./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX --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 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 16:05:19,370 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 16:05:19,459 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-11-08 16:05:19,470 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 16:05:19,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 16:05:19,493 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 16:05:19,494 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 16:05:19,494 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 16:05:19,495 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 16:05:19,495 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 16:05:19,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 16:05:19,496 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 16:05:19,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 16:05:19,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 16:05:19,498 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 16:05:19,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 16:05:19,499 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 16:05:19,499 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 16:05:19,500 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 16:05:19,500 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 16:05:19,500 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 16:05:19,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 16:05:19,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 16:05:19,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 16:05:19,502 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 16:05:19,503 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-08 16:05:19,503 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 16:05:19,504 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 16:05:19,504 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 16:05:19,504 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 16:05:19,505 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 16:05:19,505 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 16:05:19,506 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 16:05:19,506 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 16:05:19,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 16:05:19,507 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 16:05:19,507 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 16:05:19,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 16:05:19,508 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 16:05:19,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 16:05:19,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 16:05:19,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 16:05:19,510 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 16:05:19,510 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 16:05:19,510 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992
[2024-11-08 16:05:19,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 16:05:19,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 16:05:19,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 16:05:19,875 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 16:05:19,875 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 16:05:19,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c
Unable to find full path for "g++"
[2024-11-08 16:05:21,904 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 16:05:22,168 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 16:05:22,168 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c
[2024-11-08 16:05:22,175 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/data/c17b79bc1/aa4e53f4459e4f7cbc963284b84bbfb3/FLAG58e7cbbf3
[2024-11-08 16:05:22,189 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/data/c17b79bc1/aa4e53f4459e4f7cbc963284b84bbfb3
[2024-11-08 16:05:22,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 16:05:22,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 16:05:22,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 16:05:22,196 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 16:05:22,203 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 16:05:22,204 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:05:22" (1/1) ...
[2024-11-08 16:05:22,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@755c0345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22, skipping insertion in model container
[2024-11-08 16:05:22,205 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:05:22" (1/1) ...
[2024-11-08 16:05:22,234 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 16:05:22,469 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 16:05:22,481 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 16:05:22,499 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 16:05:22,524 INFO L204 MainTranslator]: Completed translation
[2024-11-08 16:05:22,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22 WrapperNode
[2024-11-08 16:05:22,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 16:05:22,526 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 16:05:22,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 16:05:22,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 16:05:22,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22" (1/1) ...
[2024-11-08 16:05:22,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22" (1/1) ...
[2024-11-08 16:05:22,585 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21
[2024-11-08 16:05:22,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 16:05:22,586 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 16:05:22,587 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 16:05:22,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 16:05:22,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22" (1/1) ...
[2024-11-08 16:05:22,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22" (1/1) ...
[2024-11-08 16:05:22,625 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22" (1/1) ...
[2024-11-08 16:05:22,658 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].
[2024-11-08 16:05:22,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22" (1/1) ...
[2024-11-08 16:05:22,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22" (1/1) ...
[2024-11-08 16:05:22,671 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22" (1/1) ...
[2024-11-08 16:05:22,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22" (1/1) ...
[2024-11-08 16:05:22,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22" (1/1) ...
[2024-11-08 16:05:22,686 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22" (1/1) ...
[2024-11-08 16:05:22,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 16:05:22,689 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 16:05:22,693 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 16:05:22,693 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 16:05:22,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22" (1/1) ...
[2024-11-08 16:05:22,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 16:05:22,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:22,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 16:05:22,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 16:05:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 16:05:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 16:05:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2
[2024-11-08 16:05:22,794 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2
[2024-11-08 16:05:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1
[2024-11-08 16:05:22,794 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1
[2024-11-08 16:05:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 16:05:22,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 16:05:22,878 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 16:05:22,881 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 16:05:23,119 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live.
[2024-11-08 16:05:23,119 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 16:05:23,134 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 16:05:23,134 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 16:05:23,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:05:23 BoogieIcfgContainer
[2024-11-08 16:05:23,135 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 16:05:23,140 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 16:05:23,142 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 16:05:23,147 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 16:05:23,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:05:22" (1/3) ...
[2024-11-08 16:05:23,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b58de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:05:23, skipping insertion in model container
[2024-11-08 16:05:23,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:05:22" (2/3) ...
[2024-11-08 16:05:23,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b58de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:05:23, skipping insertion in model container
[2024-11-08 16:05:23,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:05:23" (3/3) ...
[2024-11-08 16:05:23,153 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c
[2024-11-08 16:05:23,175 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 16:05:23,176 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations.
[2024-11-08 16:05:23,276 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 16:05:23,285 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;@6325ffab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 16:05:23,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations.
[2024-11-08 16:05:23,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 45 states have internal predecessors, (50), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-08 16:05:23,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-08 16:05:23,301 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:23,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:23,303 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:23,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:23,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1867028009, now seen corresponding path program 1 times
[2024-11-08 16:05:23,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:23,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297523788]
[2024-11-08 16:05:23,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:23,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:23,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 16:05:23,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:23,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297523788]
[2024-11-08 16:05:23,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297523788] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:23,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:05:23,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 16:05:23,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048248447]
[2024-11-08 16:05:23,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:23,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 16:05:23,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:23,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 16:05:23,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 16:05:23,538 INFO L87 Difference]: Start difference. First operand has 53 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 45 states have internal predecessors, (50), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 16:05:23,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:23,611 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions.
[2024-11-08 16:05:23,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 16:05:23,614 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
[2024-11-08 16:05:23,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:23,625 INFO L225 Difference]: With dead ends: 59
[2024-11-08 16:05:23,626 INFO L226 Difference]: Without dead ends: 45
[2024-11-08 16:05:23,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 16:05:23,632 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 11 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:23,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 92 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:05:23,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2024-11-08 16:05:23,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43.
[2024-11-08 16:05:23,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 36 states have internal predecessors, (40), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-08 16:05:23,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions.
[2024-11-08 16:05:23,689 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 7
[2024-11-08 16:05:23,690 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:23,690 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions.
[2024-11-08 16:05:23,691 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)
[2024-11-08 16:05:23,691 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions.
[2024-11-08 16:05:23,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-08 16:05:23,693 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:23,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:23,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 16:05:23,695 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:23,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:23,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2043293518, now seen corresponding path program 1 times
[2024-11-08 16:05:23,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:23,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461110226]
[2024-11-08 16:05:23,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:23,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:23,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 16:05:23,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:23,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461110226]
[2024-11-08 16:05:23,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461110226] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:23,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:05:23,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 16:05:23,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697334754]
[2024-11-08 16:05:23,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:23,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 16:05:23,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:23,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 16:05:23,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 16:05:23,804 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 16:05:23,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:23,953 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions.
[2024-11-08 16:05:23,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 16:05:23,955 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
[2024-11-08 16:05:23,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:23,956 INFO L225 Difference]: With dead ends: 64
[2024-11-08 16:05:23,956 INFO L226 Difference]: Without dead ends: 58
[2024-11-08 16:05:23,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 16:05:23,958 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 26 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:23,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 164 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 16:05:23,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2024-11-08 16:05:23,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56.
[2024-11-08 16:05:23,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 46 states have internal predecessors, (52), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 16:05:23,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions.
[2024-11-08 16:05:24,001 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 8
[2024-11-08 16:05:24,004 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:24,004 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions.
[2024-11-08 16:05:24,005 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)
[2024-11-08 16:05:24,005 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions.
[2024-11-08 16:05:24,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-08 16:05:24,006 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:24,006 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:24,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 16:05:24,006 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:24,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:24,007 INFO L85 PathProgramCache]: Analyzing trace with hash -749725533, now seen corresponding path program 1 times
[2024-11-08 16:05:24,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:24,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461109676]
[2024-11-08 16:05:24,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:24,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:24,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 16:05:24,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:24,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461109676]
[2024-11-08 16:05:24,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461109676] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:24,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:05:24,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 16:05:24,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763147800]
[2024-11-08 16:05:24,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:24,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 16:05:24,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:24,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 16:05:24,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 16:05:24,095 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 16:05:24,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:24,126 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions.
[2024-11-08 16:05:24,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 16:05:24,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2024-11-08 16:05:24,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:24,129 INFO L225 Difference]: With dead ends: 58
[2024-11-08 16:05:24,129 INFO L226 Difference]: Without dead ends: 56
[2024-11-08 16:05:24,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 16:05:24,131 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 11 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:24,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 72 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:05:24,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2024-11-08 16:05:24,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54.
[2024-11-08 16:05:24,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 44 states have internal predecessors, (50), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 16:05:24,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions.
[2024-11-08 16:05:24,144 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 13
[2024-11-08 16:05:24,144 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:24,145 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions.
[2024-11-08 16:05:24,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 16:05:24,145 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions.
[2024-11-08 16:05:24,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-08 16:05:24,146 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:24,146 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:24,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 16:05:24,147 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:24,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:24,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1766654982, now seen corresponding path program 1 times
[2024-11-08 16:05:24,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:24,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398420247]
[2024-11-08 16:05:24,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:24,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:24,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 16:05:24,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:24,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398420247]
[2024-11-08 16:05:24,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398420247] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:24,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:05:24,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 16:05:24,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501922387]
[2024-11-08 16:05:24,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:24,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 16:05:24,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:24,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 16:05:24,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-08 16:05:24,322 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 16:05:24,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:24,541 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions.
[2024-11-08 16:05:24,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 16:05:24,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2024-11-08 16:05:24,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:24,543 INFO L225 Difference]: With dead ends: 58
[2024-11-08 16:05:24,544 INFO L226 Difference]: Without dead ends: 54
[2024-11-08 16:05:24,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-11-08 16:05:24,548 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 51 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:24,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 102 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 16:05:24,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2024-11-08 16:05:24,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50.
[2024-11-08 16:05:24,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 40 states have internal predecessors, (46), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 16:05:24,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions.
[2024-11-08 16:05:24,572 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 14
[2024-11-08 16:05:24,572 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:24,572 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions.
[2024-11-08 16:05:24,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 16:05:24,573 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions.
[2024-11-08 16:05:24,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-11-08 16:05:24,574 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:24,574 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:24,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 16:05:24,575 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:24,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:24,577 INFO L85 PathProgramCache]: Analyzing trace with hash 2097999453, now seen corresponding path program 1 times
[2024-11-08 16:05:24,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:24,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806373855]
[2024-11-08 16:05:24,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:24,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:24,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 16:05:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:24,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-08 16:05:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:24,853 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 16:05:24,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:24,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806373855]
[2024-11-08 16:05:24,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806373855] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:24,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:05:24,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 16:05:24,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99745335]
[2024-11-08 16:05:24,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:24,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 16:05:24,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:24,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 16:05:24,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 16:05:24,857 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:05:24,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:24,918 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions.
[2024-11-08 16:05:24,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 16:05:24,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23
[2024-11-08 16:05:24,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:24,925 INFO L225 Difference]: With dead ends: 74
[2024-11-08 16:05:24,928 INFO L226 Difference]: Without dead ends: 69
[2024-11-08 16:05:24,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 16:05:24,930 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 4 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:24,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:05:24,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states.
[2024-11-08 16:05:24,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63.
[2024-11-08 16:05:24,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 50 states have internal predecessors, (56), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (13), 9 states have call predecessors, (13), 8 states have call successors, (13)
[2024-11-08 16:05:24,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions.
[2024-11-08 16:05:24,948 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 78 transitions. Word has length 23
[2024-11-08 16:05:24,949 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:24,949 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 78 transitions.
[2024-11-08 16:05:24,949 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)
[2024-11-08 16:05:24,950 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions.
[2024-11-08 16:05:24,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-08 16:05:24,951 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:24,951 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:24,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 16:05:24,952 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:24,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:24,953 INFO L85 PathProgramCache]: Analyzing trace with hash 624421350, now seen corresponding path program 1 times
[2024-11-08 16:05:24,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:24,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813661056]
[2024-11-08 16:05:24,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:24,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:25,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 16:05:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:25,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-08 16:05:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:25,168 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-08 16:05:25,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:25,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813661056]
[2024-11-08 16:05:25,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813661056] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:25,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566822401]
[2024-11-08 16:05:25,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:25,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:25,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:25,174 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:25,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 16:05:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:25,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:25,228 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:25,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 16:05:25,407 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:05:25,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566822401] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:25,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:05:25,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11
[2024-11-08 16:05:25,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333964812]
[2024-11-08 16:05:25,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:25,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 16:05:25,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:25,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 16:05:25,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-11-08 16:05:25,416 INFO L87 Difference]: Start difference. First operand 63 states and 78 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:05:25,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:25,587 INFO L93 Difference]: Finished difference Result 113 states and 140 transitions.
[2024-11-08 16:05:25,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 16:05:25,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24
[2024-11-08 16:05:25,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:25,589 INFO L225 Difference]: With dead ends: 113
[2024-11-08 16:05:25,589 INFO L226 Difference]: Without dead ends: 63
[2024-11-08 16:05:25,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132
[2024-11-08 16:05:25,592 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 32 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:25,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 153 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 16:05:25,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states.
[2024-11-08 16:05:25,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59.
[2024-11-08 16:05:25,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 47 states have internal predecessors, (53), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10)
[2024-11-08 16:05:25,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions.
[2024-11-08 16:05:25,605 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 24
[2024-11-08 16:05:25,606 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:25,606 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions.
[2024-11-08 16:05:25,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:05:25,607 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions.
[2024-11-08 16:05:25,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-08 16:05:25,608 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:25,608 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:25,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-08 16:05:25,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-11-08 16:05:25,809 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:25,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:25,810 INFO L85 PathProgramCache]: Analyzing trace with hash 120521327, now seen corresponding path program 1 times
[2024-11-08 16:05:25,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:25,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802044429]
[2024-11-08 16:05:25,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:25,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:25,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 16:05:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:25,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17
[2024-11-08 16:05:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 16:05:25,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:25,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802044429]
[2024-11-08 16:05:25,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802044429] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:25,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:05:25,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 16:05:25,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511176993]
[2024-11-08 16:05:25,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:25,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 16:05:25,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:25,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 16:05:25,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 16:05:25,938 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:05:25,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:25,991 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions.
[2024-11-08 16:05:25,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 16:05:25,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25
[2024-11-08 16:05:25,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:25,993 INFO L225 Difference]: With dead ends: 83
[2024-11-08 16:05:25,994 INFO L226 Difference]: Without dead ends: 78
[2024-11-08 16:05:25,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 16:05:25,996 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:25,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 114 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:05:25,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2024-11-08 16:05:26,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69.
[2024-11-08 16:05:26,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 55 states have internal predecessors, (60), 10 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (19), 10 states have call predecessors, (19), 9 states have call successors, (19)
[2024-11-08 16:05:26,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions.
[2024-11-08 16:05:26,011 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 25
[2024-11-08 16:05:26,012 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:26,012 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions.
[2024-11-08 16:05:26,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:05:26,013 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions.
[2024-11-08 16:05:26,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-11-08 16:05:26,014 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:26,015 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:26,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 16:05:26,015 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:26,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:26,016 INFO L85 PathProgramCache]: Analyzing trace with hash -473230649, now seen corresponding path program 1 times
[2024-11-08 16:05:26,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:26,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196532088]
[2024-11-08 16:05:26,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:26,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:26,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:26,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2024-11-08 16:05:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:26,141 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-08 16:05:26,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:26,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196532088]
[2024-11-08 16:05:26,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196532088] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:26,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:05:26,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 16:05:26,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687091403]
[2024-11-08 16:05:26,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:26,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 16:05:26,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:26,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 16:05:26,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 16:05:26,145 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:05:26,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:26,193 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions.
[2024-11-08 16:05:26,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 16:05:26,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29
[2024-11-08 16:05:26,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:26,196 INFO L225 Difference]: With dead ends: 83
[2024-11-08 16:05:26,196 INFO L226 Difference]: Without dead ends: 81
[2024-11-08 16:05:26,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 16:05:26,198 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 4 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:26,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:05:26,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states.
[2024-11-08 16:05:26,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78.
[2024-11-08 16:05:26,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 58 states have (on average 1.1551724137931034) internal successors, (67), 62 states have internal predecessors, (67), 11 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (23), 12 states have call predecessors, (23), 10 states have call successors, (23)
[2024-11-08 16:05:26,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions.
[2024-11-08 16:05:26,216 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 29
[2024-11-08 16:05:26,217 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:26,217 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions.
[2024-11-08 16:05:26,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:05:26,217 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions.
[2024-11-08 16:05:26,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2024-11-08 16:05:26,221 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:26,225 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:26,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-08 16:05:26,225 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:26,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:26,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1581850604, now seen corresponding path program 1 times
[2024-11-08 16:05:26,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:26,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444099637]
[2024-11-08 16:05:26,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:26,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:26,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 16:05:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:26,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-11-08 16:05:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:26,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31
[2024-11-08 16:05:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:26,380 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-11-08 16:05:26,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:26,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444099637]
[2024-11-08 16:05:26,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444099637] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:26,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500023187]
[2024-11-08 16:05:26,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:26,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:26,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:26,383 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:26,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 16:05:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:26,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:26,445 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:26,535 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 16:05:26,536 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:05:26,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500023187] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:26,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:05:26,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11
[2024-11-08 16:05:26,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166111592]
[2024-11-08 16:05:26,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:26,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 16:05:26,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:26,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 16:05:26,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-11-08 16:05:26,540 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 16:05:26,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:26,701 INFO L93 Difference]: Finished difference Result 141 states and 180 transitions.
[2024-11-08 16:05:26,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 16:05:26,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39
[2024-11-08 16:05:26,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:26,703 INFO L225 Difference]: With dead ends: 141
[2024-11-08 16:05:26,703 INFO L226 Difference]: Without dead ends: 76
[2024-11-08 16:05:26,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132
[2024-11-08 16:05:26,705 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 31 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:26,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 176 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 16:05:26,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states.
[2024-11-08 16:05:26,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74.
[2024-11-08 16:05:26,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 59 states have internal predecessors, (64), 10 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (20), 11 states have call predecessors, (20), 9 states have call successors, (20)
[2024-11-08 16:05:26,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions.
[2024-11-08 16:05:26,716 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 39
[2024-11-08 16:05:26,717 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:26,717 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions.
[2024-11-08 16:05:26,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 16:05:26,717 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions.
[2024-11-08 16:05:26,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2024-11-08 16:05:26,718 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:26,718 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:26,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 16:05:26,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8
[2024-11-08 16:05:26,920 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:26,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:26,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1773385638, now seen corresponding path program 1 times
[2024-11-08 16:05:26,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:26,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793870123]
[2024-11-08 16:05:26,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:26,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:26,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:26,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2024-11-08 16:05:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:27,015 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-08 16:05:27,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:27,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793870123]
[2024-11-08 16:05:27,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793870123] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:27,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510047551]
[2024-11-08 16:05:27,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:27,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:27,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:27,018 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:27,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 16:05:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:27,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:27,084 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:27,238 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 16:05:27,238 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:05:27,481 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 16:05:27,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510047551] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:05:27,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:05:27,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19
[2024-11-08 16:05:27,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145012850]
[2024-11-08 16:05:27,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:05:27,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-08 16:05:27,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:27,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-08 16:05:27,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342
[2024-11-08 16:05:27,487 INFO L87 Difference]: Start difference. First operand 74 states and 94 transitions. Second operand has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-08 16:05:28,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:28,107 INFO L93 Difference]: Finished difference Result 200 states and 267 transitions.
[2024-11-08 16:05:28,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-11-08 16:05:28,108 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 30
[2024-11-08 16:05:28,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:28,110 INFO L225 Difference]: With dead ends: 200
[2024-11-08 16:05:28,110 INFO L226 Difference]: Without dead ends: 135
[2024-11-08 16:05:28,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552
[2024-11-08 16:05:28,112 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 117 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:28,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 656 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 16:05:28,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states.
[2024-11-08 16:05:28,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 121.
[2024-11-08 16:05:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 97 states have internal predecessors, (107), 16 states have call successors, (16), 6 states have call predecessors, (16), 9 states have return successors, (34), 17 states have call predecessors, (34), 15 states have call successors, (34)
[2024-11-08 16:05:28,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 157 transitions.
[2024-11-08 16:05:28,130 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 157 transitions. Word has length 30
[2024-11-08 16:05:28,131 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:28,131 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 157 transitions.
[2024-11-08 16:05:28,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-08 16:05:28,131 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 157 transitions.
[2024-11-08 16:05:28,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2024-11-08 16:05:28,133 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:28,133 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:28,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-08 16:05:28,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-08 16:05:28,338 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:28,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:28,338 INFO L85 PathProgramCache]: Analyzing trace with hash -463506674, now seen corresponding path program 2 times
[2024-11-08 16:05:28,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:28,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228402885]
[2024-11-08 16:05:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:28,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:28,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2024-11-08 16:05:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:28,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35
[2024-11-08 16:05:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-11-08 16:05:28,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:28,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228402885]
[2024-11-08 16:05:28,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228402885] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:28,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724860194]
[2024-11-08 16:05:28,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 16:05:28,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:28,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:28,489 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:28,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 16:05:28,546 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 16:05:28,546 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 16:05:28,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:28,549 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:28,622 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-11-08 16:05:28,622 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:05:28,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724860194] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:28,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:05:28,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8
[2024-11-08 16:05:28,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386212178]
[2024-11-08 16:05:28,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:28,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 16:05:28,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:28,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 16:05:28,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-08 16:05:28,624 INFO L87 Difference]: Start difference. First operand 121 states and 157 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:05:28,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:28,678 INFO L93 Difference]: Finished difference Result 130 states and 169 transitions.
[2024-11-08 16:05:28,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 16:05:28,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42
[2024-11-08 16:05:28,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:28,683 INFO L225 Difference]: With dead ends: 130
[2024-11-08 16:05:28,683 INFO L226 Difference]: Without dead ends: 129
[2024-11-08 16:05:28,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-08 16:05:28,686 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:28,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 140 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:05:28,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states.
[2024-11-08 16:05:28,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125.
[2024-11-08 16:05:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 96 states have (on average 1.15625) internal successors, (111), 99 states have internal predecessors, (111), 16 states have call successors, (16), 6 states have call predecessors, (16), 9 states have return successors, (34), 19 states have call predecessors, (34), 15 states have call successors, (34)
[2024-11-08 16:05:28,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 161 transitions.
[2024-11-08 16:05:28,722 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 161 transitions. Word has length 42
[2024-11-08 16:05:28,722 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:28,723 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 161 transitions.
[2024-11-08 16:05:28,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:05:28,723 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 161 transitions.
[2024-11-08 16:05:28,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2024-11-08 16:05:28,724 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:28,724 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:28,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-08 16:05:28,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-11-08 16:05:28,925 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:28,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:28,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1483804933, now seen corresponding path program 1 times
[2024-11-08 16:05:28,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:28,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576177907]
[2024-11-08 16:05:28,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:28,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:29,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2024-11-08 16:05:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:29,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35
[2024-11-08 16:05:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-11-08 16:05:29,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:29,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576177907]
[2024-11-08 16:05:29,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576177907] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:29,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248788474]
[2024-11-08 16:05:29,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:29,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:29,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:29,092 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:29,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 16:05:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:29,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:29,159 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 16:05:29,392 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:05:29,712 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 16:05:29,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248788474] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:05:29,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:05:29,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 23
[2024-11-08 16:05:29,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179379482]
[2024-11-08 16:05:29,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:05:29,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-08 16:05:29,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:29,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-08 16:05:29,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506
[2024-11-08 16:05:29,716 INFO L87 Difference]: Start difference. First operand 125 states and 161 transitions. Second operand has 23 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 17 states have internal predecessors, (72), 11 states have call successors, (15), 8 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-08 16:05:30,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:30,519 INFO L93 Difference]: Finished difference Result 321 states and 423 transitions.
[2024-11-08 16:05:30,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2024-11-08 16:05:30,520 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 17 states have internal predecessors, (72), 11 states have call successors, (15), 8 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 43
[2024-11-08 16:05:30,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:30,521 INFO L225 Difference]: With dead ends: 321
[2024-11-08 16:05:30,522 INFO L226 Difference]: Without dead ends: 211
[2024-11-08 16:05:30,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 74 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930
[2024-11-08 16:05:30,523 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 179 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:30,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1023 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 16:05:30,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states.
[2024-11-08 16:05:30,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 191.
[2024-11-08 16:05:30,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 149 states have (on average 1.1543624161073827) internal successors, (172), 151 states have internal predecessors, (172), 25 states have call successors, (25), 10 states have call predecessors, (25), 13 states have return successors, (48), 29 states have call predecessors, (48), 24 states have call successors, (48)
[2024-11-08 16:05:30,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 245 transitions.
[2024-11-08 16:05:30,542 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 245 transitions. Word has length 43
[2024-11-08 16:05:30,543 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:30,543 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 245 transitions.
[2024-11-08 16:05:30,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 17 states have internal predecessors, (72), 11 states have call successors, (15), 8 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-08 16:05:30,543 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 245 transitions.
[2024-11-08 16:05:30,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-11-08 16:05:30,544 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:30,545 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:30,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-08 16:05:30,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:30,746 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:30,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:30,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1504919224, now seen corresponding path program 1 times
[2024-11-08 16:05:30,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:30,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527944873]
[2024-11-08 16:05:30,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:30,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:30,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2024-11-08 16:05:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:30,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2024-11-08 16:05:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:30,861 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked.
[2024-11-08 16:05:30,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:30,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527944873]
[2024-11-08 16:05:30,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527944873] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:30,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181656136]
[2024-11-08 16:05:30,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:30,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:30,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:30,864 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:30,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-08 16:05:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:30,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:30,923 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:31,242 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 13 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 16:05:31,243 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:05:31,560 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 16:05:31,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181656136] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:05:31,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:05:31,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 19, 19] total 24
[2024-11-08 16:05:31,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902254071]
[2024-11-08 16:05:31,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:05:31,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-11-08 16:05:31,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:31,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-08 16:05:31,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552
[2024-11-08 16:05:31,563 INFO L87 Difference]: Start difference. First operand 191 states and 245 transitions. Second operand has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 17 states have internal predecessors, (73), 11 states have call successors, (14), 9 states have call predecessors, (14), 5 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5)
[2024-11-08 16:05:32,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:32,321 INFO L93 Difference]: Finished difference Result 406 states and 525 transitions.
[2024-11-08 16:05:32,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2024-11-08 16:05:32,322 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 17 states have internal predecessors, (73), 11 states have call successors, (14), 9 states have call predecessors, (14), 5 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 60
[2024-11-08 16:05:32,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:32,324 INFO L225 Difference]: With dead ends: 406
[2024-11-08 16:05:32,324 INFO L226 Difference]: Without dead ends: 236
[2024-11-08 16:05:32,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 97 SyntacticMatches, 16 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992
[2024-11-08 16:05:32,331 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 213 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:32,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 964 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 16:05:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states.
[2024-11-08 16:05:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 213.
[2024-11-08 16:05:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 167 states have (on average 1.1497005988023952) internal successors, (192), 168 states have internal predecessors, (192), 28 states have call successors, (28), 11 states have call predecessors, (28), 14 states have return successors, (54), 33 states have call predecessors, (54), 27 states have call successors, (54)
[2024-11-08 16:05:32,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 274 transitions.
[2024-11-08 16:05:32,351 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 274 transitions. Word has length 60
[2024-11-08 16:05:32,351 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:32,352 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 274 transitions.
[2024-11-08 16:05:32,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 17 states have internal predecessors, (73), 11 states have call successors, (14), 9 states have call predecessors, (14), 5 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5)
[2024-11-08 16:05:32,352 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 274 transitions.
[2024-11-08 16:05:32,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-11-08 16:05:32,353 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:32,353 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:32,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-08 16:05:32,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2024-11-08 16:05:32,558 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:32,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:32,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1710163946, now seen corresponding path program 2 times
[2024-11-08 16:05:32,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:32,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027424956]
[2024-11-08 16:05:32,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:32,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:32,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2024-11-08 16:05:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:32,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:05:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:32,796 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked.
[2024-11-08 16:05:32,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:32,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027424956]
[2024-11-08 16:05:32,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027424956] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:32,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708742352]
[2024-11-08 16:05:32,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 16:05:32,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:32,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:32,799 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:32,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-08 16:05:32,864 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 16:05:32,864 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 16:05:32,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:32,867 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:32,922 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked.
[2024-11-08 16:05:32,923 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:05:32,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708742352] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:32,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:05:32,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8
[2024-11-08 16:05:32,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940526763]
[2024-11-08 16:05:32,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:32,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 16:05:32,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:32,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 16:05:32,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-08 16:05:32,925 INFO L87 Difference]: Start difference. First operand 213 states and 274 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:05:32,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:32,970 INFO L93 Difference]: Finished difference Result 226 states and 294 transitions.
[2024-11-08 16:05:32,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 16:05:32,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60
[2024-11-08 16:05:32,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:32,973 INFO L225 Difference]: With dead ends: 226
[2024-11-08 16:05:32,974 INFO L226 Difference]: Without dead ends: 225
[2024-11-08 16:05:32,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-08 16:05:32,975 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 4 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:32,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 107 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:05:32,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states.
[2024-11-08 16:05:32,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 221.
[2024-11-08 16:05:32,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 175 states have (on average 1.1428571428571428) internal successors, (200), 172 states have internal predecessors, (200), 28 states have call successors, (28), 11 states have call predecessors, (28), 14 states have return successors, (54), 37 states have call predecessors, (54), 27 states have call successors, (54)
[2024-11-08 16:05:33,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 282 transitions.
[2024-11-08 16:05:33,001 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 282 transitions. Word has length 60
[2024-11-08 16:05:33,002 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:33,002 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 282 transitions.
[2024-11-08 16:05:33,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:05:33,002 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 282 transitions.
[2024-11-08 16:05:33,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2024-11-08 16:05:33,003 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:33,004 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:33,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-08 16:05:33,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2024-11-08 16:05:33,209 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:33,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:33,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1475474675, now seen corresponding path program 1 times
[2024-11-08 16:05:33,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:33,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407512302]
[2024-11-08 16:05:33,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:33,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:33,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2024-11-08 16:05:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:33,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:05:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:33,335 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked.
[2024-11-08 16:05:33,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:33,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407512302]
[2024-11-08 16:05:33,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407512302] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:33,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797118463]
[2024-11-08 16:05:33,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:33,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:33,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:33,338 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:33,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-08 16:05:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:33,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:33,401 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:33,467 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked.
[2024-11-08 16:05:33,467 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:05:33,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797118463] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:33,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:05:33,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9
[2024-11-08 16:05:33,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280399150]
[2024-11-08 16:05:33,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:33,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 16:05:33,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:33,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 16:05:33,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-11-08 16:05:33,470 INFO L87 Difference]: Start difference. First operand 221 states and 282 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:05:33,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:33,522 INFO L93 Difference]: Finished difference Result 237 states and 303 transitions.
[2024-11-08 16:05:33,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 16:05:33,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61
[2024-11-08 16:05:33,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:33,525 INFO L225 Difference]: With dead ends: 237
[2024-11-08 16:05:33,525 INFO L226 Difference]: Without dead ends: 236
[2024-11-08 16:05:33,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-11-08 16:05:33,526 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:33,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 149 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:05:33,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states.
[2024-11-08 16:05:33,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 217.
[2024-11-08 16:05:33,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 172 states have (on average 1.1453488372093024) internal successors, (197), 169 states have internal predecessors, (197), 27 states have call successors, (27), 11 states have call predecessors, (27), 14 states have return successors, (51), 36 states have call predecessors, (51), 26 states have call successors, (51)
[2024-11-08 16:05:33,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 275 transitions.
[2024-11-08 16:05:33,544 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 275 transitions. Word has length 61
[2024-11-08 16:05:33,545 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:33,545 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 275 transitions.
[2024-11-08 16:05:33,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 16:05:33,545 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 275 transitions.
[2024-11-08 16:05:33,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-08 16:05:33,546 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:33,547 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:33,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-08 16:05:33,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2024-11-08 16:05:33,751 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:33,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:33,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1055529936, now seen corresponding path program 1 times
[2024-11-08 16:05:33,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:33,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598486860]
[2024-11-08 16:05:33,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:33,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:33,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2024-11-08 16:05:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:33,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59
[2024-11-08 16:05:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:33,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68
[2024-11-08 16:05:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked.
[2024-11-08 16:05:33,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:33,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598486860]
[2024-11-08 16:05:33,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598486860] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:33,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:05:33,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 16:05:33,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355886716]
[2024-11-08 16:05:33,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:33,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 16:05:33,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:33,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 16:05:33,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 16:05:33,918 INFO L87 Difference]: Start difference. First operand 217 states and 275 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 16:05:33,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:33,970 INFO L93 Difference]: Finished difference Result 227 states and 287 transitions.
[2024-11-08 16:05:33,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 16:05:33,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 77
[2024-11-08 16:05:33,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:33,973 INFO L225 Difference]: With dead ends: 227
[2024-11-08 16:05:33,974 INFO L226 Difference]: Without dead ends: 226
[2024-11-08 16:05:33,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 16:05:33,975 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 2 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:33,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 131 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:05:33,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states.
[2024-11-08 16:05:33,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 211.
[2024-11-08 16:05:33,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 168 states have (on average 1.1488095238095237) internal successors, (193), 164 states have internal predecessors, (193), 26 states have call successors, (26), 11 states have call predecessors, (26), 13 states have return successors, (43), 35 states have call predecessors, (43), 25 states have call successors, (43)
[2024-11-08 16:05:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 262 transitions.
[2024-11-08 16:05:33,999 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 262 transitions. Word has length 77
[2024-11-08 16:05:34,000 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:34,000 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 262 transitions.
[2024-11-08 16:05:34,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 16:05:34,001 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 262 transitions.
[2024-11-08 16:05:34,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-11-08 16:05:34,002 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:34,003 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:34,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-08 16:05:34,003 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:34,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:34,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1329146264, now seen corresponding path program 1 times
[2024-11-08 16:05:34,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:34,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956819916]
[2024-11-08 16:05:34,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:34,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:34,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2024-11-08 16:05:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:34,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:05:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:34,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:34,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2024-11-08 16:05:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:34,150 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked.
[2024-11-08 16:05:34,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:34,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956819916]
[2024-11-08 16:05:34,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956819916] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:34,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460742079]
[2024-11-08 16:05:34,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:34,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:34,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:34,154 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:34,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-08 16:05:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:34,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:34,228 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:34,567 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 58 proven. 43 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 16:05:34,569 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:05:34,976 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 58 proven. 43 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 16:05:34,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460742079] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:05:34,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:05:34,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 19, 19] total 23
[2024-11-08 16:05:34,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89998056]
[2024-11-08 16:05:34,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:05:34,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-08 16:05:34,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:34,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-08 16:05:34,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506
[2024-11-08 16:05:34,980 INFO L87 Difference]: Start difference. First operand 211 states and 262 transitions. Second operand has 23 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 16 states have internal predecessors, (84), 11 states have call successors, (16), 8 states have call predecessors, (16), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8)
[2024-11-08 16:05:35,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:35,902 INFO L93 Difference]: Finished difference Result 583 states and 775 transitions.
[2024-11-08 16:05:35,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states.
[2024-11-08 16:05:35,902 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 16 states have internal predecessors, (84), 11 states have call successors, (16), 8 states have call predecessors, (16), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 79
[2024-11-08 16:05:35,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:35,905 INFO L225 Difference]: With dead ends: 583
[2024-11-08 16:05:35,905 INFO L226 Difference]: Without dead ends: 393
[2024-11-08 16:05:35,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 138 SyntacticMatches, 16 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=1376, Unknown=0, NotChecked=0, Total=1640
[2024-11-08 16:05:35,908 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 269 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:35,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 351 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 16:05:35,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states.
[2024-11-08 16:05:35,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 362.
[2024-11-08 16:05:35,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 290 states have (on average 1.1413793103448275) internal successors, (331), 281 states have internal predecessors, (331), 45 states have call successors, (45), 18 states have call predecessors, (45), 23 states have return successors, (77), 62 states have call predecessors, (77), 44 states have call successors, (77)
[2024-11-08 16:05:35,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 453 transitions.
[2024-11-08 16:05:35,937 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 453 transitions. Word has length 79
[2024-11-08 16:05:35,937 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:35,938 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 453 transitions.
[2024-11-08 16:05:35,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 16 states have internal predecessors, (84), 11 states have call successors, (16), 8 states have call predecessors, (16), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8)
[2024-11-08 16:05:35,938 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 453 transitions.
[2024-11-08 16:05:35,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-08 16:05:35,939 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:35,939 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:35,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2024-11-08 16:05:36,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-11-08 16:05:36,140 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:36,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:36,141 INFO L85 PathProgramCache]: Analyzing trace with hash -932529083, now seen corresponding path program 1 times
[2024-11-08 16:05:36,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:36,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006397265]
[2024-11-08 16:05:36,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:36,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-08 16:05:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66
[2024-11-08 16:05:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,255 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked.
[2024-11-08 16:05:36,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:36,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006397265]
[2024-11-08 16:05:36,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006397265] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:36,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:05:36,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 16:05:36,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475140911]
[2024-11-08 16:05:36,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:36,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 16:05:36,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:36,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 16:05:36,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 16:05:36,258 INFO L87 Difference]: Start difference. First operand 362 states and 453 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-08 16:05:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:36,310 INFO L93 Difference]: Finished difference Result 390 states and 492 transitions.
[2024-11-08 16:05:36,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 16:05:36,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 74
[2024-11-08 16:05:36,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:36,313 INFO L225 Difference]: With dead ends: 390
[2024-11-08 16:05:36,313 INFO L226 Difference]: Without dead ends: 389
[2024-11-08 16:05:36,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 16:05:36,315 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:36,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 107 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:05:36,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states.
[2024-11-08 16:05:36,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 375.
[2024-11-08 16:05:36,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 301 states have (on average 1.1362126245847175) internal successors, (342), 291 states have internal predecessors, (342), 45 states have call successors, (45), 18 states have call predecessors, (45), 25 states have return successors, (86), 65 states have call predecessors, (86), 44 states have call successors, (86)
[2024-11-08 16:05:36,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 473 transitions.
[2024-11-08 16:05:36,347 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 473 transitions. Word has length 74
[2024-11-08 16:05:36,347 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:36,347 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 473 transitions.
[2024-11-08 16:05:36,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-08 16:05:36,348 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 473 transitions.
[2024-11-08 16:05:36,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2024-11-08 16:05:36,349 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:36,349 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:36,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-08 16:05:36,349 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:36,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:36,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1524107692, now seen corresponding path program 1 times
[2024-11-08 16:05:36,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:36,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916917136]
[2024-11-08 16:05:36,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:36,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-08 16:05:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66
[2024-11-08 16:05:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,595 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked.
[2024-11-08 16:05:36,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:36,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916917136]
[2024-11-08 16:05:36,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916917136] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:36,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:05:36,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-08 16:05:36,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193652885]
[2024-11-08 16:05:36,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:36,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 16:05:36,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:36,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 16:05:36,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2024-11-08 16:05:36,597 INFO L87 Difference]: Start difference. First operand 375 states and 473 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)
[2024-11-08 16:05:36,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:36,753 INFO L93 Difference]: Finished difference Result 477 states and 622 transitions.
[2024-11-08 16:05:36,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-08 16:05:36,753 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 75
[2024-11-08 16:05:36,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:36,757 INFO L225 Difference]: With dead ends: 477
[2024-11-08 16:05:36,757 INFO L226 Difference]: Without dead ends: 476
[2024-11-08 16:05:36,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110
[2024-11-08 16:05:36,759 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 6 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:36,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 255 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 16:05:36,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states.
[2024-11-08 16:05:36,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 401.
[2024-11-08 16:05:36,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 320 states have (on average 1.128125) internal successors, (361), 312 states have internal predecessors, (361), 48 states have call successors, (48), 18 states have call predecessors, (48), 29 states have return successors, (111), 70 states have call predecessors, (111), 47 states have call successors, (111)
[2024-11-08 16:05:36,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 520 transitions.
[2024-11-08 16:05:36,817 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 520 transitions. Word has length 75
[2024-11-08 16:05:36,818 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:36,818 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 520 transitions.
[2024-11-08 16:05:36,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)
[2024-11-08 16:05:36,818 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 520 transitions.
[2024-11-08 16:05:36,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2024-11-08 16:05:36,820 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:36,820 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:36,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-08 16:05:36,820 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:36,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:36,821 INFO L85 PathProgramCache]: Analyzing trace with hash -121328009, now seen corresponding path program 1 times
[2024-11-08 16:05:36,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:36,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739644691]
[2024-11-08 16:05:36,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:36,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50
[2024-11-08 16:05:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58
[2024-11-08 16:05:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2024-11-08 16:05:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:36,942 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked.
[2024-11-08 16:05:36,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:36,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739644691]
[2024-11-08 16:05:36,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739644691] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:36,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145328281]
[2024-11-08 16:05:36,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:36,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:36,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:36,946 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:36,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-08 16:05:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:37,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:37,020 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 75 proven. 48 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 16:05:37,462 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:05:38,103 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 75 proven. 48 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 16:05:38,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145328281] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:05:38,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:05:38,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 21, 21] total 42
[2024-11-08 16:05:38,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762098159]
[2024-11-08 16:05:38,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:05:38,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states
[2024-11-08 16:05:38,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:38,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants.
[2024-11-08 16:05:38,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1525, Unknown=0, NotChecked=0, Total=1722
[2024-11-08 16:05:38,109 INFO L87 Difference]: Start difference. First operand 401 states and 520 transitions. Second operand has 42 states, 40 states have (on average 3.325) internal successors, (133), 26 states have internal predecessors, (133), 21 states have call successors, (27), 17 states have call predecessors, (27), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10)
[2024-11-08 16:05:39,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:39,586 INFO L93 Difference]: Finished difference Result 824 states and 1112 transitions.
[2024-11-08 16:05:39,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states.
[2024-11-08 16:05:39,587 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 40 states have (on average 3.325) internal successors, (133), 26 states have internal predecessors, (133), 21 states have call successors, (27), 17 states have call predecessors, (27), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 84
[2024-11-08 16:05:39,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:39,590 INFO L225 Difference]: With dead ends: 824
[2024-11-08 16:05:39,590 INFO L226 Difference]: Without dead ends: 477
[2024-11-08 16:05:39,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 151 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1342 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=712, Invalid=3980, Unknown=0, NotChecked=0, Total=4692
[2024-11-08 16:05:39,595 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 552 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:39,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 580 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-08 16:05:39,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states.
[2024-11-08 16:05:39,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 426.
[2024-11-08 16:05:39,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 339 states have (on average 1.12094395280236) internal successors, (380), 333 states have internal predecessors, (380), 52 states have call successors, (52), 20 states have call predecessors, (52), 31 states have return successors, (110), 72 states have call predecessors, (110), 51 states have call successors, (110)
[2024-11-08 16:05:39,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 542 transitions.
[2024-11-08 16:05:39,628 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 542 transitions. Word has length 84
[2024-11-08 16:05:39,628 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:39,628 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 542 transitions.
[2024-11-08 16:05:39,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 40 states have (on average 3.325) internal successors, (133), 26 states have internal predecessors, (133), 21 states have call successors, (27), 17 states have call predecessors, (27), 3 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10)
[2024-11-08 16:05:39,629 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 542 transitions.
[2024-11-08 16:05:39,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-11-08 16:05:39,630 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:39,630 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:39,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2024-11-08 16:05:39,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:39,834 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:39,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:39,835 INFO L85 PathProgramCache]: Analyzing trace with hash 679118242, now seen corresponding path program 1 times
[2024-11-08 16:05:39,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:39,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824766331]
[2024-11-08 16:05:39,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:39,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:39,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2024-11-08 16:05:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:39,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:39,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2024-11-08 16:05:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:39,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2024-11-08 16:05:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2024-11-08 16:05:39,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:39,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824766331]
[2024-11-08 16:05:39,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824766331] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:05:39,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:05:39,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 16:05:39,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764006677]
[2024-11-08 16:05:39,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:05:39,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 16:05:39,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:39,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 16:05:39,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 16:05:39,935 INFO L87 Difference]: Start difference. First operand 426 states and 542 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-08 16:05:39,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:39,988 INFO L93 Difference]: Finished difference Result 442 states and 561 transitions.
[2024-11-08 16:05:39,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 16:05:39,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 79
[2024-11-08 16:05:39,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:39,992 INFO L225 Difference]: With dead ends: 442
[2024-11-08 16:05:39,992 INFO L226 Difference]: Without dead ends: 441
[2024-11-08 16:05:39,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 16:05:39,993 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:39,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 111 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:05:39,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states.
[2024-11-08 16:05:40,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 421.
[2024-11-08 16:05:40,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 334 states have (on average 1.1167664670658684) internal successors, (373), 330 states have internal predecessors, (373), 51 states have call successors, (51), 20 states have call predecessors, (51), 32 states have return successors, (111), 70 states have call predecessors, (111), 50 states have call successors, (111)
[2024-11-08 16:05:40,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 535 transitions.
[2024-11-08 16:05:40,027 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 535 transitions. Word has length 79
[2024-11-08 16:05:40,027 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:40,028 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 535 transitions.
[2024-11-08 16:05:40,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-08 16:05:40,028 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 535 transitions.
[2024-11-08 16:05:40,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-11-08 16:05:40,030 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:40,030 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:40,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-11-08 16:05:40,031 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:40,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:40,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1548070850, now seen corresponding path program 1 times
[2024-11-08 16:05:40,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:40,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920804418]
[2024-11-08 16:05:40,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:40,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:40,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-08 16:05:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:40,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:40,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:40,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66
[2024-11-08 16:05:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:40,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:40,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:40,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2024-11-08 16:05:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:40,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-08 16:05:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:40,524 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 56 proven. 93 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2024-11-08 16:05:40,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:40,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920804418]
[2024-11-08 16:05:40,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920804418] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:40,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106190818]
[2024-11-08 16:05:40,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:40,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:40,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:40,528 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:40,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-08 16:05:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:40,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:40,603 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:40,777 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 63 proven. 96 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-11-08 16:05:40,777 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:05:41,226 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 63 proven. 96 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2024-11-08 16:05:41,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106190818] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:05:41,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:05:41,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 24
[2024-11-08 16:05:41,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925858065]
[2024-11-08 16:05:41,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:05:41,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-11-08 16:05:41,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:41,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-08 16:05:41,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552
[2024-11-08 16:05:41,232 INFO L87 Difference]: Start difference. First operand 421 states and 535 transitions. Second operand has 24 states, 23 states have (on average 4.478260869565218) internal successors, (103), 18 states have internal predecessors, (103), 13 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13)
[2024-11-08 16:05:41,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:41,930 INFO L93 Difference]: Finished difference Result 781 states and 991 transitions.
[2024-11-08 16:05:41,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states.
[2024-11-08 16:05:41,931 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.478260869565218) internal successors, (103), 18 states have internal predecessors, (103), 13 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) Word has length 111
[2024-11-08 16:05:41,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:41,935 INFO L225 Difference]: With dead ends: 781
[2024-11-08 16:05:41,935 INFO L226 Difference]: Without dead ends: 436
[2024-11-08 16:05:41,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 223 SyntacticMatches, 15 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=281, Invalid=1441, Unknown=0, NotChecked=0, Total=1722
[2024-11-08 16:05:41,939 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 262 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:41,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 358 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 16:05:41,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states.
[2024-11-08 16:05:41,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 423.
[2024-11-08 16:05:41,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 335 states have (on average 1.1164179104477612) internal successors, (374), 332 states have internal predecessors, (374), 51 states have call successors, (51), 21 states have call predecessors, (51), 33 states have return successors, (109), 69 states have call predecessors, (109), 50 states have call successors, (109)
[2024-11-08 16:05:41,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 534 transitions.
[2024-11-08 16:05:41,978 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 534 transitions. Word has length 111
[2024-11-08 16:05:41,979 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:41,979 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 534 transitions.
[2024-11-08 16:05:41,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.478260869565218) internal successors, (103), 18 states have internal predecessors, (103), 13 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13)
[2024-11-08 16:05:41,980 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 534 transitions.
[2024-11-08 16:05:41,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89
[2024-11-08 16:05:41,981 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:41,981 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:42,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2024-11-08 16:05:42,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21
[2024-11-08 16:05:42,186 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:42,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:42,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1108261630, now seen corresponding path program 1 times
[2024-11-08 16:05:42,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:42,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641766594]
[2024-11-08 16:05:42,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:42,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:42,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-08 16:05:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:42,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:42,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:42,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:42,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:05:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:42,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79
[2024-11-08 16:05:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:42,564 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 11 proven. 80 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked.
[2024-11-08 16:05:42,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:42,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641766594]
[2024-11-08 16:05:42,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641766594] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:42,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903094186]
[2024-11-08 16:05:42,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:42,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:42,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:42,567 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:42,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-08 16:05:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:42,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:42,652 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:42,825 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 34 proven. 73 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-11-08 16:05:42,825 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:05:43,215 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 14 proven. 83 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2024-11-08 16:05:43,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903094186] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:05:43,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:05:43,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 24
[2024-11-08 16:05:43,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467000846]
[2024-11-08 16:05:43,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:05:43,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-11-08 16:05:43,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:43,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-08 16:05:43,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552
[2024-11-08 16:05:43,218 INFO L87 Difference]: Start difference. First operand 423 states and 534 transitions. Second operand has 24 states, 23 states have (on average 4.391304347826087) internal successors, (101), 19 states have internal predecessors, (101), 12 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14)
[2024-11-08 16:05:43,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:43,832 INFO L93 Difference]: Finished difference Result 821 states and 1055 transitions.
[2024-11-08 16:05:43,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2024-11-08 16:05:43,833 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.391304347826087) internal successors, (101), 19 states have internal predecessors, (101), 12 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14) Word has length 88
[2024-11-08 16:05:43,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:43,837 INFO L225 Difference]: With dead ends: 821
[2024-11-08 16:05:43,837 INFO L226 Difference]: Without dead ends: 456
[2024-11-08 16:05:43,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 178 SyntacticMatches, 13 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992
[2024-11-08 16:05:43,840 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 165 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:43,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 702 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 16:05:43,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states.
[2024-11-08 16:05:43,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 419.
[2024-11-08 16:05:43,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 332 states have (on average 1.1144578313253013) internal successors, (370), 328 states have internal predecessors, (370), 51 states have call successors, (51), 21 states have call predecessors, (51), 32 states have return successors, (100), 69 states have call predecessors, (100), 49 states have call successors, (100)
[2024-11-08 16:05:43,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 521 transitions.
[2024-11-08 16:05:43,876 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 521 transitions. Word has length 88
[2024-11-08 16:05:43,877 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:43,877 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 521 transitions.
[2024-11-08 16:05:43,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.391304347826087) internal successors, (101), 19 states have internal predecessors, (101), 12 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (14), 8 states have call predecessors, (14), 7 states have call successors, (14)
[2024-11-08 16:05:43,877 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 521 transitions.
[2024-11-08 16:05:43,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90
[2024-11-08 16:05:43,879 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:43,879 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:43,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2024-11-08 16:05:44,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:44,083 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:44,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:44,084 INFO L85 PathProgramCache]: Analyzing trace with hash 870027817, now seen corresponding path program 1 times
[2024-11-08 16:05:44,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:44,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416610443]
[2024-11-08 16:05:44,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:44,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:44,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-08 16:05:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:44,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:44,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:44,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:44,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:05:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:44,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80
[2024-11-08 16:05:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2024-11-08 16:05:44,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:44,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416610443]
[2024-11-08 16:05:44,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416610443] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:44,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641431691]
[2024-11-08 16:05:44,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:44,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:44,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:44,346 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:44,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-08 16:05:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:44,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:44,410 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:44,491 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2024-11-08 16:05:44,492 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:05:44,724 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 18 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2024-11-08 16:05:44,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641431691] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:05:44,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:05:44,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 17
[2024-11-08 16:05:44,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373922437]
[2024-11-08 16:05:44,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:05:44,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-08 16:05:44,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:44,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-08 16:05:44,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272
[2024-11-08 16:05:44,729 INFO L87 Difference]: Start difference. First operand 419 states and 521 transitions. Second operand has 17 states, 16 states have (on average 4.375) internal successors, (70), 12 states have internal predecessors, (70), 7 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6)
[2024-11-08 16:05:45,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:45,068 INFO L93 Difference]: Finished difference Result 757 states and 944 transitions.
[2024-11-08 16:05:45,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-11-08 16:05:45,070 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.375) internal successors, (70), 12 states have internal predecessors, (70), 7 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 89
[2024-11-08 16:05:45,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:45,073 INFO L225 Difference]: With dead ends: 757
[2024-11-08 16:05:45,076 INFO L226 Difference]: Without dead ends: 423
[2024-11-08 16:05:45,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 180 SyntacticMatches, 12 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462
[2024-11-08 16:05:45,079 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 173 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:45,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 501 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 16:05:45,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states.
[2024-11-08 16:05:45,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 413.
[2024-11-08 16:05:45,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 326 states have (on average 1.116564417177914) internal successors, (364), 325 states have internal predecessors, (364), 51 states have call successors, (51), 21 states have call predecessors, (51), 32 states have return successors, (97), 66 states have call predecessors, (97), 49 states have call successors, (97)
[2024-11-08 16:05:45,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 512 transitions.
[2024-11-08 16:05:45,112 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 512 transitions. Word has length 89
[2024-11-08 16:05:45,113 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:45,113 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 512 transitions.
[2024-11-08 16:05:45,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.375) internal successors, (70), 12 states have internal predecessors, (70), 7 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6)
[2024-11-08 16:05:45,113 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 512 transitions.
[2024-11-08 16:05:45,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94
[2024-11-08 16:05:45,115 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:45,115 INFO L215 NwaCegarLoop]: trace histogram [7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:45,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-11-08 16:05:45,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:45,319 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:45,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:45,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1952719999, now seen corresponding path program 1 times
[2024-11-08 16:05:45,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:45,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228536218]
[2024-11-08 16:05:45,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:45,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:45,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-08 16:05:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:45,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:45,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:45,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2024-11-08 16:05:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:45,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-08 16:05:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:45,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2024-11-08 16:05:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:45,681 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 41 proven. 73 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2024-11-08 16:05:45,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:45,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228536218]
[2024-11-08 16:05:45,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228536218] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:45,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629509873]
[2024-11-08 16:05:45,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:45,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:45,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:45,684 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:45,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-08 16:05:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:45,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:45,753 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked.
[2024-11-08 16:05:45,956 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:05:46,524 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2024-11-08 16:05:46,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629509873] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:05:46,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:05:46,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9, 11] total 34
[2024-11-08 16:05:46,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014649803]
[2024-11-08 16:05:46,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:05:46,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2024-11-08 16:05:46,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:46,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2024-11-08 16:05:46,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1022, Unknown=0, NotChecked=0, Total=1122
[2024-11-08 16:05:46,528 INFO L87 Difference]: Start difference. First operand 413 states and 512 transitions. Second operand has 34 states, 33 states have (on average 3.303030303030303) internal successors, (109), 28 states have internal predecessors, (109), 14 states have call successors, (17), 7 states have call predecessors, (17), 8 states have return successors, (15), 11 states have call predecessors, (15), 8 states have call successors, (15)
[2024-11-08 16:05:48,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:48,642 INFO L93 Difference]: Finished difference Result 889 states and 1198 transitions.
[2024-11-08 16:05:48,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states.
[2024-11-08 16:05:48,643 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.303030303030303) internal successors, (109), 28 states have internal predecessors, (109), 14 states have call successors, (17), 7 states have call predecessors, (17), 8 states have return successors, (15), 11 states have call predecessors, (15), 8 states have call successors, (15) Word has length 93
[2024-11-08 16:05:48,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:48,646 INFO L225 Difference]: With dead ends: 889
[2024-11-08 16:05:48,646 INFO L226 Difference]: Without dead ends: 522
[2024-11-08 16:05:48,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 199 SyntacticMatches, 3 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1856 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=866, Invalid=6274, Unknown=0, NotChecked=0, Total=7140
[2024-11-08 16:05:48,652 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 336 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 2128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:48,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 522 Invalid, 2128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-08 16:05:48,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states.
[2024-11-08 16:05:48,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 426.
[2024-11-08 16:05:48,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 337 states have (on average 1.1216617210682494) internal successors, (378), 335 states have internal predecessors, (378), 49 states have call successors, (49), 21 states have call predecessors, (49), 36 states have return successors, (103), 69 states have call predecessors, (103), 48 states have call successors, (103)
[2024-11-08 16:05:48,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 530 transitions.
[2024-11-08 16:05:48,691 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 530 transitions. Word has length 93
[2024-11-08 16:05:48,691 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:48,692 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 530 transitions.
[2024-11-08 16:05:48,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.303030303030303) internal successors, (109), 28 states have internal predecessors, (109), 14 states have call successors, (17), 7 states have call predecessors, (17), 8 states have return successors, (15), 11 states have call predecessors, (15), 8 states have call successors, (15)
[2024-11-08 16:05:48,692 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 530 transitions.
[2024-11-08 16:05:48,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-11-08 16:05:48,693 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:48,694 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:48,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-11-08 16:05:48,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24
[2024-11-08 16:05:48,894 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:48,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:48,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1606036922, now seen corresponding path program 1 times
[2024-11-08 16:05:48,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:48,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082292331]
[2024-11-08 16:05:48,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:48,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:49,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-08 16:05:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:49,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:49,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:49,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:49,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:05:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:49,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80
[2024-11-08 16:05:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:49,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:49,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:49,338 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked.
[2024-11-08 16:05:49,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:49,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082292331]
[2024-11-08 16:05:49,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082292331] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:49,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279830609]
[2024-11-08 16:05:49,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:49,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:49,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:49,347 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:49,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-08 16:05:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:49,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:49,434 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:49,598 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked.
[2024-11-08 16:05:49,598 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:05:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked.
[2024-11-08 16:05:50,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279830609] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:05:50,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:05:50,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 15] total 28
[2024-11-08 16:05:50,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571279606]
[2024-11-08 16:05:50,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:05:50,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states
[2024-11-08 16:05:50,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:50,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants.
[2024-11-08 16:05:50,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=699, Unknown=0, NotChecked=0, Total=812
[2024-11-08 16:05:50,198 INFO L87 Difference]: Start difference. First operand 426 states and 530 transitions. Second operand has 29 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 29 states have internal predecessors, (79), 7 states have call successors, (9), 1 states have call predecessors, (9), 10 states have return successors, (17), 16 states have call predecessors, (17), 7 states have call successors, (17)
[2024-11-08 16:05:50,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:50,651 INFO L93 Difference]: Finished difference Result 636 states and 865 transitions.
[2024-11-08 16:05:50,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states.
[2024-11-08 16:05:50,652 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 29 states have internal predecessors, (79), 7 states have call successors, (9), 1 states have call predecessors, (9), 10 states have return successors, (17), 16 states have call predecessors, (17), 7 states have call successors, (17) Word has length 107
[2024-11-08 16:05:50,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:50,656 INFO L225 Difference]: With dead ends: 636
[2024-11-08 16:05:50,656 INFO L226 Difference]: Without dead ends: 634
[2024-11-08 16:05:50,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 213 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=230, Invalid=1330, Unknown=0, NotChecked=0, Total=1560
[2024-11-08 16:05:50,658 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 29 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:50,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 566 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 16:05:50,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states.
[2024-11-08 16:05:50,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 526.
[2024-11-08 16:05:50,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 416 states have (on average 1.0913461538461537) internal successors, (454), 414 states have internal predecessors, (454), 57 states have call successors, (57), 21 states have call predecessors, (57), 49 states have return successors, (160), 90 states have call predecessors, (160), 56 states have call successors, (160)
[2024-11-08 16:05:50,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 671 transitions.
[2024-11-08 16:05:50,705 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 671 transitions. Word has length 107
[2024-11-08 16:05:50,706 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:50,706 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 671 transitions.
[2024-11-08 16:05:50,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 29 states have internal predecessors, (79), 7 states have call successors, (9), 1 states have call predecessors, (9), 10 states have return successors, (17), 16 states have call predecessors, (17), 7 states have call successors, (17)
[2024-11-08 16:05:50,706 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 671 transitions.
[2024-11-08 16:05:50,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-08 16:05:50,708 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:50,708 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:50,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-11-08 16:05:50,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:50,909 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:50,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:50,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1752462871, now seen corresponding path program 1 times
[2024-11-08 16:05:50,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:50,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169352959]
[2024-11-08 16:05:50,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:50,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:51,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-08 16:05:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:51,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:51,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:51,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:51,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:05:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:51,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80
[2024-11-08 16:05:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:51,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:51,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:51,301 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked.
[2024-11-08 16:05:51,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:51,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169352959]
[2024-11-08 16:05:51,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169352959] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:51,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163612459]
[2024-11-08 16:05:51,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:51,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:51,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:51,304 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:51,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-11-08 16:05:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:51,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:51,407 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:51,585 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked.
[2024-11-08 16:05:51,585 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:05:52,214 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked.
[2024-11-08 16:05:52,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163612459] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:05:52,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:05:52,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 16] total 26
[2024-11-08 16:05:52,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336484447]
[2024-11-08 16:05:52,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:05:52,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2024-11-08 16:05:52,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:52,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2024-11-08 16:05:52,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702
[2024-11-08 16:05:52,217 INFO L87 Difference]: Start difference. First operand 526 states and 671 transitions. Second operand has 27 states, 26 states have (on average 2.923076923076923) internal successors, (76), 27 states have internal predecessors, (76), 7 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (17), 17 states have call predecessors, (17), 7 states have call successors, (17)
[2024-11-08 16:05:52,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:52,593 INFO L93 Difference]: Finished difference Result 817 states and 1162 transitions.
[2024-11-08 16:05:52,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2024-11-08 16:05:52,594 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.923076923076923) internal successors, (76), 27 states have internal predecessors, (76), 7 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (17), 17 states have call predecessors, (17), 7 states have call successors, (17) Word has length 108
[2024-11-08 16:05:52,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:52,600 INFO L225 Difference]: With dead ends: 817
[2024-11-08 16:05:52,600 INFO L226 Difference]: Without dead ends: 815
[2024-11-08 16:05:52,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 215 SyntacticMatches, 7 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=844, Unknown=0, NotChecked=0, Total=992
[2024-11-08 16:05:52,603 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 14 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:52,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 509 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 16:05:52,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states.
[2024-11-08 16:05:52,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 646.
[2024-11-08 16:05:52,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 510 states have (on average 1.0705882352941176) internal successors, (546), 508 states have internal predecessors, (546), 67 states have call successors, (67), 21 states have call predecessors, (67), 65 states have return successors, (294), 116 states have call predecessors, (294), 66 states have call successors, (294)
[2024-11-08 16:05:52,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 907 transitions.
[2024-11-08 16:05:52,685 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 907 transitions. Word has length 108
[2024-11-08 16:05:52,686 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:52,686 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 907 transitions.
[2024-11-08 16:05:52,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.923076923076923) internal successors, (76), 27 states have internal predecessors, (76), 7 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (17), 17 states have call predecessors, (17), 7 states have call successors, (17)
[2024-11-08 16:05:52,686 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 907 transitions.
[2024-11-08 16:05:52,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2024-11-08 16:05:52,689 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:52,689 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:05:52,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0
[2024-11-08 16:05:52,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26
[2024-11-08 16:05:52,890 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:52,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:52,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1104785409, now seen corresponding path program 1 times
[2024-11-08 16:05:52,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:52,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372666574]
[2024-11-08 16:05:52,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:52,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:53,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2024-11-08 16:05:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:53,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:53,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:53,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:53,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:53,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:05:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:53,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:05:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:53,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:53,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:53,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113
[2024-11-08 16:05:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:53,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:53,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:53,241 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked.
[2024-11-08 16:05:53,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:53,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372666574]
[2024-11-08 16:05:53,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372666574] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:53,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213506904]
[2024-11-08 16:05:53,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:53,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:53,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:53,244 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:53,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-11-08 16:05:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:53,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:53,344 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:53,453 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked.
[2024-11-08 16:05:53,454 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:05:53,882 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 68 proven. 114 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked.
[2024-11-08 16:05:53,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213506904] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:05:53,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:05:53,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 20
[2024-11-08 16:05:53,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777567797]
[2024-11-08 16:05:53,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:05:53,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-11-08 16:05:53,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:53,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-11-08 16:05:53,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380
[2024-11-08 16:05:53,887 INFO L87 Difference]: Start difference. First operand 646 states and 907 transitions. Second operand has 20 states, 19 states have (on average 4.7894736842105265) internal successors, (91), 16 states have internal predecessors, (91), 11 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (11), 5 states have call predecessors, (11), 7 states have call successors, (11)
[2024-11-08 16:05:54,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:54,511 INFO L93 Difference]: Finished difference Result 1275 states and 1822 transitions.
[2024-11-08 16:05:54,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-08 16:05:54,512 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.7894736842105265) internal successors, (91), 16 states have internal predecessors, (91), 11 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (11), 5 states have call predecessors, (11), 7 states have call successors, (11) Word has length 142
[2024-11-08 16:05:54,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:54,518 INFO L225 Difference]: With dead ends: 1275
[2024-11-08 16:05:54,518 INFO L226 Difference]: Without dead ends: 666
[2024-11-08 16:05:54,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 295 SyntacticMatches, 11 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600
[2024-11-08 16:05:54,523 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 147 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:54,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 525 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 16:05:54,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states.
[2024-11-08 16:05:54,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 658.
[2024-11-08 16:05:54,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 520 states have (on average 1.0673076923076923) internal successors, (555), 517 states have internal predecessors, (555), 68 states have call successors, (68), 21 states have call predecessors, (68), 66 states have return successors, (299), 119 states have call predecessors, (299), 67 states have call successors, (299)
[2024-11-08 16:05:54,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 922 transitions.
[2024-11-08 16:05:54,606 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 922 transitions. Word has length 142
[2024-11-08 16:05:54,606 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:54,606 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 922 transitions.
[2024-11-08 16:05:54,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.7894736842105265) internal successors, (91), 16 states have internal predecessors, (91), 11 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (11), 5 states have call predecessors, (11), 7 states have call successors, (11)
[2024-11-08 16:05:54,607 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 922 transitions.
[2024-11-08 16:05:54,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162
[2024-11-08 16:05:54,609 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:54,609 INFO L215 NwaCegarLoop]: trace histogram [10, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1]
[2024-11-08 16:05:54,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0
[2024-11-08 16:05:54,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27
[2024-11-08 16:05:54,813 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:54,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:54,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1146617985, now seen corresponding path program 2 times
[2024-11-08 16:05:54,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:54,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879061957]
[2024-11-08 16:05:54,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:54,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2024-11-08 16:05:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:05:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:05:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113
[2024-11-08 16:05:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:05:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,621 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked.
[2024-11-08 16:05:55,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:55,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879061957]
[2024-11-08 16:05:55,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879061957] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:55,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507303520]
[2024-11-08 16:05:55,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 16:05:55,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:55,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:55,625 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:55,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2024-11-08 16:05:55,740 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 16:05:55,741 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 16:05:55,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:55,747 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:56,086 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked.
[2024-11-08 16:05:56,086 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:05:57,636 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 74 proven. 54 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2024-11-08 16:05:57,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507303520] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:05:57,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:05:57,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 22] total 36
[2024-11-08 16:05:57,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392899560]
[2024-11-08 16:05:57,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:05:57,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states
[2024-11-08 16:05:57,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:05:57,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants.
[2024-11-08 16:05:57,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1152, Unknown=0, NotChecked=0, Total=1332
[2024-11-08 16:05:57,640 INFO L87 Difference]: Start difference. First operand 658 states and 922 transitions. Second operand has 37 states, 36 states have (on average 2.7777777777777777) internal successors, (100), 37 states have internal predecessors, (100), 9 states have call successors, (11), 1 states have call predecessors, (11), 11 states have return successors, (24), 24 states have call predecessors, (24), 9 states have call successors, (24)
[2024-11-08 16:05:58,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:05:58,243 INFO L93 Difference]: Finished difference Result 895 states and 1296 transitions.
[2024-11-08 16:05:58,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states.
[2024-11-08 16:05:58,243 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.7777777777777777) internal successors, (100), 37 states have internal predecessors, (100), 9 states have call successors, (11), 1 states have call predecessors, (11), 11 states have return successors, (24), 24 states have call predecessors, (24), 9 states have call successors, (24) Word has length 161
[2024-11-08 16:05:58,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:05:58,251 INFO L225 Difference]: With dead ends: 895
[2024-11-08 16:05:58,251 INFO L226 Difference]: Without dead ends: 893
[2024-11-08 16:05:58,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 326 SyntacticMatches, 16 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1126 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=306, Invalid=1950, Unknown=0, NotChecked=0, Total=2256
[2024-11-08 16:05:58,258 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 22 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 16:05:58,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 514 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 16:05:58,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states.
[2024-11-08 16:05:58,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 647.
[2024-11-08 16:05:58,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 509 states have (on average 1.0491159135559922) internal successors, (534), 510 states have internal predecessors, (534), 67 states have call successors, (67), 21 states have call predecessors, (67), 67 states have return successors, (287), 115 states have call predecessors, (287), 66 states have call successors, (287)
[2024-11-08 16:05:58,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 888 transitions.
[2024-11-08 16:05:58,342 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 888 transitions. Word has length 161
[2024-11-08 16:05:58,342 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:05:58,343 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 888 transitions.
[2024-11-08 16:05:58,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.7777777777777777) internal successors, (100), 37 states have internal predecessors, (100), 9 states have call successors, (11), 1 states have call predecessors, (11), 11 states have return successors, (24), 24 states have call predecessors, (24), 9 states have call successors, (24)
[2024-11-08 16:05:58,343 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 888 transitions.
[2024-11-08 16:05:58,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234
[2024-11-08 16:05:58,346 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:05:58,347 INFO L215 NwaCegarLoop]: trace histogram [14, 12, 11, 11, 10, 9, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1]
[2024-11-08 16:05:58,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0
[2024-11-08 16:05:58,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28
[2024-11-08 16:05:58,551 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:05:58,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:05:58,552 INFO L85 PathProgramCache]: Analyzing trace with hash -8025839, now seen corresponding path program 2 times
[2024-11-08 16:05:58,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:05:58,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084273861]
[2024-11-08 16:05:58,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:05:58,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:05:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 16:05:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:05:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:05:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:05:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:05:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165
[2024-11-08 16:05:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:58,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:59,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:59,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:05:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:59,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:05:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:59,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:05:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:59,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:05:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:05:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 245 proven. 159 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked.
[2024-11-08 16:05:59,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:05:59,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084273861]
[2024-11-08 16:05:59,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084273861] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:05:59,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019362965]
[2024-11-08 16:05:59,124 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 16:05:59,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:05:59,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:05:59,126 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:05:59,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-11-08 16:05:59,282 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 16:05:59,283 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 16:05:59,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-08 16:05:59,294 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:05:59,478 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 504 proven. 126 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked.
[2024-11-08 16:05:59,478 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:06:00,278 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 109 proven. 240 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked.
[2024-11-08 16:06:00,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019362965] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:06:00,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:06:00,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14, 15] total 26
[2024-11-08 16:06:00,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058089047]
[2024-11-08 16:06:00,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:06:00,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2024-11-08 16:06:00,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:06:00,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2024-11-08 16:06:00,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650
[2024-11-08 16:06:00,282 INFO L87 Difference]: Start difference. First operand 647 states and 888 transitions. Second operand has 26 states, 25 states have (on average 5.96) internal successors, (149), 23 states have internal predecessors, (149), 14 states have call successors, (27), 5 states have call predecessors, (27), 8 states have return successors, (26), 14 states have call predecessors, (26), 11 states have call successors, (26)
[2024-11-08 16:06:01,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:06:01,150 INFO L93 Difference]: Finished difference Result 1229 states and 1789 transitions.
[2024-11-08 16:06:01,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states.
[2024-11-08 16:06:01,151 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.96) internal successors, (149), 23 states have internal predecessors, (149), 14 states have call successors, (27), 5 states have call predecessors, (27), 8 states have return successors, (26), 14 states have call predecessors, (26), 11 states have call successors, (26) Word has length 233
[2024-11-08 16:06:01,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:06:01,158 INFO L225 Difference]: With dead ends: 1229
[2024-11-08 16:06:01,158 INFO L226 Difference]: Without dead ends: 656
[2024-11-08 16:06:01,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 495 SyntacticMatches, 10 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=199, Invalid=1133, Unknown=0, NotChecked=0, Total=1332
[2024-11-08 16:06:01,165 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 195 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 16:06:01,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 685 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 16:06:01,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states.
[2024-11-08 16:06:01,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 590.
[2024-11-08 16:06:01,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 464 states have (on average 1.0495689655172413) internal successors, (487), 465 states have internal predecessors, (487), 66 states have call successors, (66), 23 states have call predecessors, (66), 56 states have return successors, (195), 101 states have call predecessors, (195), 65 states have call successors, (195)
[2024-11-08 16:06:01,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 748 transitions.
[2024-11-08 16:06:01,238 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 748 transitions. Word has length 233
[2024-11-08 16:06:01,239 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:06:01,239 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 748 transitions.
[2024-11-08 16:06:01,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.96) internal successors, (149), 23 states have internal predecessors, (149), 14 states have call successors, (27), 5 states have call predecessors, (27), 8 states have return successors, (26), 14 states have call predecessors, (26), 11 states have call successors, (26)
[2024-11-08 16:06:01,243 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 748 transitions.
[2024-11-08 16:06:01,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216
[2024-11-08 16:06:01,251 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:06:01,251 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 1, 1, 1, 1, 1]
[2024-11-08 16:06:01,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0
[2024-11-08 16:06:01,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:06:01,452 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:06:01,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:06:01,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1629987948, now seen corresponding path program 3 times
[2024-11-08 16:06:01,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:06:01,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726691689]
[2024-11-08 16:06:01,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:06:01,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:06:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 16:06:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166
[2024-11-08 16:06:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-08 16:06:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:01,963 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 180 proven. 146 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked.
[2024-11-08 16:06:01,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:06:01,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726691689]
[2024-11-08 16:06:01,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726691689] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:06:01,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623195315]
[2024-11-08 16:06:01,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-08 16:06:01,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:06:01,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:06:01,966 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:06:01,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2024-11-08 16:06:02,083 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2024-11-08 16:06:02,083 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 16:06:02,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-08 16:06:02,088 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:06:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 201 proven. 4 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked.
[2024-11-08 16:06:02,267 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:06:02,917 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 201 proven. 4 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked.
[2024-11-08 16:06:02,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623195315] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:06:02,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:06:02,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 26
[2024-11-08 16:06:02,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007960311]
[2024-11-08 16:06:02,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:06:02,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2024-11-08 16:06:02,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:06:02,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2024-11-08 16:06:02,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=566, Unknown=0, NotChecked=0, Total=650
[2024-11-08 16:06:02,921 INFO L87 Difference]: Start difference. First operand 590 states and 748 transitions. Second operand has 26 states, 25 states have (on average 4.72) internal successors, (118), 23 states have internal predecessors, (118), 12 states have call successors, (19), 4 states have call predecessors, (19), 8 states have return successors, (17), 11 states have call predecessors, (17), 9 states have call successors, (17)
[2024-11-08 16:06:03,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:06:03,779 INFO L93 Difference]: Finished difference Result 1020 states and 1333 transitions.
[2024-11-08 16:06:03,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states.
[2024-11-08 16:06:03,780 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.72) internal successors, (118), 23 states have internal predecessors, (118), 12 states have call successors, (19), 4 states have call predecessors, (19), 8 states have return successors, (17), 11 states have call predecessors, (17), 9 states have call successors, (17) Word has length 215
[2024-11-08 16:06:03,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:06:03,784 INFO L225 Difference]: With dead ends: 1020
[2024-11-08 16:06:03,785 INFO L226 Difference]: Without dead ends: 514
[2024-11-08 16:06:03,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 459 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=188, Invalid=1144, Unknown=0, NotChecked=0, Total=1332
[2024-11-08 16:06:03,790 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 180 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 16:06:03,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 796 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 16:06:03,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states.
[2024-11-08 16:06:03,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 493.
[2024-11-08 16:06:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 387 states have (on average 1.049095607235142) internal successors, (406), 390 states have internal predecessors, (406), 56 states have call successors, (56), 24 states have call predecessors, (56), 46 states have return successors, (112), 78 states have call predecessors, (112), 55 states have call successors, (112)
[2024-11-08 16:06:03,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 574 transitions.
[2024-11-08 16:06:03,850 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 574 transitions. Word has length 215
[2024-11-08 16:06:03,850 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:06:03,850 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 574 transitions.
[2024-11-08 16:06:03,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.72) internal successors, (118), 23 states have internal predecessors, (118), 12 states have call successors, (19), 4 states have call predecessors, (19), 8 states have return successors, (17), 11 states have call predecessors, (17), 9 states have call successors, (17)
[2024-11-08 16:06:03,851 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 574 transitions.
[2024-11-08 16:06:03,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254
[2024-11-08 16:06:03,855 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:06:03,856 INFO L215 NwaCegarLoop]: trace histogram [14, 13, 12, 12, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 2, 1, 1, 1, 1]
[2024-11-08 16:06:03,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0
[2024-11-08 16:06:04,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:06:04,060 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:06:04,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:06:04,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1942864476, now seen corresponding path program 4 times
[2024-11-08 16:06:04,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:06:04,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907024174]
[2024-11-08 16:06:04,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:06:04,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:06:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:04,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-11-08 16:06:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166
[2024-11-08 16:06:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 148 proven. 181 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked.
[2024-11-08 16:06:05,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:06:05,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907024174]
[2024-11-08 16:06:05,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907024174] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:06:05,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656658406]
[2024-11-08 16:06:05,881 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-08 16:06:05,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:06:05,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:06:05,887 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:06:05,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2024-11-08 16:06:06,048 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-08 16:06:06,048 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 16:06:06,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 49 conjuncts are in the unsatisfiable core
[2024-11-08 16:06:06,056 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:06:06,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 148 proven. 181 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked.
[2024-11-08 16:06:06,550 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:06:10,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 218 proven. 160 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked.
[2024-11-08 16:06:10,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656658406] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:06:10,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:06:10,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 29] total 47
[2024-11-08 16:06:10,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937320999]
[2024-11-08 16:06:10,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:06:10,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states
[2024-11-08 16:06:10,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:06:10,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants.
[2024-11-08 16:06:10,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=1969, Unknown=0, NotChecked=0, Total=2256
[2024-11-08 16:06:10,733 INFO L87 Difference]: Start difference. First operand 493 states and 574 transitions. Second operand has 48 states, 47 states have (on average 2.702127659574468) internal successors, (127), 48 states have internal predecessors, (127), 12 states have call successors, (14), 1 states have call predecessors, (14), 14 states have return successors, (32), 32 states have call predecessors, (32), 12 states have call successors, (32)
[2024-11-08 16:06:11,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:06:11,186 INFO L93 Difference]: Finished difference Result 576 states and 685 transitions.
[2024-11-08 16:06:11,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states.
[2024-11-08 16:06:11,186 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.702127659574468) internal successors, (127), 48 states have internal predecessors, (127), 12 states have call successors, (14), 1 states have call predecessors, (14), 14 states have return successors, (32), 32 states have call predecessors, (32), 12 states have call successors, (32) Word has length 253
[2024-11-08 16:06:11,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:06:11,194 INFO L225 Difference]: With dead ends: 576
[2024-11-08 16:06:11,194 INFO L226 Difference]: Without dead ends: 574
[2024-11-08 16:06:11,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 522 SyntacticMatches, 33 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2196 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=323, Invalid=2227, Unknown=0, NotChecked=0, Total=2550
[2024-11-08 16:06:11,197 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 10 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 16:06:11,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 600 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 16:06:11,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states.
[2024-11-08 16:06:11,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 481.
[2024-11-08 16:06:11,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 378 states have (on average 1.0396825396825398) internal successors, (393), 381 states have internal predecessors, (393), 53 states have call successors, (53), 24 states have call predecessors, (53), 46 states have return successors, (102), 75 states have call predecessors, (102), 52 states have call successors, (102)
[2024-11-08 16:06:11,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 548 transitions.
[2024-11-08 16:06:11,254 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 548 transitions. Word has length 253
[2024-11-08 16:06:11,255 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:06:11,255 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 548 transitions.
[2024-11-08 16:06:11,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.702127659574468) internal successors, (127), 48 states have internal predecessors, (127), 12 states have call successors, (14), 1 states have call predecessors, (14), 14 states have return successors, (32), 32 states have call predecessors, (32), 12 states have call successors, (32)
[2024-11-08 16:06:11,256 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 548 transitions.
[2024-11-08 16:06:11,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347
[2024-11-08 16:06:11,263 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:06:11,263 INFO L215 NwaCegarLoop]: trace histogram [19, 18, 17, 16, 16, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 5, 3, 3, 1, 1, 1, 1]
[2024-11-08 16:06:11,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0
[2024-11-08 16:06:11,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:06:11,465 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:06:11,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:06:11,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2028835144, now seen corresponding path program 3 times
[2024-11-08 16:06:11,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:06:11,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065371299]
[2024-11-08 16:06:11,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:06:11,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:06:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151
[2024-11-08 16:06:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:11,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258
[2024-11-08 16:06:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:12,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:12,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:12,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:12,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:12,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:12,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:12,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:12,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:12,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 426 proven. 203 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked.
[2024-11-08 16:06:12,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:06:12,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065371299]
[2024-11-08 16:06:12,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065371299] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:06:12,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246039848]
[2024-11-08 16:06:12,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-08 16:06:12,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:06:12,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:06:12,195 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:06:12,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2024-11-08 16:06:12,355 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2024-11-08 16:06:12,355 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 16:06:12,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 16:06:12,361 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:06:12,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 281 proven. 4 refuted. 0 times theorem prover too weak. 1750 trivial. 0 not checked.
[2024-11-08 16:06:12,478 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:06:13,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 281 proven. 4 refuted. 0 times theorem prover too weak. 1750 trivial. 0 not checked.
[2024-11-08 16:06:13,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246039848] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:06:13,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:06:13,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7, 7] total 23
[2024-11-08 16:06:13,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006435660]
[2024-11-08 16:06:13,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:06:13,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-08 16:06:13,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:06:13,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-08 16:06:13,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506
[2024-11-08 16:06:13,180 INFO L87 Difference]: Start difference. First operand 481 states and 548 transitions. Second operand has 23 states, 22 states have (on average 4.636363636363637) internal successors, (102), 21 states have internal predecessors, (102), 10 states have call successors, (15), 3 states have call predecessors, (15), 8 states have return successors, (16), 10 states have call predecessors, (16), 8 states have call successors, (16)
[2024-11-08 16:06:13,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:06:13,921 INFO L93 Difference]: Finished difference Result 753 states and 881 transitions.
[2024-11-08 16:06:13,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states.
[2024-11-08 16:06:13,921 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.636363636363637) internal successors, (102), 21 states have internal predecessors, (102), 10 states have call successors, (15), 3 states have call predecessors, (15), 8 states have return successors, (16), 10 states have call predecessors, (16), 8 states have call successors, (16) Word has length 346
[2024-11-08 16:06:13,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:06:13,927 INFO L225 Difference]: With dead ends: 753
[2024-11-08 16:06:13,927 INFO L226 Difference]: Without dead ends: 386
[2024-11-08 16:06:13,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 784 GetRequests, 750 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=881, Unknown=0, NotChecked=0, Total=1056
[2024-11-08 16:06:13,931 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 150 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-08 16:06:13,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 477 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-08 16:06:13,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states.
[2024-11-08 16:06:13,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 338.
[2024-11-08 16:06:13,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 266 states have (on average 1.0338345864661653) internal successors, (275), 270 states have internal predecessors, (275), 41 states have call successors, (41), 23 states have call predecessors, (41), 29 states have return successors, (48), 44 states have call predecessors, (48), 40 states have call successors, (48)
[2024-11-08 16:06:13,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 364 transitions.
[2024-11-08 16:06:13,985 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 364 transitions. Word has length 346
[2024-11-08 16:06:13,986 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:06:13,986 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 364 transitions.
[2024-11-08 16:06:13,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.636363636363637) internal successors, (102), 21 states have internal predecessors, (102), 10 states have call successors, (15), 3 states have call predecessors, (15), 8 states have return successors, (16), 10 states have call predecessors, (16), 8 states have call successors, (16)
[2024-11-08 16:06:13,986 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 364 transitions.
[2024-11-08 16:06:13,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404
[2024-11-08 16:06:13,990 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:06:13,990 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 17, 16, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 6, 6, 5, 4, 1, 1, 1, 1]
[2024-11-08 16:06:14,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0
[2024-11-08 16:06:14,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:06:14,191 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:06:14,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:06:14,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1738839364, now seen corresponding path program 4 times
[2024-11-08 16:06:14,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:06:14,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299993134]
[2024-11-08 16:06:14,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:06:14,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:06:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151
[2024-11-08 16:06:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258
[2024-11-08 16:06:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2024-11-08 16:06:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2024-11-08 16:06:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 374 proven. 6 refuted. 0 times theorem prover too weak. 2406 trivial. 0 not checked.
[2024-11-08 16:06:14,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:06:14,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299993134]
[2024-11-08 16:06:14,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299993134] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:06:14,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733764224]
[2024-11-08 16:06:14,668 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-08 16:06:14,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:06:14,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:06:14,670 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:06:14,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2024-11-08 16:06:14,897 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-08 16:06:14,897 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 16:06:14,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-08 16:06:14,905 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:06:15,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 526 proven. 214 refuted. 0 times theorem prover too weak. 2046 trivial. 0 not checked.
[2024-11-08 16:06:15,146 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:06:16,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 530 proven. 216 refuted. 0 times theorem prover too weak. 2040 trivial. 0 not checked.
[2024-11-08 16:06:16,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733764224] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:06:16,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:06:16,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 15] total 20
[2024-11-08 16:06:16,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481884944]
[2024-11-08 16:06:16,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:06:16,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-11-08 16:06:16,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:06:16,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-11-08 16:06:16,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380
[2024-11-08 16:06:16,327 INFO L87 Difference]: Start difference. First operand 338 states and 364 transitions. Second operand has 20 states, 19 states have (on average 6.2105263157894735) internal successors, (118), 18 states have internal predecessors, (118), 13 states have call successors, (21), 3 states have call predecessors, (21), 6 states have return successors, (22), 8 states have call predecessors, (22), 11 states have call successors, (22)
[2024-11-08 16:06:16,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:06:16,784 INFO L93 Difference]: Finished difference Result 565 states and 618 transitions.
[2024-11-08 16:06:16,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2024-11-08 16:06:16,785 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 6.2105263157894735) internal successors, (118), 18 states have internal predecessors, (118), 13 states have call successors, (21), 3 states have call predecessors, (21), 6 states have return successors, (22), 8 states have call predecessors, (22), 11 states have call successors, (22) Word has length 403
[2024-11-08 16:06:16,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:06:16,789 INFO L225 Difference]: With dead ends: 565
[2024-11-08 16:06:16,789 INFO L226 Difference]: Without dead ends: 342
[2024-11-08 16:06:16,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 903 GetRequests, 868 SyntacticMatches, 9 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756
[2024-11-08 16:06:16,791 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 95 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 16:06:16,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 409 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 16:06:16,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states.
[2024-11-08 16:06:16,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 331.
[2024-11-08 16:06:16,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 262 states have (on average 1.0305343511450382) internal successors, (270), 263 states have internal predecessors, (270), 40 states have call successors, (40), 25 states have call predecessors, (40), 27 states have return successors, (45), 42 states have call predecessors, (45), 39 states have call successors, (45)
[2024-11-08 16:06:16,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 355 transitions.
[2024-11-08 16:06:16,828 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 355 transitions. Word has length 403
[2024-11-08 16:06:16,829 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:06:16,829 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 355 transitions.
[2024-11-08 16:06:16,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 6.2105263157894735) internal successors, (118), 18 states have internal predecessors, (118), 13 states have call successors, (21), 3 states have call predecessors, (21), 6 states have return successors, (22), 8 states have call predecessors, (22), 11 states have call successors, (22)
[2024-11-08 16:06:16,830 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 355 transitions.
[2024-11-08 16:06:16,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405
[2024-11-08 16:06:16,833 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:06:16,833 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 17, 17, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 7, 6, 4, 4, 1, 1, 1, 1]
[2024-11-08 16:06:16,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0
[2024-11-08 16:06:17,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33
[2024-11-08 16:06:17,034 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:06:17,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:06:17,035 INFO L85 PathProgramCache]: Analyzing trace with hash 322047479, now seen corresponding path program 5 times
[2024-11-08 16:06:17,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:06:17,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573460959]
[2024-11-08 16:06:17,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:06:17,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:06:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:18,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:18,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151
[2024-11-08 16:06:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:19,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258
[2024-11-08 16:06:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 432 proven. 525 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked.
[2024-11-08 16:06:20,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:06:20,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573460959]
[2024-11-08 16:06:20,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573460959] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:06:20,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188299966]
[2024-11-08 16:06:20,275 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-08 16:06:20,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:06:20,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:06:20,277 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:06:20,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2024-11-08 16:06:20,586 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s)
[2024-11-08 16:06:20,586 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 16:06:20,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 81 conjuncts are in the unsatisfiable core
[2024-11-08 16:06:20,597 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:06:21,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 432 proven. 525 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked.
[2024-11-08 16:06:21,354 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:06:31,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 585 proven. 468 refuted. 0 times theorem prover too weak. 1749 trivial. 0 not checked.
[2024-11-08 16:06:31,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188299966] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:06:31,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:06:31,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 37] total 58
[2024-11-08 16:06:31,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385359067]
[2024-11-08 16:06:31,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:06:31,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 59 states
[2024-11-08 16:06:31,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:06:31,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants.
[2024-11-08 16:06:31,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=3007, Unknown=0, NotChecked=0, Total=3422
[2024-11-08 16:06:31,829 INFO L87 Difference]: Start difference. First operand 331 states and 355 transitions. Second operand has 59 states, 58 states have (on average 2.6551724137931036) internal successors, (154), 59 states have internal predecessors, (154), 15 states have call successors, (17), 1 states have call predecessors, (17), 17 states have return successors, (40), 40 states have call predecessors, (40), 15 states have call successors, (40)
[2024-11-08 16:06:32,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:06:32,085 INFO L93 Difference]: Finished difference Result 368 states and 396 transitions.
[2024-11-08 16:06:32,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states.
[2024-11-08 16:06:32,086 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.6551724137931036) internal successors, (154), 59 states have internal predecessors, (154), 15 states have call successors, (17), 1 states have call predecessors, (17), 17 states have return successors, (40), 40 states have call predecessors, (40), 15 states have call successors, (40) Word has length 404
[2024-11-08 16:06:32,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:06:32,088 INFO L225 Difference]: With dead ends: 368
[2024-11-08 16:06:32,089 INFO L226 Difference]: Without dead ends: 358
[2024-11-08 16:06:32,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 848 SyntacticMatches, 62 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4569 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=461, Invalid=3321, Unknown=0, NotChecked=0, Total=3782
[2024-11-08 16:06:32,091 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 8 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 16:06:32,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 547 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 16:06:32,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states.
[2024-11-08 16:06:32,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 352.
[2024-11-08 16:06:32,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 279 states have (on average 1.025089605734767) internal successors, (286), 279 states have internal predecessors, (286), 43 states have call successors, (43), 25 states have call predecessors, (43), 29 states have return successors, (51), 47 states have call predecessors, (51), 42 states have call successors, (51)
[2024-11-08 16:06:32,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 380 transitions.
[2024-11-08 16:06:32,127 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 380 transitions. Word has length 404
[2024-11-08 16:06:32,128 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:06:32,128 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 380 transitions.
[2024-11-08 16:06:32,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.6551724137931036) internal successors, (154), 59 states have internal predecessors, (154), 15 states have call successors, (17), 1 states have call predecessors, (17), 17 states have return successors, (40), 40 states have call predecessors, (40), 15 states have call successors, (40)
[2024-11-08 16:06:32,128 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 380 transitions.
[2024-11-08 16:06:32,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576
[2024-11-08 16:06:32,133 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:06:32,133 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 29, 28, 24, 24, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 9, 6, 5, 1, 1, 1, 1]
[2024-11-08 16:06:32,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0
[2024-11-08 16:06:32,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34
[2024-11-08 16:06:32,334 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:06:32,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:06:32,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1882894577, now seen corresponding path program 5 times
[2024-11-08 16:06:32,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:06:32,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790095964]
[2024-11-08 16:06:32,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:06:32,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:06:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 16:06:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151
[2024-11-08 16:06:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249
[2024-11-08 16:06:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:32,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409
[2024-11-08 16:06:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112
[2024-11-08 16:06:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,270 INFO L134 CoverageAnalysis]: Checked inductivity of 5820 backedges. 907 proven. 318 refuted. 0 times theorem prover too weak. 4595 trivial. 0 not checked.
[2024-11-08 16:06:33,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:06:33,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790095964]
[2024-11-08 16:06:33,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790095964] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:06:33,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841013866]
[2024-11-08 16:06:33,271 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-08 16:06:33,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:06:33,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:06:33,273 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:06:33,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2024-11-08 16:06:33,680 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s)
[2024-11-08 16:06:33,680 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 16:06:33,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-11-08 16:06:33,692 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:06:34,062 INFO L134 CoverageAnalysis]: Checked inductivity of 5820 backedges. 811 proven. 1172 refuted. 0 times theorem prover too weak. 3837 trivial. 0 not checked.
[2024-11-08 16:06:34,062 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:06:36,870 INFO L134 CoverageAnalysis]: Checked inductivity of 5820 backedges. 819 proven. 1193 refuted. 0 times theorem prover too weak. 3808 trivial. 0 not checked.
[2024-11-08 16:06:36,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841013866] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:06:36,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:06:36,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 23] total 37
[2024-11-08 16:06:36,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23817972]
[2024-11-08 16:06:36,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:06:36,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states
[2024-11-08 16:06:36,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:06:36,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants.
[2024-11-08 16:06:36,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1156, Unknown=0, NotChecked=0, Total=1332
[2024-11-08 16:06:36,874 INFO L87 Difference]: Start difference. First operand 352 states and 380 transitions. Second operand has 37 states, 36 states have (on average 5.611111111111111) internal successors, (202), 36 states have internal predecessors, (202), 27 states have call successors, (36), 2 states have call predecessors, (36), 13 states have return successors, (41), 20 states have call predecessors, (41), 26 states have call successors, (41)
[2024-11-08 16:06:37,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:06:37,819 INFO L93 Difference]: Finished difference Result 520 states and 574 transitions.
[2024-11-08 16:06:37,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states.
[2024-11-08 16:06:37,820 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 5.611111111111111) internal successors, (202), 36 states have internal predecessors, (202), 27 states have call successors, (36), 2 states have call predecessors, (36), 13 states have return successors, (41), 20 states have call predecessors, (41), 26 states have call successors, (41) Word has length 575
[2024-11-08 16:06:37,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:06:37,825 INFO L225 Difference]: With dead ends: 520
[2024-11-08 16:06:37,825 INFO L226 Difference]: Without dead ends: 351
[2024-11-08 16:06:37,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1297 GetRequests, 1233 SyntacticMatches, 11 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 994 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=439, Invalid=2531, Unknown=0, NotChecked=0, Total=2970
[2024-11-08 16:06:37,828 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 262 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-08 16:06:37,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 701 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-08 16:06:37,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states.
[2024-11-08 16:06:37,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 320.
[2024-11-08 16:06:37,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 255 states have (on average 1.0235294117647058) internal successors, (261), 253 states have internal predecessors, (261), 39 states have call successors, (39), 27 states have call predecessors, (39), 25 states have return successors, (42), 39 states have call predecessors, (42), 38 states have call successors, (42)
[2024-11-08 16:06:37,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 342 transitions.
[2024-11-08 16:06:37,890 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 342 transitions. Word has length 575
[2024-11-08 16:06:37,891 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:06:37,891 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 342 transitions.
[2024-11-08 16:06:37,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 5.611111111111111) internal successors, (202), 36 states have internal predecessors, (202), 27 states have call successors, (36), 2 states have call predecessors, (36), 13 states have return successors, (41), 20 states have call predecessors, (41), 26 states have call successors, (41)
[2024-11-08 16:06:37,892 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 342 transitions.
[2024-11-08 16:06:37,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615
[2024-11-08 16:06:37,901 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:06:37,901 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 31, 30, 26, 25, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 11, 9, 6, 6, 1, 1, 1, 1]
[2024-11-08 16:06:37,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0
[2024-11-08 16:06:38,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35
[2024-11-08 16:06:38,102 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:06:38,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:06:38,103 INFO L85 PathProgramCache]: Analyzing trace with hash -2854360, now seen corresponding path program 6 times
[2024-11-08 16:06:38,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:06:38,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039483721]
[2024-11-08 16:06:38,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:06:38,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:06:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 16:06:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151
[2024-11-08 16:06:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249
[2024-11-08 16:06:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409
[2024-11-08 16:06:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:38,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151
[2024-11-08 16:06:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 6659 backedges. 1390 proven. 277 refuted. 0 times theorem prover too weak. 4992 trivial. 0 not checked.
[2024-11-08 16:06:38,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:06:38,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039483721]
[2024-11-08 16:06:38,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039483721] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:06:38,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289478696]
[2024-11-08 16:06:38,996 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2024-11-08 16:06:38,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:06:38,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:06:38,998 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:06:39,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process
[2024-11-08 16:06:39,337 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s)
[2024-11-08 16:06:39,338 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 16:06:39,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-08 16:06:39,347 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:06:39,560 INFO L134 CoverageAnalysis]: Checked inductivity of 6659 backedges. 1296 proven. 107 refuted. 0 times theorem prover too weak. 5256 trivial. 0 not checked.
[2024-11-08 16:06:39,560 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:06:41,102 INFO L134 CoverageAnalysis]: Checked inductivity of 6659 backedges. 1296 proven. 113 refuted. 0 times theorem prover too weak. 5250 trivial. 0 not checked.
[2024-11-08 16:06:41,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289478696] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:06:41,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:06:41,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 15] total 32
[2024-11-08 16:06:41,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537112885]
[2024-11-08 16:06:41,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:06:41,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states
[2024-11-08 16:06:41,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:06:41,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants.
[2024-11-08 16:06:41,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992
[2024-11-08 16:06:41,105 INFO L87 Difference]: Start difference. First operand 320 states and 342 transitions. Second operand has 32 states, 31 states have (on average 5.451612903225806) internal successors, (169), 31 states have internal predecessors, (169), 19 states have call successors, (30), 2 states have call predecessors, (30), 11 states have return successors, (33), 19 states have call predecessors, (33), 18 states have call successors, (33)
[2024-11-08 16:06:41,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:06:41,670 INFO L93 Difference]: Finished difference Result 460 states and 496 transitions.
[2024-11-08 16:06:41,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2024-11-08 16:06:41,670 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.451612903225806) internal successors, (169), 31 states have internal predecessors, (169), 19 states have call successors, (30), 2 states have call predecessors, (30), 11 states have return successors, (33), 19 states have call predecessors, (33), 18 states have call successors, (33) Word has length 614
[2024-11-08 16:06:41,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:06:41,672 INFO L225 Difference]: With dead ends: 460
[2024-11-08 16:06:41,672 INFO L226 Difference]: Without dead ends: 326
[2024-11-08 16:06:41,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1380 GetRequests, 1332 SyntacticMatches, 7 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=271, Invalid=1535, Unknown=0, NotChecked=0, Total=1806
[2024-11-08 16:06:41,673 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 88 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 16:06:41,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 676 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 16:06:41,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states.
[2024-11-08 16:06:41,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 314.
[2024-11-08 16:06:41,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 252 states have (on average 1.0198412698412698) internal successors, (257), 248 states have internal predecessors, (257), 38 states have call successors, (38), 29 states have call predecessors, (38), 23 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37)
[2024-11-08 16:06:41,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 332 transitions.
[2024-11-08 16:06:41,701 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 332 transitions. Word has length 614
[2024-11-08 16:06:41,701 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:06:41,702 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 332 transitions.
[2024-11-08 16:06:41,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.451612903225806) internal successors, (169), 31 states have internal predecessors, (169), 19 states have call successors, (30), 2 states have call predecessors, (30), 11 states have return successors, (33), 19 states have call predecessors, (33), 18 states have call successors, (33)
[2024-11-08 16:06:41,702 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 332 transitions.
[2024-11-08 16:06:41,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654
[2024-11-08 16:06:41,707 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:06:41,708 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 33, 32, 27, 27, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 11, 10, 7, 6, 1, 1, 1, 1]
[2024-11-08 16:06:41,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0
[2024-11-08 16:06:41,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36
[2024-11-08 16:06:41,908 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] ===
[2024-11-08 16:06:41,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:06:41,909 INFO L85 PathProgramCache]: Analyzing trace with hash -330128645, now seen corresponding path program 7 times
[2024-11-08 16:06:41,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:06:41,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472058116]
[2024-11-08 16:06:41,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:06:41,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:06:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:44,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 16:06:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:45,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:45,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:45,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:45,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151
[2024-11-08 16:06:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249
[2024-11-08 16:06:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:46,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409
[2024-11-08 16:06:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2024-11-08 16:06:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151
[2024-11-08 16:06:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-11-08 16:06:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2024-11-08 16:06:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-11-08 16:06:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 16:06:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,549 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1237 proven. 1440 refuted. 0 times theorem prover too weak. 4877 trivial. 0 not checked.
[2024-11-08 16:06:47,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:06:47,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472058116]
[2024-11-08 16:06:47,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472058116] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:06:47,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470601080]
[2024-11-08 16:06:47,550 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2024-11-08 16:06:47,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:06:47,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:06:47,551 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:06:47,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process
[2024-11-08 16:06:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:06:47,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 133 conjuncts are in the unsatisfiable core
[2024-11-08 16:06:47,961 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:06:48,897 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1237 proven. 1440 refuted. 0 times theorem prover too weak. 4877 trivial. 0 not checked.
[2024-11-08 16:06:48,898 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:07:12,552 INFO L134 CoverageAnalysis]: Checked inductivity of 7554 backedges. 1543 proven. 1316 refuted. 0 times theorem prover too weak. 4695 trivial. 0 not checked.
[2024-11-08 16:07:12,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470601080] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:07:12,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:07:12,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 46] total 69
[2024-11-08 16:07:12,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941859390]
[2024-11-08 16:07:12,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:07:12,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 70 states
[2024-11-08 16:07:12,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:07:12,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants.
[2024-11-08 16:07:12,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=569, Invalid=4261, Unknown=0, NotChecked=0, Total=4830
[2024-11-08 16:07:12,557 INFO L87 Difference]: Start difference. First operand 314 states and 332 transitions. Second operand has 70 states, 69 states have (on average 2.6231884057971016) internal successors, (181), 70 states have internal predecessors, (181), 18 states have call successors, (20), 1 states have call predecessors, (20), 20 states have return successors, (48), 48 states have call predecessors, (48), 18 states have call successors, (48)
[2024-11-08 16:07:12,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:07:12,780 INFO L93 Difference]: Finished difference Result 314 states and 332 transitions.
[2024-11-08 16:07:12,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states.
[2024-11-08 16:07:12,780 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 2.6231884057971016) internal successors, (181), 70 states have internal predecessors, (181), 18 states have call successors, (20), 1 states have call predecessors, (20), 20 states have return successors, (48), 48 states have call predecessors, (48), 18 states have call successors, (48) Word has length 653
[2024-11-08 16:07:12,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:07:12,782 INFO L225 Difference]: With dead ends: 314
[2024-11-08 16:07:12,782 INFO L226 Difference]: Without dead ends: 0
[2024-11-08 16:07:12,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1569 GetRequests, 1390 SyntacticMatches, 111 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8705 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=569, Invalid=4261, Unknown=0, NotChecked=0, Total=4830
[2024-11-08 16:07:12,784 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 16:07:12,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 559 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 16:07:12,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-08 16:07:12,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-08 16:07:12,785 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)
[2024-11-08 16:07:12,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-08 16:07:12,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 653
[2024-11-08 16:07:12,785 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:07:12,786 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-08 16:07:12,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 2.6231884057971016) internal successors, (181), 70 states have internal predecessors, (181), 18 states have call successors, (20), 1 states have call predecessors, (20), 20 states have return successors, (48), 48 states have call predecessors, (48), 18 states have call successors, (48)
[2024-11-08 16:07:12,786 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-08 16:07:12,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-08 16:07:12,789 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining)
[2024-11-08 16:07:12,790 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining)
[2024-11-08 16:07:12,790 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining)
[2024-11-08 16:07:12,790 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining)
[2024-11-08 16:07:12,790 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining)
[2024-11-08 16:07:12,790 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining)
[2024-11-08 16:07:12,790 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining)
[2024-11-08 16:07:12,791 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining)
[2024-11-08 16:07:12,791 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining)
[2024-11-08 16:07:12,791 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining)
[2024-11-08 16:07:12,791 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining)
[2024-11-08 16:07:12,791 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fibo1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining)
[2024-11-08 16:07:12,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0
[2024-11-08 16:07:12,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37
[2024-11-08 16:07:12,995 INFO L407 BasicCegarLoop]: Path program histogram: [7, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:07:12,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-08 16:07:21,198 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 16:07:21,240 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
[2024-11-08 16:07:21,256 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
[2024-11-08 16:07:21,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:07:21 BoogieIcfgContainer
[2024-11-08 16:07:21,258 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 16:07:21,258 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 16:07:21,258 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 16:07:21,259 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 16:07:21,259 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:05:23" (3/4) ...
[2024-11-08 16:07:21,262 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-08 16:07:21,267 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo2
[2024-11-08 16:07:21,267 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo1
[2024-11-08 16:07:21,271 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-11-08 16:07:21,271 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-08 16:07:21,272 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-08 16:07:21,272 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-08 16:07:21,363 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/witness.graphml
[2024-11-08 16:07:21,364 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/witness.yml
[2024-11-08 16:07:21,364 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 16:07:21,365 INFO L158 Benchmark]: Toolchain (without parser) took 119170.47ms. Allocated memory was 140.5MB in the beginning and 989.9MB in the end (delta: 849.3MB). Free memory was 106.1MB in the beginning and 401.1MB in the end (delta: -295.0MB). Peak memory consumption was 557.5MB. Max. memory is 16.1GB.
[2024-11-08 16:07:21,365 INFO L158 Benchmark]: CDTParser took 1.55ms. Allocated memory is still 140.5MB. Free memory is still 112.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 16:07:21,365 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.59ms. Allocated memory is still 140.5MB. Free memory was 106.1MB in the beginning and 94.2MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-08 16:07:21,365 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.30ms. Allocated memory is still 140.5MB. Free memory was 94.2MB in the beginning and 92.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 16:07:21,366 INFO L158 Benchmark]: Boogie Preprocessor took 101.53ms. Allocated memory is still 140.5MB. Free memory was 92.6MB in the beginning and 91.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 16:07:21,366 INFO L158 Benchmark]: RCFGBuilder took 446.81ms. Allocated memory is still 140.5MB. Free memory was 91.0MB in the beginning and 79.0MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-11-08 16:07:21,366 INFO L158 Benchmark]: TraceAbstraction took 118117.34ms. Allocated memory was 140.5MB in the beginning and 989.9MB in the end (delta: 849.3MB). Free memory was 78.4MB in the beginning and 405.3MB in the end (delta: -326.9MB). Peak memory consumption was 574.8MB. Max. memory is 16.1GB.
[2024-11-08 16:07:21,366 INFO L158 Benchmark]: Witness Printer took 105.92ms. Allocated memory is still 989.9MB. Free memory was 405.3MB in the beginning and 401.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-08 16:07:21,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.55ms. Allocated memory is still 140.5MB. Free memory is still 112.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 329.59ms. Allocated memory is still 140.5MB. Free memory was 106.1MB in the beginning and 94.2MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 59.30ms. Allocated memory is still 140.5MB. Free memory was 94.2MB in the beginning and 92.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 101.53ms. Allocated memory is still 140.5MB. Free memory was 92.6MB in the beginning and 91.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 446.81ms. Allocated memory is still 140.5MB. Free memory was 91.0MB in the beginning and 79.0MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 118117.34ms. Allocated memory was 140.5MB in the beginning and 989.9MB in the end (delta: 849.3MB). Free memory was 78.4MB in the beginning and 405.3MB in the end (delta: -326.9MB). Peak memory consumption was 574.8MB. Max. memory is 16.1GB.
* Witness Printer took 105.92ms. Allocated memory is still 989.9MB. Free memory was 405.3MB in the beginning and 401.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 25]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 25]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 25]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 25]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 25]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 25]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 15]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 15]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 15]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 15]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 15]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 15]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 53 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 109.8s, OverallIterations: 38, TraceHistogramMax: 34, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 17.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3777 SdHoareTripleChecker+Valid, 11.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3661 mSDsluCounter, 15324 SdHoareTripleChecker+Invalid, 9.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13688 mSDsCounter, 1179 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16308 IncrementalHoareTripleChecker+Invalid, 17487 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1179 mSolverCounterUnsat, 1636 mSDtfsCounter, 16308 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11873 GetRequests, 10525 SyntacticMatches, 371 SemanticMatches, 977 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24793 ImplicationChecksByTransitivity, 18.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=658occurred in iteration=28, InterpolantAutomatonStates: 712, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 38 MinimizatonAttempts, 1299 StatesRemovedByMinimization, 37 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 80.3s InterpolantComputationTime, 10658 NumberOfCodeBlocks, 9768 NumberOfCodeBlocksAsserted, 116 NumberOfCheckSat, 15462 ConstructedInterpolants, 0 QuantifiedInterpolants, 28820 SizeOfPredicates, 84 NumberOfNonLiveVariables, 8323 ConjunctsInSsa, 579 ConjunctsInUnsatCore, 87 InterpolantComputations, 16 PerfectInterpolantSequences, 85041/97621 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
12 specifications checked. All of them hold
- ProcedureContractResult [Line: 19]: Procedure Contract for fibo2
Derived contract for procedure fibo2. Requires: (n <= 7) Ensures: ((((n <= 7) && (((n < 3) || (4 < n)) || (1 < \result))) && ((((\result == 0) && (n <= 0)) || (2 < n)) || ((\result == 1) && (1 <= n)))) && ((5 != n) || (1 < \result)))
- ProcedureContractResult [Line: 9]: Procedure Contract for fibo1
Derived contract for procedure fibo1. Requires: ((n < 7) || (n == 8)) Ensures: (((((((3 == n) && (\result <= 2)) || (3 < n)) || (\result == 1)) || (n < 1)) && ((n < 7) || (n == 8))) && (((\result == 0) || (n == 1)) || (2 < n)))
RESULT: Ultimate proved your program to be correct!
[2024-11-08 16:07:21,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee349bb3-3e22-4a4d-a1cf-79ffd7530555/bin/uautomizer-verify-jihMAELWvX/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