:58,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:12:58,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:12:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:12:58,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 06:12:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:12:59,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:12:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:12:59,033 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:12:59,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:12:59,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326698111] [2023-11-29 06:12:59,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326698111] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:12:59,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:12:59,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:12:59,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258121486] [2023-11-29 06:12:59,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:12:59,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:12:59,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:12:59,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:12:59,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:12:59,037 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2023-11-29 06:12:59,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:12:59,079 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2023-11-29 06:12:59,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:12:59,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2023-11-29 06:12:59,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:12:59,081 INFO L225 Difference]: With dead ends: 35 [2023-11-29 06:12:59,081 INFO L226 Difference]: Without dead ends: 33 [2023-11-29 06:12:59,082 INFO L412 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 [2023-11-29 06:12:59,083 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:12:59,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 46 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:12:59,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-29 06:12:59,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2023-11-29 06:12:59,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:12:59,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2023-11-29 06:12:59,094 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 22 [2023-11-29 06:12:59,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:12:59,095 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2023-11-29 06:12:59,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2023-11-29 06:12:59,095 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-11-29 06:12:59,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 06:12:59,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:12:59,097 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:12:59,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:12:59,098 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:12:59,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:12:59,099 INFO L85 PathProgramCache]: Analyzing trace with hash -844470953, now seen corresponding path program 1 times [2023-11-29 06:12:59,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:12:59,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525794240] [2023-11-29 06:12:59,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:12:59,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:12:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:12:59,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 06:12:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:12:59,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:12:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:12:59,236 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 06:12:59,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:12:59,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525794240] [2023-11-29 06:12:59,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525794240] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:12:59,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003065061] [2023-11-29 06:12:59,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:12:59,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:12:59,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:12:59,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:12:59,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:12:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:12:59,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:12:59,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:12:59,402 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:12:59,403 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:12:59,525 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:12:59,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003065061] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:12:59,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:12:59,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2023-11-29 06:12:59,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524459772] [2023-11-29 06:12:59,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:12:59,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:12:59,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:12:59,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:12:59,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:12:59,529 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 7 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 06:12:59,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:12:59,891 INFO L93 Difference]: Finished difference Result 125 states and 171 transitions. [2023-11-29 06:12:59,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:12:59,892 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 7 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 23 [2023-11-29 06:12:59,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:12:59,894 INFO L225 Difference]: With dead ends: 125 [2023-11-29 06:12:59,895 INFO L226 Difference]: Without dead ends: 92 [2023-11-29 06:12:59,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:12:59,898 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 126 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:12:59,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 138 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:12:59,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-29 06:12:59,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 80. [2023-11-29 06:12:59,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 61 states have (on average 1.1147540983606556) internal successors, (68), 63 states have internal predecessors, (68), 11 states have call successors, (11), 3 states have call predecessors, (11), 6 states have return successors, (32), 13 states have call predecessors, (32), 10 states have call successors, (32) [2023-11-29 06:12:59,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 111 transitions. [2023-11-29 06:12:59,922 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 111 transitions. Word has length 23 [2023-11-29 06:12:59,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:12:59,922 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 111 transitions. [2023-11-29 06:12:59,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 7 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 06:12:59,923 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 111 transitions. [2023-11-29 06:12:59,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 06:12:59,924 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:12:59,924 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:12:59,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:13:00,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:13:00,125 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:13:00,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:13:00,126 INFO L85 PathProgramCache]: Analyzing trace with hash 2139513579, now seen corresponding path program 2 times [2023-11-29 06:13:00,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:13:00,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503728075] [2023-11-29 06:13:00,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:13:00,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:13:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:00,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:13:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:00,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 06:13:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:00,247 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 06:13:00,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:13:00,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503728075] [2023-11-29 06:13:00,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503728075] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:13:00,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46988834] [2023-11-29 06:13:00,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:13:00,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:13:00,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:13:00,251 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:13:00,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:13:00,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:13:00,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:13:00,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:13:00,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:13:00,350 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 06:13:00,350 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:13:00,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46988834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:13:00,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:13:00,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-29 06:13:00,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053090486] [2023-11-29 06:13:00,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:13:00,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:13:00,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:13:00,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:13:00,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:13:00,353 INFO L87 Difference]: Start difference. First operand 80 states and 111 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:13:00,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:13:00,387 INFO L93 Difference]: Finished difference Result 101 states and 140 transitions. [2023-11-29 06:13:00,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:13:00,387 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2023-11-29 06:13:00,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:13:00,390 INFO L225 Difference]: With dead ends: 101 [2023-11-29 06:13:00,390 INFO L226 Difference]: Without dead ends: 100 [2023-11-29 06:13:00,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:13:00,391 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:13:00,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 53 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:13:00,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-29 06:13:00,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 86. [2023-11-29 06:13:00,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 66 states have (on average 1.106060606060606) internal successors, (73), 67 states have internal predecessors, (73), 11 states have call successors, (11), 3 states have call predecessors, (11), 7 states have return successors, (39), 15 states have call predecessors, (39), 10 states have call successors, (39) [2023-11-29 06:13:00,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 123 transitions. [2023-11-29 06:13:00,414 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 123 transitions. Word has length 29 [2023-11-29 06:13:00,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:13:00,414 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 123 transitions. [2023-11-29 06:13:00,415 INFO L496 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:13:00,415 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 123 transitions. [2023-11-29 06:13:00,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 06:13:00,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:13:00,416 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:13:00,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:13:00,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:13:00,621 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:13:00,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:13:00,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1900411582, now seen corresponding path program 1 times [2023-11-29 06:13:00,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:13:00,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479274189] [2023-11-29 06:13:00,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:13:00,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:13:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:00,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:13:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:00,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 06:13:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 06:13:00,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:13:00,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479274189] [2023-11-29 06:13:00,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479274189] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:13:00,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216131104] [2023-11-29 06:13:00,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:13:00,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:13:00,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:13:00,704 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:13:00,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:13:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:00,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:13:00,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:13:00,866 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:13:00,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:13:01,013 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:13:01,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216131104] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:13:01,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:13:01,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2023-11-29 06:13:01,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502210809] [2023-11-29 06:13:01,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:13:01,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 06:13:01,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:13:01,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 06:13:01,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:13:01,017 INFO L87 Difference]: Start difference. First operand 86 states and 123 transitions. Second operand has 19 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 15 states have internal predecessors, (56), 9 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 06:13:01,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:13:01,667 INFO L93 Difference]: Finished difference Result 292 states and 458 transitions. [2023-11-29 06:13:01,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 06:13:01,668 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 15 states have internal predecessors, (56), 9 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 30 [2023-11-29 06:13:01,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:13:01,671 INFO L225 Difference]: With dead ends: 292 [2023-11-29 06:13:01,671 INFO L226 Difference]: Without dead ends: 214 [2023-11-29 06:13:01,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=822, Unknown=0, NotChecked=0, Total=992 [2023-11-29 06:13:01,676 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 137 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:13:01,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 297 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:13:01,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-11-29 06:13:01,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 174. [2023-11-29 06:13:01,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 136 states have (on average 1.0955882352941178) internal successors, (149), 136 states have internal predecessors, (149), 22 states have call successors, (22), 6 states have call predecessors, (22), 14 states have return successors, (83), 31 states have call predecessors, (83), 21 states have call successors, (83) [2023-11-29 06:13:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 254 transitions. [2023-11-29 06:13:01,725 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 254 transitions. Word has length 30 [2023-11-29 06:13:01,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:13:01,726 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 254 transitions. [2023-11-29 06:13:01,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 15 states have internal predecessors, (56), 9 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 06:13:01,726 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 254 transitions. [2023-11-29 06:13:01,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 06:13:01,729 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:13:01,729 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:13:01,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:13:01,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 06:13:01,934 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:13:01,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:13:01,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1808746357, now seen corresponding path program 1 times [2023-11-29 06:13:01,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:13:01,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929180085] [2023-11-29 06:13:01,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:13:01,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:13:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:02,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 06:13:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:02,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 06:13:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:02,033 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-11-29 06:13:02,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:13:02,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929180085] [2023-11-29 06:13:02,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929180085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:13:02,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:13:02,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:13:02,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400183255] [2023-11-29 06:13:02,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:13:02,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:13:02,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:13:02,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:13:02,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:13:02,035 INFO L87 Difference]: Start difference. First operand 174 states and 254 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:13:02,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:13:02,082 INFO L93 Difference]: Finished difference Result 190 states and 276 transitions. [2023-11-29 06:13:02,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:13:02,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2023-11-29 06:13:02,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:13:02,086 INFO L225 Difference]: With dead ends: 190 [2023-11-29 06:13:02,086 INFO L226 Difference]: Without dead ends: 189 [2023-11-29 06:13:02,087 INFO L412 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 [2023-11-29 06:13:02,087 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 4 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:13:02,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 94 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:13:02,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-11-29 06:13:02,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 181. [2023-11-29 06:13:02,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 142 states have (on average 1.091549295774648) internal successors, (155), 141 states have internal predecessors, (155), 23 states have call successors, (23), 6 states have call predecessors, (23), 14 states have return successors, (89), 33 states have call predecessors, (89), 22 states have call successors, (89) [2023-11-29 06:13:02,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 267 transitions. [2023-11-29 06:13:02,117 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 267 transitions. Word has length 49 [2023-11-29 06:13:02,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:13:02,118 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 267 transitions. [2023-11-29 06:13:02,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:13:02,118 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 267 transitions. [2023-11-29 06:13:02,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 06:13:02,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:13:02,122 INFO L195 NwaCegarLoop]: trace histogram [10, 8, 7, 7, 7, 7, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 06:13:02,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 06:13:02,122 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:13:02,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:13:02,123 INFO L85 PathProgramCache]: Analyzing trace with hash 603699881, now seen corresponding path program 1 times [2023-11-29 06:13:02,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:13:02,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548260520] [2023-11-29 06:13:02,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:13:02,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:13:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:02,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 06:13:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:02,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 06:13:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:02,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:02,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:02,225 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-29 06:13:02,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:13:02,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548260520] [2023-11-29 06:13:02,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548260520] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:13:02,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944203450] [2023-11-29 06:13:02,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:13:02,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:13:02,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:13:02,227 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:13:02,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:13:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:02,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:13:02,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:13:02,544 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 78 proven. 102 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 06:13:02,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:13:02,918 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 2 proven. 181 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:13:02,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944203450] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:13:02,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:13:02,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 17, 17] total 28 [2023-11-29 06:13:02,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818818914] [2023-11-29 06:13:02,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:13:02,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 06:13:02,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:13:02,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 06:13:02,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2023-11-29 06:13:02,922 INFO L87 Difference]: Start difference. First operand 181 states and 267 transitions. Second operand has 28 states, 26 states have (on average 3.423076923076923) internal successors, (89), 19 states have internal predecessors, (89), 14 states have call successors, (19), 11 states have call predecessors, (19), 4 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 06:13:03,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:13:03,695 INFO L93 Difference]: Finished difference Result 557 states and 906 transitions. [2023-11-29 06:13:03,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 06:13:03,696 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 3.423076923076923) internal successors, (89), 19 states have internal predecessors, (89), 14 states have call successors, (19), 11 states have call predecessors, (19), 4 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) Word has length 72 [2023-11-29 06:13:03,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:13:03,700 INFO L225 Difference]: With dead ends: 557 [2023-11-29 06:13:03,700 INFO L226 Difference]: Without dead ends: 390 [2023-11-29 06:13:03,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 131 SyntacticMatches, 7 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=318, Invalid=1242, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 06:13:03,706 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 326 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:13:03,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 597 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:13:03,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-11-29 06:13:03,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 355. [2023-11-29 06:13:03,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 280 states have (on average 1.0964285714285715) internal successors, (307), 278 states have internal predecessors, (307), 45 states have call successors, (45), 13 states have call predecessors, (45), 28 states have return successors, (136), 63 states have call predecessors, (136), 44 states have call successors, (136) [2023-11-29 06:13:03,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 488 transitions. [2023-11-29 06:13:03,751 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 488 transitions. Word has length 72 [2023-11-29 06:13:03,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:13:03,751 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 488 transitions. [2023-11-29 06:13:03,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 3.423076923076923) internal successors, (89), 19 states have internal predecessors, (89), 14 states have call successors, (19), 11 states have call predecessors, (19), 4 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 06:13:03,751 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 488 transitions. [2023-11-29 06:13:03,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 06:13:03,755 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:13:03,755 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 10, 10, 10, 10, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 06:13:03,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:13:03,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:13:03,960 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:13:03,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:13:03,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1754244090, now seen corresponding path program 2 times [2023-11-29 06:13:03,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:13:03,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084333528] [2023-11-29 06:13:03,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:13:03,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:13:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:04,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 06:13:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:04,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-29 06:13:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:04,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:04,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:13:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 06:13:04,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:13:04,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084333528] [2023-11-29 06:13:04,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084333528] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:13:04,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38727596] [2023-11-29 06:13:04,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:13:04,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:13:04,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:13:04,075 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:13:04,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:13:04,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:13:04,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:13:04,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:13:04,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:13:04,177 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 06:13:04,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:13:04,236 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 06:13:04,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38727596] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:13:04,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:13:04,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-11-29 06:13:04,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990609788] [2023-11-29 06:13:04,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:13:04,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:13:04,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:13:04,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:13:04,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:13:04,238 INFO L87 Difference]: Start difference. First operand 355 states and 488 transitions. Second operand has 11 states, 10 states have (on average 3.6) internal successors, (36), 11 states have internal predecessors, (36), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 06:13:04,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:13:04,301 INFO L93 Difference]: Finished difference Result 378 states and 513 transitions. [2023-11-29 06:13:04,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:13:04,302 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 11 states have internal predecessors, (36), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 91 [2023-11-29 06:13:04,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:13:04,305 INFO L225 Difference]: With dead ends: 378 [2023-11-29 06:13:04,305 INFO L226 Difference]: Without dead ends: 377 [2023-11-29 06:13:04,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:13:04,307 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 15 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:13:04,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 82 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:13:04,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-11-29 06:13:04,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 355. [2023-11-29 06:13:04,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 280 states have (on average 1.0964285714285715) internal successors, (307), 278 states have internal predecessors, (307), 45 states have call successors, (45), 13 states have call predecessors, (45), 28 states have return successors, (136), 63 states have call predecessors, (136), 44 states have call successors, (136) [2023-11-29 06:13:04,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 488 transitions. [2023-11-29 06:13:04,349 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 488 transitions. Word has length 91 [2023-11-29 06:13:04,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:13:04,350 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 488 transitions. [2023-11-29 06:13:04,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 11 states have internal predecessors, (36), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 06:13:04,350 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 488 transitions. [2023-11-29 06:13:04,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 06:13:04,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:13:04,352 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 10, 10, 10, 10, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 06:13:04,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:13:04,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:13:04,558 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:13:04,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:13:04,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1453008131, now seen corresponding path program 1 times [2023-11-29 06:13:04,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:13:04,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700862025] [2023-11-29 06:13:04,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:13:04,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:13:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:04,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 06:13:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:04,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-29 06:13:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:04,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:04,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:13:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:04,999 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 231 proven. 130 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 06:13:04,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:13:04,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700862025] [2023-11-29 06:13:04,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700862025] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:13:04,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905484970] [2023-11-29 06:13:04,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:13:05,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:13:05,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:13:05,001 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:13:05,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:13:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:05,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 06:13:05,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:13:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 227 proven. 133 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:13:05,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:13:05,531 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 227 proven. 133 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:13:05,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905484970] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:13:05,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:13:05,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23, 23] total 28 [2023-11-29 06:13:05,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329026974] [2023-11-29 06:13:05,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:13:05,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 06:13:05,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:13:05,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 06:13:05,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2023-11-29 06:13:05,534 INFO L87 Difference]: Start difference. First operand 355 states and 488 transitions. Second operand has 28 states, 27 states have (on average 3.074074074074074) internal successors, (83), 19 states have internal predecessors, (83), 13 states have call successors, (15), 10 states have call predecessors, (15), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 06:13:06,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:13:06,365 INFO L93 Difference]: Finished difference Result 563 states and 779 transitions. [2023-11-29 06:13:06,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 06:13:06,366 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.074074074074074) internal successors, (83), 19 states have internal predecessors, (83), 13 states have call successors, (15), 10 states have call predecessors, (15), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 92 [2023-11-29 06:13:06,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:13:06,368 INFO L225 Difference]: With dead ends: 563 [2023-11-29 06:13:06,368 INFO L226 Difference]: Without dead ends: 216 [2023-11-29 06:13:06,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 177 SyntacticMatches, 20 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1111 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1007, Invalid=2899, Unknown=0, NotChecked=0, Total=3906 [2023-11-29 06:13:06,373 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 683 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:13:06,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 155 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:13:06,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-11-29 06:13:06,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 193. [2023-11-29 06:13:06,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 153 states have (on average 1.1372549019607843) internal successors, (174), 153 states have internal predecessors, (174), 25 states have call successors, (25), 15 states have call predecessors, (25), 13 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 06:13:06,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 223 transitions. [2023-11-29 06:13:06,384 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 223 transitions. Word has length 92 [2023-11-29 06:13:06,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:13:06,385 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 223 transitions. [2023-11-29 06:13:06,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.074074074074074) internal successors, (83), 19 states have internal predecessors, (83), 13 states have call successors, (15), 10 states have call predecessors, (15), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 06:13:06,385 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 223 transitions. [2023-11-29 06:13:06,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 06:13:06,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:13:06,386 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 9, 9, 9, 9, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 06:13:06,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 06:13:06,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 06:13:06,587 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:13:06,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:13:06,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1790678057, now seen corresponding path program 2 times [2023-11-29 06:13:06,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:13:06,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512697004] [2023-11-29 06:13:06,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:13:06,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:13:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:06,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-29 06:13:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:06,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:06,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:06,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 06:13:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:06,745 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-11-29 06:13:06,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:13:06,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512697004] [2023-11-29 06:13:06,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512697004] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:13:06,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515801340] [2023-11-29 06:13:06,746 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:13:06,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:13:06,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:13:06,747 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:13:06,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 06:13:06,799 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:13:06,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:13:06,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:13:06,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:13:06,864 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2023-11-29 06:13:06,864 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:13:07,019 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-11-29 06:13:07,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515801340] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:13:07,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:13:07,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2023-11-29 06:13:07,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181353289] [2023-11-29 06:13:07,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:13:07,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:13:07,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:13:07,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:13:07,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:13:07,022 INFO L87 Difference]: Start difference. First operand 193 states and 223 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:13:07,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:13:07,095 INFO L93 Difference]: Finished difference Result 195 states and 223 transitions. [2023-11-29 06:13:07,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:13:07,095 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2023-11-29 06:13:07,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:13:07,097 INFO L225 Difference]: With dead ends: 195 [2023-11-29 06:13:07,097 INFO L226 Difference]: Without dead ends: 194 [2023-11-29 06:13:07,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 173 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:13:07,098 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:13:07,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 111 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:13:07,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-29 06:13:07,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 193. [2023-11-29 06:13:07,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 153 states have (on average 1.1241830065359477) internal successors, (172), 153 states have internal predecessors, (172), 25 states have call successors, (25), 15 states have call predecessors, (25), 13 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 06:13:07,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 221 transitions. [2023-11-29 06:13:07,108 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 221 transitions. Word has length 86 [2023-11-29 06:13:07,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:13:07,109 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 221 transitions. [2023-11-29 06:13:07,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:13:07,109 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 221 transitions. [2023-11-29 06:13:07,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 06:13:07,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:13:07,110 INFO L195 NwaCegarLoop]: trace histogram [15, 13, 10, 10, 10, 10, 8, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1] [2023-11-29 06:13:07,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 06:13:07,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 06:13:07,315 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:13:07,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:13:07,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1426265217, now seen corresponding path program 3 times [2023-11-29 06:13:07,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:13:07,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231663001] [2023-11-29 06:13:07,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:13:07,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:13:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:07,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 06:13:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:07,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:07,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:07,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:07,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:07,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 06:13:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:07,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:07,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:07,608 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 35 proven. 23 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2023-11-29 06:13:07,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:13:07,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231663001] [2023-11-29 06:13:07,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231663001] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:13:07,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239132149] [2023-11-29 06:13:07,609 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:13:07,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:13:07,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:13:07,610 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:13:07,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 06:13:07,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-29 06:13:07,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:13:07,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:13:07,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:13:07,731 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 60 proven. 4 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-11-29 06:13:07,731 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:13:07,906 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 60 proven. 4 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-11-29 06:13:07,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239132149] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:13:07,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:13:07,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 14 [2023-11-29 06:13:07,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793008525] [2023-11-29 06:13:07,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:13:07,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:13:07,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:13:07,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:13:07,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:13:07,909 INFO L87 Difference]: Start difference. First operand 193 states and 221 transitions. Second operand has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 5 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (10), 9 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:13:07,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:13:07,995 INFO L93 Difference]: Finished difference Result 193 states and 221 transitions. [2023-11-29 06:13:07,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:13:07,997 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 5 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (10), 9 states have call predecessors, (10), 5 states have call successors, (10) Word has length 118 [2023-11-29 06:13:07,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:13:07,999 INFO L225 Difference]: With dead ends: 193 [2023-11-29 06:13:07,999 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 06:13:07,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 250 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:13:08,000 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 9 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:13:08,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 146 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:13:08,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 06:13:08,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-29 06:13:08,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 153 states have (on average 1.0588235294117647) internal successors, (162), 152 states have internal predecessors, (162), 25 states have call successors, (25), 15 states have call predecessors, (25), 13 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 06:13:08,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 211 transitions. [2023-11-29 06:13:08,015 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 211 transitions. Word has length 118 [2023-11-29 06:13:08,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:13:08,015 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 211 transitions. [2023-11-29 06:13:08,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 5 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (10), 9 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:13:08,016 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 211 transitions. [2023-11-29 06:13:08,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 06:13:08,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:13:08,018 INFO L195 NwaCegarLoop]: trace histogram [20, 17, 14, 12, 12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 3, 1, 1, 1] [2023-11-29 06:13:08,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 06:13:08,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 06:13:08,223 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:13:08,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:13:08,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1914996354, now seen corresponding path program 3 times [2023-11-29 06:13:08,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:13:08,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230698461] [2023-11-29 06:13:08,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:13:08,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:13:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 06:13:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:13:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-29 06:13:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:08,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 78 proven. 135 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2023-11-29 06:13:08,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:13:08,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230698461] [2023-11-29 06:13:08,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230698461] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:13:08,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341971294] [2023-11-29 06:13:08,808 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:13:08,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:13:08,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:13:08,809 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:13:08,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 06:13:08,890 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-29 06:13:08,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:13:08,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 06:13:08,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:13:09,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 78 proven. 135 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2023-11-29 06:13:09,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:13:10,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 144 proven. 128 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2023-11-29 06:13:10,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341971294] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:13:10,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:13:10,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 17] total 26 [2023-11-29 06:13:10,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976155555] [2023-11-29 06:13:10,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:13:10,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-29 06:13:10,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:13:10,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-29 06:13:10,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-11-29 06:13:10,228 INFO L87 Difference]: Start difference. First operand 192 states and 211 transitions. Second operand has 27 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 27 states have internal predecessors, (70), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2023-11-29 06:13:10,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:13:10,315 INFO L93 Difference]: Finished difference Result 193 states and 211 transitions. [2023-11-29 06:13:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 06:13:10,316 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 27 states have internal predecessors, (70), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) Word has length 172 [2023-11-29 06:13:10,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:13:10,318 INFO L225 Difference]: With dead ends: 193 [2023-11-29 06:13:10,318 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 06:13:10,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 358 SyntacticMatches, 16 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2023-11-29 06:13:10,319 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:13:10,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 174 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:13:10,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 06:13:10,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-29 06:13:10,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 153 states have (on average 1.0392156862745099) internal successors, (159), 152 states have internal predecessors, (159), 25 states have call successors, (25), 15 states have call predecessors, (25), 13 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 06:13:10,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 208 transitions. [2023-11-29 06:13:10,333 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 208 transitions. Word has length 172 [2023-11-29 06:13:10,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:13:10,334 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 208 transitions. [2023-11-29 06:13:10,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 27 states have internal predecessors, (70), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2023-11-29 06:13:10,334 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 208 transitions. [2023-11-29 06:13:10,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2023-11-29 06:13:10,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:13:10,342 INFO L195 NwaCegarLoop]: trace histogram [44, 40, 36, 23, 23, 23, 23, 20, 20, 20, 20, 20, 20, 20, 20, 19, 13, 8, 1, 1, 1] [2023-11-29 06:13:10,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 06:13:10,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 06:13:10,543 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:13:10,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:13:10,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1438043800, now seen corresponding path program 4 times [2023-11-29 06:13:10,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:13:10,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041901323] [2023-11-29 06:13:10,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:13:10,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:13:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:12,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 06:13:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:12,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:12,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:13:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 06:13:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-29 06:13:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:13:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-29 06:13:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:13:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 06:13:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 6171 backedges. 820 proven. 1112 refuted. 0 times theorem prover too weak. 4239 trivial. 0 not checked. [2023-11-29 06:13:13,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:13:13,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041901323] [2023-11-29 06:13:13,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041901323] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:13:13,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025308827] [2023-11-29 06:13:13,650 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 06:13:13,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:13:13,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:13:13,651 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:13:13,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 06:13:13,824 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 06:13:13,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:13:13,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 81 conjunts are in the unsatisfiable core [2023-11-29 06:13:13,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:13:14,292 INFO L134 CoverageAnalysis]: Checked inductivity of 6171 backedges. 820 proven. 1112 refuted. 0 times theorem prover too weak. 4239 trivial. 0 not checked. [2023-11-29 06:13:14,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:13:21,570 INFO L134 CoverageAnalysis]: Checked inductivity of 6171 backedges. 1149 proven. 1015 refuted. 0 times theorem prover too weak. 4007 trivial. 0 not checked. [2023-11-29 06:13:21,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025308827] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:13:21,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:13:21,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 29] total 40 [2023-11-29 06:13:21,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739092033] [2023-11-29 06:13:21,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:13:21,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-11-29 06:13:21,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:13:21,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-11-29 06:13:21,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 06:13:21,574 INFO L87 Difference]: Start difference. First operand 192 states and 208 transitions. Second operand has 41 states, 40 states have (on average 2.6) internal successors, (104), 41 states have internal predecessors, (104), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2023-11-29 06:13:21,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:13:21,668 INFO L93 Difference]: Finished difference Result 193 states and 208 transitions. [2023-11-29 06:13:21,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 06:13:21,669 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.6) internal successors, (104), 41 states have internal predecessors, (104), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) Word has length 415 [2023-11-29 06:13:21,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:13:21,671 INFO L225 Difference]: With dead ends: 193 [2023-11-29 06:13:21,671 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 06:13:21,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 990 GetRequests, 888 SyntacticMatches, 62 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2223 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=381, Invalid=1341, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 06:13:21,672 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:13:21,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 149 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:13:21,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 06:13:21,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-29 06:13:21,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 153 states have (on average 1.0130718954248366) internal successors, (155), 152 states have internal predecessors, (155), 25 states have call successors, (25), 15 states have call predecessors, (25), 13 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 06:13:21,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 204 transitions. [2023-11-29 06:13:21,683 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 204 transitions. Word has length 415 [2023-11-29 06:13:21,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:13:21,684 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 204 transitions. [2023-11-29 06:13:21,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.6) internal successors, (104), 41 states have internal predecessors, (104), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2023-11-29 06:13:21,684 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 204 transitions. [2023-11-29 06:13:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1071 [2023-11-29 06:13:21,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:13:21,708 INFO L195 NwaCegarLoop]: trace histogram [110, 108, 89, 55, 55, 55, 55, 54, 54, 54, 54, 54, 54, 54, 54, 53, 34, 21, 1, 1, 1] [2023-11-29 06:13:21,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 06:13:21,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 06:13:21,909 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:13:21,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:13:21,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1534660571, now seen corresponding path program 5 times [2023-11-29 06:13:21,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:13:21,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607041566] [2023-11-29 06:13:21,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:13:21,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:13:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:30,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:13:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:32,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:32,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:13:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 06:13:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-29 06:13:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:13:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-29 06:13:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:13:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 06:13:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:33,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2023-11-29 06:13:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:13:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 06:13:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-29 06:13:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:13:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:34,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2023-11-29 06:13:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:13:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 06:13:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-29 06:13:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:13:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:35,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-29 06:13:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:13:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 06:13:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:13:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:13:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:13:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:13:36,212 INFO L134 CoverageAnalysis]: Checked inductivity of 41934 backedges. 6686 proven. 7855 refuted. 0 times theorem prover too weak. 27393 trivial. 0 not checked. [2023-11-29 06:13:36,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:13:36,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607041566] [2023-11-29 06:13:36,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607041566] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:13:36,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382051237] [2023-11-29 06:13:36,213 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 06:13:36,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:13:36,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:13:36,214 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:13:36,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 06:13:36,785 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 76 check-sat command(s) [2023-11-29 06:13:36,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:13:36,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 1998 conjuncts, 217 conjunts are in the unsatisfiable core [2023-11-29 06:13:36,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:13:37,749 INFO L134 CoverageAnalysis]: Checked inductivity of 41934 backedges. 6686 proven. 7855 refuted. 0 times theorem prover too weak. 27393 trivial. 0 not checked. [2023-11-29 06:13:37,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:14:27,492 INFO L134 CoverageAnalysis]: Checked inductivity of 41934 backedges. 7863 proven. 7392 refuted. 0 times theorem prover too weak. 26679 trivial. 0 not checked. [2023-11-29 06:14:27,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382051237] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:14:27,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:14:27,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 41] total 54 [2023-11-29 06:14:27,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035394436] [2023-11-29 06:14:27,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:14:27,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-11-29 06:14:27,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:14:27,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-11-29 06:14:27,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=642, Invalid=2328, Unknown=0, NotChecked=0, Total=2970 [2023-11-29 06:14:27,499 INFO L87 Difference]: Start difference. First operand 192 states and 204 transitions. Second operand has 55 states, 54 states have (on average 2.5555555555555554) internal successors, (138), 55 states have internal predecessors, (138), 15 states have call successors, (16), 1 states have call predecessors, (16), 15 states have return successors, (38), 38 states have call predecessors, (38), 15 states have call successors, (38) [2023-11-29 06:14:27,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:14:27,598 INFO L93 Difference]: Finished difference Result 192 states and 204 transitions. [2023-11-29 06:14:27,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 06:14:27,599 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 2.5555555555555554) internal successors, (138), 55 states have internal predecessors, (138), 15 states have call successors, (16), 1 states have call predecessors, (16), 15 states have return successors, (38), 38 states have call predecessors, (38), 15 states have call successors, (38) Word has length 1070 [2023-11-29 06:14:27,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:14:27,602 INFO L225 Difference]: With dead ends: 192 [2023-11-29 06:14:27,602 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 06:14:27,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2572 GetRequests, 2326 SyntacticMatches, 192 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7409 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=660, Invalid=2420, Unknown=0, NotChecked=0, Total=3080 [2023-11-29 06:14:27,604 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:14:27,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 124 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:14:27,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 06:14:27,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 06:14:27,606 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) [2023-11-29 06:14:27,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 06:14:27,606 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1070 [2023-11-29 06:14:27,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:14:27,607 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:14:27,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 2.5555555555555554) internal successors, (138), 55 states have internal predecessors, (138), 15 states have call successors, (16), 1 states have call predecessors, (16), 15 states have return successors, (38), 38 states have call predecessors, (38), 15 states have call successors, (38) [2023-11-29 06:14:27,607 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 06:14:27,607 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 06:14:27,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-29 06:14:27,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-29 06:14:27,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-29 06:14:27,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fiboErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-29 06:14:27,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-29 06:14:27,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-29 06:14:27,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 06:14:27,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 06:14:27,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 06:14:28,386 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 06:14:28,386 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 30) no Hoare annotation was computed. [2023-11-29 06:14:28,387 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (= |ULTIMATE.start_main_~x~0#1| 10) [2023-11-29 06:14:28,387 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-11-29 06:14:28,387 INFO L899 garLoopResultBuilder]: For program point L28-2(lines 28 30) no Hoare annotation was computed. [2023-11-29 06:14:28,387 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 06:14:28,387 INFO L899 garLoopResultBuilder]: For program point fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2023-11-29 06:14:28,387 INFO L899 garLoopResultBuilder]: For program point fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2023-11-29 06:14:28,387 INFO L899 garLoopResultBuilder]: For program point fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2023-11-29 06:14:28,387 INFO L899 garLoopResultBuilder]: For program point fiboFINAL(lines 7 15) no Hoare annotation was computed. [2023-11-29 06:14:28,387 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2023-11-29 06:14:28,387 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2023-11-29 06:14:28,388 INFO L895 garLoopResultBuilder]: At program point L13-2(line 13) the Hoare annotation is: (and (or (= fibo_~n |fibo_#in~n|) (< 10 |fibo_#in~n|)) (or (= fibo_~n 2) (< 2 |fibo_#in~n|))) [2023-11-29 06:14:28,388 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2023-11-29 06:14:28,388 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 15) the Hoare annotation is: true [2023-11-29 06:14:28,388 INFO L899 garLoopResultBuilder]: For program point L13-4(line 13) no Hoare annotation was computed. [2023-11-29 06:14:28,388 INFO L899 garLoopResultBuilder]: For program point L13-5(line 13) no Hoare annotation was computed. [2023-11-29 06:14:28,389 INFO L895 garLoopResultBuilder]: At program point L13-6(line 13) the Hoare annotation is: (let ((.cse2 (= |fibo_#t~ret4| 1)) (.cse0 (= fibo_~n |fibo_#in~n|)) (.cse1 (<= 2 |fibo_#t~ret4|))) (and (or (< 8 |fibo_#in~n|) (and (<= |fibo_#t~ret4| 13) .cse0 .cse1) (< |fibo_#in~n| 8)) (or (< 3 |fibo_#in~n|) (and .cse2 (= fibo_~n 3)) (<= |fibo_#in~n| 2)) (or (and (= 2 |fibo_#in~n|) (= fibo_~n 2) .cse2) (< 2 |fibo_#in~n|)) (or (and .cse0 .cse1 (<= |fibo_#t~ret4| 21)) (< |fibo_#in~n| 9) (< 9 |fibo_#in~n|)) (or (and .cse0 .cse1 (<= |fibo_#t~ret4| 3)) (< |fibo_#in~n| 5) (< 5 |fibo_#in~n|)) (or (and .cse0 (<= |fibo_#t~ret4| 2147483614) .cse1) (< 10 |fibo_#in~n|) (< |fibo_#in~n| 10)) (or (<= |fibo_#in~n| 3) (< 4 |fibo_#in~n|) (and (= |fibo_#t~ret4| 2) .cse0)) (or (< |fibo_#in~n| 7) (< 7 |fibo_#in~n|) (and (<= |fibo_#t~ret4| 8) .cse0 .cse1)) (or (< |fibo_#in~n| 6) (and (<= |fibo_#t~ret4| 5) .cse0 .cse1) (< 6 |fibo_#in~n|)))) [2023-11-29 06:14:28,389 INFO L899 garLoopResultBuilder]: For program point L13-7(line 13) no Hoare annotation was computed. [2023-11-29 06:14:28,389 INFO L899 garLoopResultBuilder]: For program point L13-8(line 13) no Hoare annotation was computed. [2023-11-29 06:14:28,389 INFO L899 garLoopResultBuilder]: For program point L13-9(line 13) no Hoare annotation was computed. [2023-11-29 06:14:28,389 INFO L899 garLoopResultBuilder]: For program point fiboEXIT(lines 7 15) no Hoare annotation was computed. [2023-11-29 06:14:28,389 INFO L899 garLoopResultBuilder]: For program point fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2023-11-29 06:14:28,390 INFO L899 garLoopResultBuilder]: For program point fiboErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2023-11-29 06:14:28,390 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 14) no Hoare annotation was computed. [2023-11-29 06:14:28,390 INFO L899 garLoopResultBuilder]: For program point L8(lines 8 14) no Hoare annotation was computed. [2023-11-29 06:14:28,390 INFO L899 garLoopResultBuilder]: For program point fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2023-11-29 06:14:28,393 INFO L445 BasicCegarLoop]: Path program histogram: [5, 3, 2, 1, 1, 1, 1, 1] [2023-11-29 06:14:28,395 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:14:28,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:14:28 BoogieIcfgContainer [2023-11-29 06:14:28,399 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:14:28,400 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:14:28,400 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:14:28,400 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:14:28,401 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:12:58" (3/4) ... [2023-11-29 06:14:28,402 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 06:14:28,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo [2023-11-29 06:14:28,410 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-29 06:14:28,410 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 06:14:28,411 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 06:14:28,411 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 06:14:28,489 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:14:28,489 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 06:14:28,489 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:14:28,490 INFO L158 Benchmark]: Toolchain (without parser) took 90779.80ms. Allocated memory was 127.9MB in the beginning and 813.7MB in the end (delta: 685.8MB). Free memory was 89.0MB in the beginning and 652.4MB in the end (delta: -563.4MB). Peak memory consumption was 123.5MB. Max. memory is 16.1GB. [2023-11-29 06:14:28,491 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 127.9MB. Free memory was 94.9MB in the beginning and 94.8MB in the end (delta: 29.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:14:28,491 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.11ms. Allocated memory is still 127.9MB. Free memory was 88.5MB in the beginning and 79.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 06:14:28,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.24ms. Allocated memory is still 127.9MB. Free memory was 79.1MB in the beginning and 77.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:14:28,492 INFO L158 Benchmark]: Boogie Preprocessor took 31.75ms. Allocated memory is still 127.9MB. Free memory was 77.5MB in the beginning and 75.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:14:28,492 INFO L158 Benchmark]: RCFGBuilder took 267.59ms. Allocated memory is still 127.9MB. Free memory was 75.9MB in the beginning and 65.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 06:14:28,493 INFO L158 Benchmark]: TraceAbstraction took 90133.69ms. Allocated memory was 127.9MB in the beginning and 813.7MB in the end (delta: 685.8MB). Free memory was 64.4MB in the beginning and 656.6MB in the end (delta: -592.2MB). Peak memory consumption was 94.1MB. Max. memory is 16.1GB. [2023-11-29 06:14:28,493 INFO L158 Benchmark]: Witness Printer took 89.80ms. Allocated memory is still 813.7MB. Free memory was 656.6MB in the beginning and 652.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:14:28,495 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 127.9MB. Free memory was 94.9MB in the beginning and 94.8MB in the end (delta: 29.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.11ms. Allocated memory is still 127.9MB. Free memory was 88.5MB in the beginning and 79.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.24ms. Allocated memory is still 127.9MB. Free memory was 79.1MB in the beginning and 77.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.75ms. Allocated memory is still 127.9MB. Free memory was 77.5MB in the beginning and 75.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 267.59ms. Allocated memory is still 127.9MB. Free memory was 75.9MB in the beginning and 65.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 90133.69ms. Allocated memory was 127.9MB in the beginning and 813.7MB in the end (delta: 685.8MB). Free memory was 64.4MB in the beginning and 656.6MB in the end (delta: -592.2MB). Peak memory consumption was 94.1MB. Max. memory is 16.1GB. * Witness Printer took 89.80ms. Allocated memory is still 813.7MB. Free memory was 656.6MB in the beginning and 652.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 90.1s, OverallIterations: 15, TraceHistogramMax: 110, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1397 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1371 mSDsluCounter, 2215 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1854 mSDsCounter, 340 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3176 IncrementalHoareTripleChecker+Invalid, 3516 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 340 mSolverCounterUnsat, 361 mSDtfsCounter, 3176 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5260 GetRequests, 4629 SyntacticMatches, 306 SemanticMatches, 325 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11963 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=355occurred in iteration=8, InterpolantAutomatonStates: 226, 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, 15 MinimizatonAttempts, 162 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 301 PreInvPairs, 326 NumberOfFragments, 164 HoareAnnotationTreeSize, 301 FomulaSimplifications, 1371 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 1041 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 81.3s InterpolantComputationTime, 4480 NumberOfCodeBlocks, 4375 NumberOfCodeBlocksAsserted, 119 NumberOfCheckSat, 6613 ConstructedInterpolants, 0 QuantifiedInterpolants, 15328 SizeOfPredicates, 23 NumberOfNonLiveVariables, 4083 ConjunctsInSsa, 404 ConjunctsInUnsatCore, 36 InterpolantComputations, 5 PerfectInterpolantSequences, 125463/153020 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 06:14:28,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606fa605-ce1d-4848-b24f-0692e235f7d1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE