./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_7-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_7-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB --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 40add90db9f8d501baba3978de407d6383e788a1a5fafc7225d7676b58d18c84 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:56:20,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:56:21,001 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:56:21,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:56:21,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:56:21,061 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:56:21,062 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:56:21,062 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:56:21,062 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:56:21,062 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:56:21,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:56:21,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:56:21,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:56:21,063 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:56:21,063 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:56:21,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:56:21,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:56:21,065 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:56:21,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:56:21,066 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:56:21,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:56:21,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:56:21,067 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:56:21,068 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:56:21,068 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:56:21,068 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:56:21,068 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:56:21,068 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:56:21,068 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:56:21,069 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:56:21,069 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:56:21,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:56:21,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:56:21,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:56:21,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:56:21,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:56:21,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:56:21,071 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:56:21,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:56:21,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:56:21,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:56:21,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:56:21,071 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:56:21,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:56:21,072 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:56:21,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:56:21,072 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:56:21,072 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:56:21,072 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:56:21,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:56:21,073 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 40add90db9f8d501baba3978de407d6383e788a1a5fafc7225d7676b58d18c84 [2024-11-28 04:56:21,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:56:21,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:56:21,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:56:21,487 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:56:21,487 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:56:21,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/recursive-simple/fibo_7-2.c [2024-11-28 04:56:24,856 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/data/4f1320c07/2e618de222074c3ca0f4052ed7090bd8/FLAG532dcc592 [2024-11-28 04:56:25,139 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:56:25,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/sv-benchmarks/c/recursive-simple/fibo_7-2.c [2024-11-28 04:56:25,160 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/data/4f1320c07/2e618de222074c3ca0f4052ed7090bd8/FLAG532dcc592 [2024-11-28 04:56:25,211 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/data/4f1320c07/2e618de222074c3ca0f4052ed7090bd8 [2024-11-28 04:56:25,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:56:25,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:56:25,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:56:25,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:56:25,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:56:25,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a175ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25, skipping insertion in model container [2024-11-28 04:56:25,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,249 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:56:25,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:56:25,438 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:56:25,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:56:25,471 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:56:25,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25 WrapperNode [2024-11-28 04:56:25,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:56:25,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:56:25,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:56:25,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:56:25,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,516 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2024-11-28 04:56:25,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:56:25,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:56:25,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:56:25,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:56:25,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,531 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,549 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:56:25,549 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,549 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,554 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,555 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:56:25,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:56:25,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:56:25,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:56:25,568 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25" (1/1) ... [2024-11-28 04:56:25,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:56:25,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:25,609 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:56:25,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:56:25,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:56:25,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:56:25,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:56:25,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:56:25,645 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2024-11-28 04:56:25,645 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2024-11-28 04:56:25,710 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:56:25,712 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:56:25,923 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-28 04:56:25,923 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:56:25,944 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:56:25,944 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:56:25,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:56:25 BoogieIcfgContainer [2024-11-28 04:56:25,945 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:56:25,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:56:25,948 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:56:25,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:56:25,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:56:25" (1/3) ... [2024-11-28 04:56:25,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe165cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:56:25, skipping insertion in model container [2024-11-28 04:56:25,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:25" (2/3) ... [2024-11-28 04:56:25,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe165cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:56:25, skipping insertion in model container [2024-11-28 04:56:25,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:56:25" (3/3) ... [2024-11-28 04:56:25,959 INFO L128 eAbstractionObserver]: Analyzing ICFG fibo_7-2.c [2024-11-28 04:56:25,981 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:56:25,985 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fibo_7-2.c that has 2 procedures, 32 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2024-11-28 04:56:26,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:56:26,068 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34b20b76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:56:26,068 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-28 04:56:26,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 27 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:56:26,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 04:56:26,081 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:26,082 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:26,083 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:56:26,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:26,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1842216079, now seen corresponding path program 1 times [2024-11-28 04:56:26,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:26,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022808523] [2024-11-28 04:56:26,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:26,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:26,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:56:26,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:26,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022808523] [2024-11-28 04:56:26,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022808523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:26,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:26,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:56:26,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18296168] [2024-11-28 04:56:26,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:26,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:56:26,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:26,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:56:26,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:56:26,402 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 27 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:56:26,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:26,463 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2024-11-28 04:56:26,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:56:26,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-28 04:56:26,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:26,474 INFO L225 Difference]: With dead ends: 38 [2024-11-28 04:56:26,474 INFO L226 Difference]: Without dead ends: 24 [2024-11-28 04:56:26,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:56:26,482 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 11 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:26,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 42 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:56:26,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-28 04:56:26,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2024-11-28 04:56:26,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:56:26,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-11-28 04:56:26,527 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 7 [2024-11-28 04:56:26,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:26,528 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-11-28 04:56:26,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:56:26,528 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-11-28 04:56:26,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 04:56:26,529 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:26,529 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:26,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:56:26,530 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:56:26,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:26,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1274123662, now seen corresponding path program 1 times [2024-11-28 04:56:26,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:26,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080524646] [2024-11-28 04:56:26,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:26,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:26,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:56:26,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:26,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080524646] [2024-11-28 04:56:26,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080524646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:26,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:26,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:56:26,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033933872] [2024-11-28 04:56:26,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:26,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:56:26,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:26,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:56:26,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:56:26,644 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:56:26,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:26,798 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2024-11-28 04:56:26,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:56:26,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-28 04:56:26,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:26,800 INFO L225 Difference]: With dead ends: 24 [2024-11-28 04:56:26,800 INFO L226 Difference]: Without dead ends: 22 [2024-11-28 04:56:26,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:56:26,802 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 26 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:26,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 29 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:56:26,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-28 04:56:26,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2024-11-28 04:56:26,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:56:26,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2024-11-28 04:56:26,811 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 8 [2024-11-28 04:56:26,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:26,811 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-11-28 04:56:26,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:56:26,812 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-11-28 04:56:26,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 04:56:26,813 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:26,813 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:26,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:56:26,813 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:56:26,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:26,814 INFO L85 PathProgramCache]: Analyzing trace with hash 572400255, now seen corresponding path program 1 times [2024-11-28 04:56:26,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:26,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130453796] [2024-11-28 04:56:26,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:26,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:27,143 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:56:27,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:27,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130453796] [2024-11-28 04:56:27,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130453796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:27,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:27,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:56:27,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780546272] [2024-11-28 04:56:27,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:27,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:56:27,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:27,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:56:27,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:56:27,150 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:56:27,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:27,243 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2024-11-28 04:56:27,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:56:27,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2024-11-28 04:56:27,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:27,247 INFO L225 Difference]: With dead ends: 34 [2024-11-28 04:56:27,248 INFO L226 Difference]: Without dead ends: 32 [2024-11-28 04:56:27,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:56:27,249 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:27,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 65 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:56:27,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-28 04:56:27,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2024-11-28 04:56:27,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:56:27,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2024-11-28 04:56:27,273 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 23 [2024-11-28 04:56:27,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:27,273 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2024-11-28 04:56:27,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:56:27,275 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2024-11-28 04:56:27,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:56:27,276 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:27,279 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:27,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:56:27,279 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:56:27,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:27,280 INFO L85 PathProgramCache]: Analyzing trace with hash 576376328, now seen corresponding path program 1 times [2024-11-28 04:56:27,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:27,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913918729] [2024-11-28 04:56:27,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:27,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:27,533 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 04:56:27,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:27,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913918729] [2024-11-28 04:56:27,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913918729] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:27,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359211906] [2024-11-28 04:56:27,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:27,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:27,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:27,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:27,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:56:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:27,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:56:27,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:27,809 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:56:27,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:28,051 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:56:28,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359211906] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:28,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:28,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-11-28 04:56:28,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026244357] [2024-11-28 04:56:28,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:28,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:56:28,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:28,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:56:28,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:56:28,059 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 15 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 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) [2024-11-28 04:56:28,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:28,766 INFO L93 Difference]: Finished difference Result 126 states and 180 transitions. [2024-11-28 04:56:28,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:56:28,768 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 7 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 24 [2024-11-28 04:56:28,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:28,772 INFO L225 Difference]: With dead ends: 126 [2024-11-28 04:56:28,773 INFO L226 Difference]: Without dead ends: 93 [2024-11-28 04:56:28,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:56:28,776 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 113 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:28,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 199 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:56:28,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-28 04:56:28,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 81. [2024-11-28 04:56:28,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 62 states have (on average 1.1129032258064515) internal successors, (69), 64 states have internal predecessors, (69), 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) [2024-11-28 04:56:28,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 112 transitions. [2024-11-28 04:56:28,822 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 112 transitions. Word has length 24 [2024-11-28 04:56:28,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:28,823 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 112 transitions. [2024-11-28 04:56:28,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 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) [2024-11-28 04:56:28,824 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 112 transitions. [2024-11-28 04:56:28,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 04:56:28,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:28,825 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:28,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:29,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:29,026 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:56:29,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:29,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1418214692, now seen corresponding path program 2 times [2024-11-28 04:56:29,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:29,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118591293] [2024-11-28 04:56:29,028 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:29,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:29,060 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:29,060 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:29,271 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:56:29,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:29,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118591293] [2024-11-28 04:56:29,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118591293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:29,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217759270] [2024-11-28 04:56:29,272 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:29,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:29,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:29,278 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:29,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:56:29,342 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:29,342 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:29,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:56:29,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:29,430 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:56:29,430 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:56:29,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217759270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:29,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:29,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-28 04:56:29,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343492392] [2024-11-28 04:56:29,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:29,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:56:29,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:29,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:56:29,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:56:29,432 INFO L87 Difference]: Start difference. First operand 81 states and 112 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:56:29,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:29,502 INFO L93 Difference]: Finished difference Result 101 states and 141 transitions. [2024-11-28 04:56:29,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:56:29,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2024-11-28 04:56:29,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:29,506 INFO L225 Difference]: With dead ends: 101 [2024-11-28 04:56:29,508 INFO L226 Difference]: Without dead ends: 100 [2024-11-28 04:56:29,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:56:29,509 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:29,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 61 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:56:29,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-28 04:56:29,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 87. [2024-11-28 04:56:29,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.1044776119402986) internal successors, (74), 68 states have internal predecessors, (74), 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) [2024-11-28 04:56:29,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2024-11-28 04:56:29,547 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 30 [2024-11-28 04:56:29,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:29,548 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2024-11-28 04:56:29,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:56:29,548 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2024-11-28 04:56:29,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 04:56:29,549 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:29,549 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:29,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:29,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:29,754 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:56:29,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:29,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1014982419, now seen corresponding path program 1 times [2024-11-28 04:56:29,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:29,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371485197] [2024-11-28 04:56:29,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:29,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:29,876 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:56:29,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:29,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371485197] [2024-11-28 04:56:29,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371485197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:29,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047150123] [2024-11-28 04:56:29,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:29,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:29,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:29,882 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:29,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:56:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:29,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:56:29,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:30,127 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:56:30,128 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:30,405 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:56:30,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047150123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:30,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:30,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-28 04:56:30,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289473537] [2024-11-28 04:56:30,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:30,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:56:30,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:30,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:56:30,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:56:30,411 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand has 19 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 15 states have internal predecessors, (57), 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) [2024-11-28 04:56:31,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:31,592 INFO L93 Difference]: Finished difference Result 287 states and 459 transitions. [2024-11-28 04:56:31,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:56:31,593 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 15 states have internal predecessors, (57), 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 31 [2024-11-28 04:56:31,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:31,597 INFO L225 Difference]: With dead ends: 287 [2024-11-28 04:56:31,597 INFO L226 Difference]: Without dead ends: 209 [2024-11-28 04:56:31,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:56:31,604 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 144 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:31,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 296 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:56:31,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-28 04:56:31,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 175. [2024-11-28 04:56:31,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 137 states have (on average 1.094890510948905) internal successors, (150), 137 states have internal predecessors, (150), 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) [2024-11-28 04:56:31,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 255 transitions. [2024-11-28 04:56:31,690 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 255 transitions. Word has length 31 [2024-11-28 04:56:31,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:31,691 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 255 transitions. [2024-11-28 04:56:31,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 15 states have internal predecessors, (57), 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) [2024-11-28 04:56:31,691 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 255 transitions. [2024-11-28 04:56:31,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-28 04:56:31,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:31,694 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:31,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:31,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:31,898 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:56:31,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:31,899 INFO L85 PathProgramCache]: Analyzing trace with hash -54807044, now seen corresponding path program 1 times [2024-11-28 04:56:31,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:31,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030824306] [2024-11-28 04:56:31,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:31,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:32,093 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-28 04:56:32,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:32,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030824306] [2024-11-28 04:56:32,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030824306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:32,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:32,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:56:32,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527145705] [2024-11-28 04:56:32,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:32,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:56:32,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:32,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:56:32,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:56:32,096 INFO L87 Difference]: Start difference. First operand 175 states and 255 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:56:32,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:32,181 INFO L93 Difference]: Finished difference Result 189 states and 277 transitions. [2024-11-28 04:56:32,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:56:32,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2024-11-28 04:56:32,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:32,184 INFO L225 Difference]: With dead ends: 189 [2024-11-28 04:56:32,185 INFO L226 Difference]: Without dead ends: 188 [2024-11-28 04:56:32,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:56:32,187 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:32,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 102 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:56:32,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-28 04:56:32,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 182. [2024-11-28 04:56:32,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 143 states have (on average 1.0909090909090908) internal successors, (156), 142 states have internal predecessors, (156), 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) [2024-11-28 04:56:32,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 268 transitions. [2024-11-28 04:56:32,260 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 268 transitions. Word has length 50 [2024-11-28 04:56:32,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:32,262 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 268 transitions. [2024-11-28 04:56:32,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:56:32,263 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 268 transitions. [2024-11-28 04:56:32,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-28 04:56:32,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:32,272 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 7, 7, 7, 7, 5, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:32,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:56:32,273 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:56:32,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:32,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1152688629, now seen corresponding path program 1 times [2024-11-28 04:56:32,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:32,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351624828] [2024-11-28 04:56:32,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:32,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:32,440 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-11-28 04:56:32,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:32,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351624828] [2024-11-28 04:56:32,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351624828] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:32,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356802109] [2024-11-28 04:56:32,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:32,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:32,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:32,448 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:32,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:56:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:32,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:56:32,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:32,858 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 122 proven. 75 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 04:56:32,861 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 35 proven. 182 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-28 04:56:33,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356802109] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:33,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:33,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 15, 15] total 19 [2024-11-28 04:56:33,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362638868] [2024-11-28 04:56:33,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:33,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:56:33,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:33,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:56:33,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:56:33,257 INFO L87 Difference]: Start difference. First operand 182 states and 268 transitions. Second operand has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 14 states have internal predecessors, (71), 9 states have call successors, (14), 7 states have call predecessors, (14), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:56:34,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:34,029 INFO L93 Difference]: Finished difference Result 453 states and 696 transitions. [2024-11-28 04:56:34,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:56:34,030 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 14 states have internal predecessors, (71), 9 states have call successors, (14), 7 states have call predecessors, (14), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 83 [2024-11-28 04:56:34,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:34,036 INFO L225 Difference]: With dead ends: 453 [2024-11-28 04:56:34,036 INFO L226 Difference]: Without dead ends: 286 [2024-11-28 04:56:34,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 144 SyntacticMatches, 12 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=140, Invalid=562, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:56:34,040 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 153 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:34,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 322 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:56:34,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-28 04:56:34,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 263. [2024-11-28 04:56:34,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 208 states have (on average 1.0913461538461537) internal successors, (227), 205 states have internal predecessors, (227), 33 states have call successors, (33), 9 states have call predecessors, (33), 20 states have return successors, (123), 48 states have call predecessors, (123), 32 states have call successors, (123) [2024-11-28 04:56:34,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 383 transitions. [2024-11-28 04:56:34,116 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 383 transitions. Word has length 83 [2024-11-28 04:56:34,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:34,116 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 383 transitions. [2024-11-28 04:56:34,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 14 states have internal predecessors, (71), 9 states have call successors, (14), 7 states have call predecessors, (14), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:56:34,116 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 383 transitions. [2024-11-28 04:56:34,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 04:56:34,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:34,122 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 8, 8, 8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:34,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:56:34,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:34,322 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:56:34,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:34,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1147856764, now seen corresponding path program 1 times [2024-11-28 04:56:34,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:34,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055465595] [2024-11-28 04:56:34,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:34,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:34,473 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-28 04:56:34,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:34,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055465595] [2024-11-28 04:56:34,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055465595] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:34,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979343949] [2024-11-28 04:56:34,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:34,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:34,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:34,476 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:34,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:56:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:34,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:56:34,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:35,013 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 136 proven. 106 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:56:35,014 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:35,465 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 136 proven. 106 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:56:35,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979343949] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:35,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:35,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 19, 19] total 26 [2024-11-28 04:56:35,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037476776] [2024-11-28 04:56:35,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:35,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 04:56:35,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:35,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 04:56:35,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=541, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:56:35,469 INFO L87 Difference]: Start difference. First operand 263 states and 383 transitions. Second operand has 26 states, 24 states have (on average 3.7083333333333335) internal successors, (89), 18 states have internal predecessors, (89), 13 states have call successors, (19), 9 states have call predecessors, (19), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:56:36,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:36,456 INFO L93 Difference]: Finished difference Result 504 states and 766 transitions. [2024-11-28 04:56:36,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-28 04:56:36,457 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.7083333333333335) internal successors, (89), 18 states have internal predecessors, (89), 13 states have call successors, (19), 9 states have call predecessors, (19), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 81 [2024-11-28 04:56:36,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:36,459 INFO L225 Difference]: With dead ends: 504 [2024-11-28 04:56:36,462 INFO L226 Difference]: Without dead ends: 258 [2024-11-28 04:56:36,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 132 SyntacticMatches, 13 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=580, Invalid=1676, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 04:56:36,467 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 352 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:36,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 155 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:56:36,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-28 04:56:36,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 243. [2024-11-28 04:56:36,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 192 states have (on average 1.0885416666666667) internal successors, (209), 191 states have internal predecessors, (209), 30 states have call successors, (30), 10 states have call predecessors, (30), 19 states have return successors, (58), 41 states have call predecessors, (58), 29 states have call successors, (58) [2024-11-28 04:56:36,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 297 transitions. [2024-11-28 04:56:36,499 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 297 transitions. Word has length 81 [2024-11-28 04:56:36,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:36,500 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 297 transitions. [2024-11-28 04:56:36,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.7083333333333335) internal successors, (89), 18 states have internal predecessors, (89), 13 states have call successors, (19), 9 states have call predecessors, (19), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:56:36,500 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 297 transitions. [2024-11-28 04:56:36,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 04:56:36,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:36,502 INFO L218 NwaCegarLoop]: trace histogram [9, 7, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:36,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:56:36,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:36,704 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:56:36,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:36,705 INFO L85 PathProgramCache]: Analyzing trace with hash -478574661, now seen corresponding path program 2 times [2024-11-28 04:56:36,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:36,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443990918] [2024-11-28 04:56:36,705 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:36,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:36,723 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:36,723 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 04:56:36,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:36,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443990918] [2024-11-28 04:56:36,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443990918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:36,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070540586] [2024-11-28 04:56:36,837 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:36,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:36,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:36,840 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:36,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:56:36,902 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:36,902 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:36,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:56:36,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 37 proven. 116 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:37,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 9 proven. 139 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:56:37,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070540586] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:37,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:37,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 16, 17] total 20 [2024-11-28 04:56:37,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760227336] [2024-11-28 04:56:37,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:37,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:56:37,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:37,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:56:37,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:56:37,606 INFO L87 Difference]: Start difference. First operand 243 states and 297 transitions. Second operand has 20 states, 19 states have (on average 3.789473684210526) internal successors, (72), 15 states have internal predecessors, (72), 12 states have call successors, (14), 7 states have call predecessors, (14), 4 states have return successors, (8), 2 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 04:56:38,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:38,040 INFO L93 Difference]: Finished difference Result 377 states and 470 transitions. [2024-11-28 04:56:38,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:56:38,041 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.789473684210526) internal successors, (72), 15 states have internal predecessors, (72), 12 states have call successors, (14), 7 states have call predecessors, (14), 4 states have return successors, (8), 2 states have call predecessors, (8), 7 states have call successors, (8) Word has length 68 [2024-11-28 04:56:38,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:38,042 INFO L225 Difference]: With dead ends: 377 [2024-11-28 04:56:38,043 INFO L226 Difference]: Without dead ends: 152 [2024-11-28 04:56:38,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 116 SyntacticMatches, 13 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=186, Invalid=516, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:56:38,046 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 154 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:38,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 273 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:56:38,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-28 04:56:38,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 145. [2024-11-28 04:56:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 114 states have (on average 1.1228070175438596) internal successors, (128), 116 states have internal predecessors, (128), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:56:38,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 165 transitions. [2024-11-28 04:56:38,062 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 165 transitions. Word has length 68 [2024-11-28 04:56:38,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:38,062 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 165 transitions. [2024-11-28 04:56:38,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.789473684210526) internal successors, (72), 15 states have internal predecessors, (72), 12 states have call successors, (14), 7 states have call predecessors, (14), 4 states have return successors, (8), 2 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 04:56:38,062 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 165 transitions. [2024-11-28 04:56:38,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 04:56:38,063 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:38,063 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:38,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:38,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 04:56:38,264 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:56:38,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:38,265 INFO L85 PathProgramCache]: Analyzing trace with hash -496981020, now seen corresponding path program 3 times [2024-11-28 04:56:38,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:38,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410812368] [2024-11-28 04:56:38,265 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:56:38,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:38,278 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:56:38,279 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:38,430 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-28 04:56:38,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:38,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410812368] [2024-11-28 04:56:38,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410812368] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:38,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230668051] [2024-11-28 04:56:38,430 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:56:38,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:38,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:38,433 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:38,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:56:38,484 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:56:38,484 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:38,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:56:38,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:38,603 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-11-28 04:56:38,603 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:38,879 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-28 04:56:38,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230668051] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:38,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:38,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 15 [2024-11-28 04:56:38,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124657634] [2024-11-28 04:56:38,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:38,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:56:38,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:38,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:56:38,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:56:38,884 INFO L87 Difference]: Start difference. First operand 145 states and 165 transitions. Second operand has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (9), 9 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:56:39,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:39,013 INFO L93 Difference]: Finished difference Result 146 states and 165 transitions. [2024-11-28 04:56:39,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:56:39,013 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (9), 9 states have call predecessors, (9), 4 states have call successors, (9) Word has length 69 [2024-11-28 04:56:39,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:39,015 INFO L225 Difference]: With dead ends: 146 [2024-11-28 04:56:39,015 INFO L226 Difference]: Without dead ends: 145 [2024-11-28 04:56:39,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:56:39,016 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:39,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 173 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:56:39,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-28 04:56:39,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-28 04:56:39,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 114 states have (on average 1.087719298245614) internal successors, (124), 116 states have internal predecessors, (124), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:56:39,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 161 transitions. [2024-11-28 04:56:39,030 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 161 transitions. Word has length 69 [2024-11-28 04:56:39,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:39,030 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 161 transitions. [2024-11-28 04:56:39,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.933333333333333) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (9), 9 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 04:56:39,030 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 161 transitions. [2024-11-28 04:56:39,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 04:56:39,031 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:39,032 INFO L218 NwaCegarLoop]: trace histogram [12, 10, 8, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-28 04:56:39,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:56:39,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 04:56:39,233 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:56:39,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:39,234 INFO L85 PathProgramCache]: Analyzing trace with hash -619858036, now seen corresponding path program 2 times [2024-11-28 04:56:39,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:39,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342894975] [2024-11-28 04:56:39,235 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:39,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:39,266 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:39,266 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:39,748 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 14 proven. 64 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2024-11-28 04:56:39,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:39,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342894975] [2024-11-28 04:56:39,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342894975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:39,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734610843] [2024-11-28 04:56:39,748 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:39,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:39,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:39,751 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:39,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:56:39,828 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:39,828 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:39,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:56:39,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:39,989 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 25 proven. 54 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-28 04:56:39,990 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:40,571 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 25 proven. 56 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-28 04:56:40,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734610843] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:40,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:40,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 21 [2024-11-28 04:56:40,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417086462] [2024-11-28 04:56:40,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:40,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:56:40,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:40,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:56:40,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:56:40,573 INFO L87 Difference]: Start difference. First operand 145 states and 161 transitions. Second operand has 22 states, 21 states have (on average 3.142857142857143) internal successors, (66), 22 states have internal predecessors, (66), 6 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (16), 13 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:56:40,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:40,726 INFO L93 Difference]: Finished difference Result 145 states and 161 transitions. [2024-11-28 04:56:40,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:56:40,727 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.142857142857143) internal successors, (66), 22 states have internal predecessors, (66), 6 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (16), 13 states have call predecessors, (16), 6 states have call successors, (16) Word has length 101 [2024-11-28 04:56:40,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:40,729 INFO L225 Difference]: With dead ends: 145 [2024-11-28 04:56:40,729 INFO L226 Difference]: Without dead ends: 144 [2024-11-28 04:56:40,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 194 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:56:40,731 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 8 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:40,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 177 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:56:40,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-28 04:56:40,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-28 04:56:40,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 114 states have (on average 1.0350877192982457) internal successors, (118), 115 states have internal predecessors, (118), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:56:40,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 155 transitions. [2024-11-28 04:56:40,748 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 155 transitions. Word has length 101 [2024-11-28 04:56:40,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:40,749 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 155 transitions. [2024-11-28 04:56:40,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.142857142857143) internal successors, (66), 22 states have internal predecessors, (66), 6 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (16), 13 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:56:40,749 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 155 transitions. [2024-11-28 04:56:40,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 04:56:40,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:40,751 INFO L218 NwaCegarLoop]: trace histogram [17, 14, 14, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 3, 1, 1, 1, 1] [2024-11-28 04:56:40,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:56:40,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:56:40,952 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:56:40,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:40,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1131194063, now seen corresponding path program 4 times [2024-11-28 04:56:40,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:40,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964067511] [2024-11-28 04:56:40,953 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:56:40,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:40,988 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:56:40,989 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:41,772 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 78 proven. 135 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2024-11-28 04:56:41,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:41,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964067511] [2024-11-28 04:56:41,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964067511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:41,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092277587] [2024-11-28 04:56:41,772 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:56:41,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:41,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:41,775 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:41,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:56:41,868 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:56:41,868 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:41,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 04:56:41,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:42,149 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 78 proven. 135 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2024-11-28 04:56:42,149 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:43,935 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 144 proven. 128 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2024-11-28 04:56:43,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092277587] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:43,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:43,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 17] total 26 [2024-11-28 04:56:43,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405452966] [2024-11-28 04:56:43,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:43,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 04:56:43,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:43,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 04:56:43,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:56:43,940 INFO L87 Difference]: Start difference. First operand 144 states and 155 transitions. Second operand has 27 states, 26 states have (on average 2.730769230769231) internal successors, (71), 27 states have internal predecessors, (71), 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) [2024-11-28 04:56:44,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:44,059 INFO L93 Difference]: Finished difference Result 145 states and 155 transitions. [2024-11-28 04:56:44,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:56:44,059 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.730769230769231) internal successors, (71), 27 states have internal predecessors, (71), 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 155 [2024-11-28 04:56:44,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:44,061 INFO L225 Difference]: With dead ends: 145 [2024-11-28 04:56:44,063 INFO L226 Difference]: Without dead ends: 144 [2024-11-28 04:56:44,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 296 SyntacticMatches, 16 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:56:44,064 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:44,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 110 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:56:44,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-28 04:56:44,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-28 04:56:44,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 114 states have (on average 1.0087719298245614) internal successors, (115), 115 states have internal predecessors, (115), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:56:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2024-11-28 04:56:44,081 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 155 [2024-11-28 04:56:44,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:44,083 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 152 transitions. [2024-11-28 04:56:44,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.730769230769231) internal successors, (71), 27 states have internal predecessors, (71), 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) [2024-11-28 04:56:44,083 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 152 transitions. [2024-11-28 04:56:44,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-11-28 04:56:44,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:44,091 INFO L218 NwaCegarLoop]: trace histogram [41, 40, 33, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 13, 8, 1, 1, 1, 1] [2024-11-28 04:56:44,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:56:44,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 04:56:44,296 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 04:56:44,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:44,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2050570235, now seen corresponding path program 5 times [2024-11-28 04:56:44,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:44,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268713006] [2024-11-28 04:56:44,297 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:56:44,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:44,396 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 29 check-sat command(s) [2024-11-28 04:56:44,396 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:50,399 INFO L134 CoverageAnalysis]: Checked inductivity of 5628 backedges. 936 proven. 1467 refuted. 0 times theorem prover too weak. 3225 trivial. 0 not checked. [2024-11-28 04:56:50,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:50,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268713006] [2024-11-28 04:56:50,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268713006] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:50,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691312112] [2024-11-28 04:56:50,400 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:56:50,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:50,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:50,402 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:50,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:56:50,684 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 29 check-sat command(s) [2024-11-28 04:56:50,684 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:50,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-11-28 04:56:50,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:51,427 INFO L134 CoverageAnalysis]: Checked inductivity of 5628 backedges. 820 proven. 1112 refuted. 0 times theorem prover too weak. 3696 trivial. 0 not checked. [2024-11-28 04:56:51,428 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:02,371 INFO L134 CoverageAnalysis]: Checked inductivity of 5628 backedges. 1149 proven. 1015 refuted. 0 times theorem prover too weak. 3464 trivial. 0 not checked. [2024-11-28 04:57:02,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691312112] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:57:02,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:57:02,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 18, 29] total 47 [2024-11-28 04:57:02,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200387629] [2024-11-28 04:57:02,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:02,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-28 04:57:02,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:02,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-28 04:57:02,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=526, Invalid=1730, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 04:57:02,375 INFO L87 Difference]: Start difference. First operand 144 states and 152 transitions. Second operand has 48 states, 47 states have (on average 2.6382978723404253) internal successors, (124), 48 states have internal predecessors, (124), 12 states have call successors, (13), 1 states have call predecessors, (13), 13 states have return successors, (34), 33 states have call predecessors, (34), 12 states have call successors, (34) [2024-11-28 04:57:02,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:02,513 INFO L93 Difference]: Finished difference Result 144 states and 152 transitions. [2024-11-28 04:57:02,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:57:02,514 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.6382978723404253) internal successors, (124), 48 states have internal predecessors, (124), 12 states have call successors, (13), 1 states have call predecessors, (13), 13 states have return successors, (34), 33 states have call predecessors, (34), 12 states have call successors, (34) Word has length 398 [2024-11-28 04:57:02,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:02,515 INFO L225 Difference]: With dead ends: 144 [2024-11-28 04:57:02,515 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:57:02,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 774 SyntacticMatches, 55 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2558 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=556, Invalid=1796, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 04:57:02,517 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:02,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 141 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:57:02,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:57:02,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:57:02,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:57:02,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:57:02,519 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 398 [2024-11-28 04:57:02,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:02,519 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:57:02,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.6382978723404253) internal successors, (124), 48 states have internal predecessors, (124), 12 states have call successors, (13), 1 states have call predecessors, (13), 13 states have return successors, (34), 33 states have call predecessors, (34), 12 states have call successors, (34) [2024-11-28 04:57:02,519 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:57:02,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:57:02,522 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-28 04:57:02,523 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-28 04:57:02,523 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-28 04:57:02,523 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-28 04:57:02,523 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-28 04:57:02,523 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-28 04:57:02,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:57:02,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:57:02,728 INFO L422 BasicCegarLoop]: Path program histogram: [5, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 04:57:02,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:57:04,025 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:57:04,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:57:04 BoogieIcfgContainer [2024-11-28 04:57:04,032 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:57:04,032 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:57:04,032 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:57:04,033 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:57:04,034 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:56:25" (3/4) ... [2024-11-28 04:57:04,036 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:57:04,040 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo [2024-11-28 04:57:04,044 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-28 04:57:04,044 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 04:57:04,044 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:57:04,044 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:57:04,135 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:57:04,136 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:57:04,136 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:57:04,138 INFO L158 Benchmark]: Toolchain (without parser) took 38921.56ms. Allocated memory was 117.4MB in the beginning and 654.3MB in the end (delta: 536.9MB). Free memory was 95.1MB in the beginning and 396.8MB in the end (delta: -301.7MB). Peak memory consumption was 228.9MB. Max. memory is 16.1GB. [2024-11-28 04:57:04,138 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 142.6MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:57:04,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.20ms. Allocated memory is still 117.4MB. Free memory was 95.1MB in the beginning and 84.8MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:57:04,140 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.43ms. Allocated memory is still 117.4MB. Free memory was 84.6MB in the beginning and 83.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:57:04,140 INFO L158 Benchmark]: Boogie Preprocessor took 46.03ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 82.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:57:04,140 INFO L158 Benchmark]: RCFGBuilder took 380.25ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 72.2MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:57:04,141 INFO L158 Benchmark]: TraceAbstraction took 38083.78ms. Allocated memory was 117.4MB in the beginning and 654.3MB in the end (delta: 536.9MB). Free memory was 71.4MB in the beginning and 400.8MB in the end (delta: -329.3MB). Peak memory consumption was 203.7MB. Max. memory is 16.1GB. [2024-11-28 04:57:04,141 INFO L158 Benchmark]: Witness Printer took 103.57ms. Allocated memory is still 654.3MB. Free memory was 400.8MB in the beginning and 396.8MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:57:04,143 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 142.6MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.20ms. Allocated memory is still 117.4MB. Free memory was 95.1MB in the beginning and 84.8MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.43ms. Allocated memory is still 117.4MB. Free memory was 84.6MB in the beginning and 83.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.03ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 82.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 380.25ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 72.2MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 38083.78ms. Allocated memory was 117.4MB in the beginning and 654.3MB in the end (delta: 536.9MB). Free memory was 71.4MB in the beginning and 400.8MB in the end (delta: -329.3MB). Peak memory consumption was 203.7MB. Max. memory is 16.1GB. * Witness Printer took 103.57ms. Allocated memory is still 654.3MB. Free memory was 400.8MB in the beginning and 396.8MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 36.7s, OverallIterations: 14, TraceHistogramMax: 41, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1007 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 979 mSDsluCounter, 2145 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1769 mSDsCounter, 276 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3062 IncrementalHoareTripleChecker+Invalid, 3338 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 276 mSolverCounterUnsat, 376 mSDtfsCounter, 3062 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2304 GetRequests, 1913 SyntacticMatches, 117 SemanticMatches, 274 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4316 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=8, InterpolantAutomatonStates: 181, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 117 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 27.2s InterpolantComputationTime, 2168 NumberOfCodeBlocks, 2096 NumberOfCodeBlocksAsserted, 92 NumberOfCheckSat, 3145 ConstructedInterpolants, 0 QuantifiedInterpolants, 7176 SizeOfPredicates, 23 NumberOfNonLiveVariables, 2046 ConjunctsInSsa, 197 ConjunctsInUnsatCore, 33 InterpolantComputations, 5 PerfectInterpolantSequences, 18017/23012 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 04:57:04,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1312e2ff-befb-41cd-ab5c-b48853c1a23c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE