./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_10-2.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for termination
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_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/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_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_10-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a6546395432109233bf3e1991428a566548dd822bb23ca198622322bf4db5a8a
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:13:05,559 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:13:05,661 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-32bit-Automizer_Default.epf
[2024-11-08 17:13:05,669 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:13:05,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:13:05,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:13:05,710 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:13:05,711 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:13:05,711 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:13:05,712 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:13:05,712 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:13:05,713 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:13:05,713 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:13:05,714 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2024-11-08 17:13:05,715 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2024-11-08 17:13:05,715 INFO L153 SettingsManager]: * Use old map elimination=false
[2024-11-08 17:13:05,717 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false
[2024-11-08 17:13:05,720 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true
[2024-11-08 17:13:05,721 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2024-11-08 17:13:05,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:13:05,721 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2024-11-08 17:13:05,722 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 17:13:05,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 17:13:05,722 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 17:13:05,723 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:13:05,723 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2024-11-08 17:13:05,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2024-11-08 17:13:05,723 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2024-11-08 17:13:05,724 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:13:05,724 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 17:13:05,724 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 17:13:05,724 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 17:13:05,725 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false
[2024-11-08 17:13:05,725 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:13:05,725 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:13:05,725 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:13:05,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:13:05,726 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 17:13:05,726 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2024-11-08 17:13:05,727 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR
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_26b2a0a9-66d0-4d28-962b-2480ce518f6f/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6546395432109233bf3e1991428a566548dd822bb23ca198622322bf4db5a8a
[2024-11-08 17:13:06,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:13:06,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:13:06,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:13:06,094 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:13:06,095 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:13:06,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/recursive-simple/fibo_10-2.c
Unable to find full path for "g++"
[2024-11-08 17:13:08,103 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:13:08,295 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:13:08,295 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/sv-benchmarks/c/recursive-simple/fibo_10-2.c
[2024-11-08 17:13:08,302 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/data/b744593f1/e488e87e443c4ee1b1830baf2c039b16/FLAG0b67d2fa6
[2024-11-08 17:13:08,314 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/data/b744593f1/e488e87e443c4ee1b1830baf2c039b16
[2024-11-08 17:13:08,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:13:08,318 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:13:08,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:13:08,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:13:08,325 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:13:08,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:13:08" (1/1) ...
[2024-11-08 17:13:08,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211fe2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08, skipping insertion in model container
[2024-11-08 17:13:08,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:13:08" (1/1) ...
[2024-11-08 17:13:08,344 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:13:08,524 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:13:08,542 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:13:08,561 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:13:08,582 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:13:08,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08 WrapperNode
[2024-11-08 17:13:08,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:13:08,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:13:08,585 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:13:08,585 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:13:08,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08" (1/1) ...
[2024-11-08 17:13:08,601 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08" (1/1) ...
[2024-11-08 17:13:08,618 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20
[2024-11-08 17:13:08,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:13:08,620 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:13:08,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:13:08,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:13:08,632 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08" (1/1) ...
[2024-11-08 17:13:08,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08" (1/1) ...
[2024-11-08 17:13:08,633 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08" (1/1) ...
[2024-11-08 17:13:08,645 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 17:13:08,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08" (1/1) ...
[2024-11-08 17:13:08,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08" (1/1) ...
[2024-11-08 17:13:08,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08" (1/1) ...
[2024-11-08 17:13:08,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08" (1/1) ...
[2024-11-08 17:13:08,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08" (1/1) ...
[2024-11-08 17:13:08,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08" (1/1) ...
[2024-11-08 17:13:08,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:13:08,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:13:08,654 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:13:08,654 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:13:08,655 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08" (1/1) ...
[2024-11-08 17:13:08,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:08,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:08,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:08,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:13:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:13:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:13:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:13:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 17:13:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure fibo
[2024-11-08 17:13:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo
[2024-11-08 17:13:08,768 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:13:08,770 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:13:08,877 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live.
[2024-11-08 17:13:08,878 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:13:08,891 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:13:08,891 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 17:13:08,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:08 BoogieIcfgContainer
[2024-11-08 17:13:08,892 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:13:08,893 INFO L112 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2024-11-08 17:13:08,893 INFO L270 PluginConnector]: Initializing BuchiAutomizer...
[2024-11-08 17:13:08,896 INFO L274 PluginConnector]: BuchiAutomizer initialized
[2024-11-08 17:13:08,897 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-11-08 17:13:08,897 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.11 05:13:08" (1/3) ...
[2024-11-08 17:13:08,898 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23e0263e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 05:13:08, skipping insertion in model container
[2024-11-08 17:13:08,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-11-08 17:13:08,898 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:08" (2/3) ...
[2024-11-08 17:13:08,899 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23e0263e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 05:13:08, skipping insertion in model container
[2024-11-08 17:13:08,899 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-11-08 17:13:08,899 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:08" (3/3) ...
[2024-11-08 17:13:08,900 INFO L332 chiAutomizerObserver]: Analyzing ICFG fibo_10-2.c
[2024-11-08 17:13:08,961 INFO L300 stractBuchiCegarLoop]: Interprodecural is true
[2024-11-08 17:13:08,961 INFO L301 stractBuchiCegarLoop]: Hoare is None
[2024-11-08 17:13:08,961 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2024-11-08 17:13:08,962 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2024-11-08 17:13:08,962 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2024-11-08 17:13:08,962 INFO L305 stractBuchiCegarLoop]: Difference is false
[2024-11-08 17:13:08,962 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2024-11-08 17:13:08,962 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2024-11-08 17:13:08,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-08 17:13:08,988 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-08 17:13:08,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-08 17:13:08,988 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-08 17:13:08,994 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2024-11-08 17:13:08,994 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2024-11-08 17:13:08,994 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============
[2024-11-08 17:13:08,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-08 17:13:08,997 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-08 17:13:08,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-08 17:13:08,997 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-08 17:13:08,998 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2024-11-08 17:13:08,998 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2024-11-08 17:13:09,006 INFO L745 eck$LassoCheckResult]: Stem: 17#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 10; 4#L27true call main_#t~ret6#1 := fibo(main_~x~0#1);< 11#$Ultimate##0true
[2024-11-08 17:13:09,006 INFO L747 eck$LassoCheckResult]: Loop: 11#$Ultimate##0true ~n := #in~n; 5#L8true assume !(~n < 1); 7#L10true assume !(1 == ~n); 13#L13true call #t~ret4 := fibo(~n - 1);< 11#$Ultimate##0true
[2024-11-08 17:13:09,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:09,012 INFO L85 PathProgramCache]: Analyzing trace with hash 29885, now seen corresponding path program 1 times
[2024-11-08 17:13:09,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:09,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411632418]
[2024-11-08 17:13:09,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:09,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:13:09,119 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 17:13:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:13:09,154 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 17:13:09,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:09,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1512524, now seen corresponding path program 1 times
[2024-11-08 17:13:09,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:09,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596590520]
[2024-11-08 17:13:09,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:09,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:13:09,173 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 17:13:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:13:09,180 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 17:13:09,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:09,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1830210312, now seen corresponding path program 1 times
[2024-11-08 17:13:09,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:09,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449003555]
[2024-11-08 17:13:09,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:09,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:13:09,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 17:13:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:13:09,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 17:13:09,370 INFO L204 LassoAnalysis]: Preferences:
[2024-11-08 17:13:09,371 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-08 17:13:09,371 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-08 17:13:09,371 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-08 17:13:09,371 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-08 17:13:09,372 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:09,372 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-08 17:13:09,372 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-08 17:13:09,372 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration1_Loop
[2024-11-08 17:13:09,372 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-08 17:13:09,373 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-08 17:13:09,399 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:09,420 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:09,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:09,428 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:09,446 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:09,537 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-08 17:13:09,538 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-08 17:13:09,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:09,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:09,544 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:09,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process
[2024-11-08 17:13:09,548 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 17:13:09,549 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:09,574 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 17:13:09,575 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 17:13:09,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0
[2024-11-08 17:13:09,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:09,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:09,604 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:09,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process
[2024-11-08 17:13:09,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 17:13:09,609 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:09,632 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 17:13:09,632 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#res=0} Honda state: {fibo_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 17:13:09,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0
[2024-11-08 17:13:09,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:09,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:09,658 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:09,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process
[2024-11-08 17:13:09,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 17:13:09,663 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:09,681 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 17:13:09,682 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_~n=0} Honda state: {fibo_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 17:13:09,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0
[2024-11-08 17:13:09,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:09,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:09,708 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:09,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process
[2024-11-08 17:13:09,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 17:13:09,712 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:09,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:09,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:09,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:09,754 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:09,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process
[2024-11-08 17:13:09,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-08 17:13:09,758 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:09,859 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-11-08 17:13:09,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:09,863 INFO L204 LassoAnalysis]: Preferences:
[2024-11-08 17:13:09,864 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-08 17:13:09,864 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-08 17:13:09,864 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-08 17:13:09,864 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-11-08 17:13:09,864 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:09,865 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-08 17:13:09,865 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-08 17:13:09,865 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration1_Loop
[2024-11-08 17:13:09,865 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-08 17:13:09,865 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-08 17:13:09,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:09,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:09,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:09,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:09,893 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:09,971 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-08 17:13:09,978 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-11-08 17:13:09,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:09,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:09,984 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:09,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process
[2024-11-08 17:13:09,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 17:13:10,006 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 17:13:10,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 17:13:10,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 17:13:10,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 17:13:10,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 17:13:10,010 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 17:13:10,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 17:13:10,018 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 17:13:10,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:10,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:10,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:10,034 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:10,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process
[2024-11-08 17:13:10,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 17:13:10,048 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 17:13:10,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 17:13:10,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 17:13:10,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 17:13:10,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 17:13:10,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 17:13:10,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 17:13:10,054 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 17:13:10,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0
[2024-11-08 17:13:10,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:10,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:10,077 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:10,079 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 17:13:10,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process
[2024-11-08 17:13:10,095 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 17:13:10,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 17:13:10,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 17:13:10,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 17:13:10,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 17:13:10,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 17:13:10,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 17:13:10,100 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 17:13:10,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0
[2024-11-08 17:13:10,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:10,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:10,122 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:10,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process
[2024-11-08 17:13:10,126 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 17:13:10,141 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 17:13:10,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 17:13:10,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 17:13:10,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 17:13:10,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 17:13:10,143 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 17:13:10,143 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 17:13:10,150 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-11-08 17:13:10,155 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2024-11-08 17:13:10,155 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2024-11-08 17:13:10,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:10,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:10,164 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:10,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process
[2024-11-08 17:13:10,167 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-11-08 17:13:10,168 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-11-08 17:13:10,168 INFO L474 LassoAnalysis]: Proved termination.
[2024-11-08 17:13:10,169 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fibo_#in~n) = 1*fibo_#in~n
Supporting invariants []
[2024-11-08 17:13:10,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0
[2024-11-08 17:13:10,202 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-11-08 17:13:10,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:10,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:10,278 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:10,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:10,313 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:10,378 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 17:13:10,422 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates
[2024-11-08 17:13:10,424 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 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 17:13:10,548 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 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) Result 41 states and 54 transitions. Complement of second has 16 states.
[2024-11-08 17:13:10,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states
[2024-11-08 17:13:10,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 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 17:13:10,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions.
[2024-11-08 17:13:10,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 3 letters. Loop has 4 letters.
[2024-11-08 17:13:10,564 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:10,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 7 letters. Loop has 4 letters.
[2024-11-08 17:13:10,564 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:10,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 3 letters. Loop has 8 letters.
[2024-11-08 17:13:10,565 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:10,565 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 54 transitions.
[2024-11-08 17:13:10,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-08 17:13:10,579 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 23 states and 31 transitions.
[2024-11-08 17:13:10,582 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15
[2024-11-08 17:13:10,583 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16
[2024-11-08 17:13:10,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions.
[2024-11-08 17:13:10,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-08 17:13:10,585 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 31 transitions.
[2024-11-08 17:13:10,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions.
[2024-11-08 17:13:10,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20.
[2024-11-08 17:13:10,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4)
[2024-11-08 17:13:10,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions.
[2024-11-08 17:13:10,612 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions.
[2024-11-08 17:13:10,612 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 26 transitions.
[2024-11-08 17:13:10,612 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============
[2024-11-08 17:13:10,613 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions.
[2024-11-08 17:13:10,614 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-08 17:13:10,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-08 17:13:10,614 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-08 17:13:10,615 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:10,615 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:10,615 INFO L745 eck$LassoCheckResult]: Stem: 135#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3); 136#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 10; 121#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 120#$Ultimate##0 ~n := #in~n; 122#L8 assume !(~n < 1); 134#L10 assume !(1 == ~n); 124#L13 call #t~ret4 := fibo(~n - 1);< 123#$Ultimate##0 ~n := #in~n; 125#L8 assume ~n < 1;#res := 0; 131#fiboFINAL assume true; 132#fiboEXIT >#35#return; 127#L13-1
[2024-11-08 17:13:10,616 INFO L747 eck$LassoCheckResult]: Loop: 127#L13-1 call #t~ret5 := fibo(~n - 2);< 128#$Ultimate##0 ~n := #in~n; 138#L8 assume !(~n < 1); 139#L10 assume !(1 == ~n); 126#L13 call #t~ret4 := fibo(~n - 1);< 128#$Ultimate##0 ~n := #in~n; 138#L8 assume ~n < 1;#res := 0; 130#fiboFINAL assume true; 137#fiboEXIT >#35#return; 127#L13-1
[2024-11-08 17:13:10,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:10,616 INFO L85 PathProgramCache]: Analyzing trace with hash 523436175, now seen corresponding path program 1 times
[2024-11-08 17:13:10,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:10,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022303927]
[2024-11-08 17:13:10,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:10,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:10,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2024-11-08 17:13:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:13:10,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:13:10,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022303927]
[2024-11-08 17:13:10,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022303927] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:10,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:10,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:13:10,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291675481]
[2024-11-08 17:13:10,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:10,776 INFO L750 eck$LassoCheckResult]: stem already infeasible
[2024-11-08 17:13:10,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:10,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1950983701, now seen corresponding path program 1 times
[2024-11-08 17:13:10,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:10,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211249017]
[2024-11-08 17:13:10,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:10,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:10,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2024-11-08 17:13:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:10,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:13:10,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:13:10,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211249017]
[2024-11-08 17:13:10,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211249017] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:13:10,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:13:10,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:13:10,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709384201]
[2024-11-08 17:13:10,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:13:10,915 INFO L762 eck$LassoCheckResult]: loop already infeasible
[2024-11-08 17:13:10,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:13:10,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:13:10,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:13:10,919 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 8 Second operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 17:13:11,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:11,016 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions.
[2024-11-08 17:13:11,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions.
[2024-11-08 17:13:11,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-08 17:13:11,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 24 states and 30 transitions.
[2024-11-08 17:13:11,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20
[2024-11-08 17:13:11,020 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20
[2024-11-08 17:13:11,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions.
[2024-11-08 17:13:11,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-08 17:13:11,021 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions.
[2024-11-08 17:13:11,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions.
[2024-11-08 17:13:11,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24.
[2024-11-08 17:13:11,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 17:13:11,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions.
[2024-11-08 17:13:11,025 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions.
[2024-11-08 17:13:11,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:13:11,026 INFO L425 stractBuchiCegarLoop]: Abstraction has 24 states and 30 transitions.
[2024-11-08 17:13:11,027 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============
[2024-11-08 17:13:11,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 30 transitions.
[2024-11-08 17:13:11,028 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-08 17:13:11,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-08 17:13:11,028 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-08 17:13:11,031 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:11,032 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:11,032 INFO L745 eck$LassoCheckResult]: Stem: 205#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3); 206#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 10; 199#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 202#$Ultimate##0 ~n := #in~n; 197#L8 assume !(~n < 1); 208#L10 assume !(1 == ~n); 196#L13 call #t~ret4 := fibo(~n - 1);< 195#$Ultimate##0 ~n := #in~n; 198#L8 assume !(~n < 1); 214#L10 assume 1 == ~n;#res := 1; 213#fiboFINAL assume true; 211#fiboEXIT >#35#return; 192#L13-1
[2024-11-08 17:13:11,032 INFO L747 eck$LassoCheckResult]: Loop: 192#L13-1 call #t~ret5 := fibo(~n - 2);< 191#$Ultimate##0 ~n := #in~n; 194#L8 assume !(~n < 1); 207#L10 assume !(1 == ~n); 193#L13 call #t~ret4 := fibo(~n - 1);< 191#$Ultimate##0 ~n := #in~n; 194#L8 assume !(~n < 1); 207#L10 assume 1 == ~n;#res := 1; 209#fiboFINAL assume true; 210#fiboEXIT >#35#return; 192#L13-1
[2024-11-08 17:13:11,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:11,033 INFO L85 PathProgramCache]: Analyzing trace with hash -953322862, now seen corresponding path program 1 times
[2024-11-08 17:13:11,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:11,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984273641]
[2024-11-08 17:13:11,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:11,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:11,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2024-11-08 17:13:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:11,201 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:11,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:13:11,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984273641]
[2024-11-08 17:13:11,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984273641] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:13:11,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647343116]
[2024-11-08 17:13:11,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:11,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:11,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:11,209 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:11,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-08 17:13:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:11,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:11,264 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:11,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:11,322 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:13:11,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:11,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647343116] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:13:11,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:13:11,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11
[2024-11-08 17:13:11,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336746458]
[2024-11-08 17:13:11,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:13:11,488 INFO L750 eck$LassoCheckResult]: stem already infeasible
[2024-11-08 17:13:11,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:11,489 INFO L85 PathProgramCache]: Analyzing trace with hash 350977484, now seen corresponding path program 1 times
[2024-11-08 17:13:11,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:11,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41209729]
[2024-11-08 17:13:11,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:11,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:13:11,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 17:13:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:13:11,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 17:13:11,663 INFO L204 LassoAnalysis]: Preferences:
[2024-11-08 17:13:11,663 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-08 17:13:11,663 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-08 17:13:11,663 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-08 17:13:11,663 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-08 17:13:11,663 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:11,663 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-08 17:13:11,663 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-08 17:13:11,663 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration3_Loop
[2024-11-08 17:13:11,663 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-08 17:13:11,664 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-08 17:13:11,664 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:11,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:11,671 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:11,675 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:11,682 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:11,752 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-08 17:13:11,753 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-08 17:13:11,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:11,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:11,757 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:11,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process
[2024-11-08 17:13:11,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 17:13:11,763 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:11,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:11,789 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 17:13:11,790 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#in~n=2} Honda state: {fibo_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 17:13:11,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:11,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:11,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:11,805 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:11,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process
[2024-11-08 17:13:11,808 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 17:13:11,809 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:11,826 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 17:13:11,826 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#res=0} Honda state: {fibo_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 17:13:11,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0
[2024-11-08 17:13:11,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:11,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:11,855 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:11,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process
[2024-11-08 17:13:11,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 17:13:11,859 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:11,878 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 17:13:11,881 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=1} Honda state: {fibo_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 17:13:11,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0
[2024-11-08 17:13:11,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:11,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:11,909 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:11,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process
[2024-11-08 17:13:11,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 17:13:11,915 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:11,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0
[2024-11-08 17:13:11,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:11,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:11,957 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:11,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process
[2024-11-08 17:13:11,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-08 17:13:11,962 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:11,983 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-11-08 17:13:12,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:12,003 INFO L204 LassoAnalysis]: Preferences:
[2024-11-08 17:13:12,003 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-08 17:13:12,003 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-08 17:13:12,003 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-08 17:13:12,003 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-11-08 17:13:12,003 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:12,003 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-08 17:13:12,003 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-08 17:13:12,003 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration3_Loop
[2024-11-08 17:13:12,003 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-08 17:13:12,003 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-08 17:13:12,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:12,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:12,015 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:12,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:12,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:12,080 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-08 17:13:12,080 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-11-08 17:13:12,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:12,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:12,083 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:12,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process
[2024-11-08 17:13:12,086 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 17:13:12,102 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 17:13:12,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 17:13:12,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 17:13:12,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 17:13:12,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 17:13:12,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 17:13:12,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 17:13:12,109 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 17:13:12,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0
[2024-11-08 17:13:12,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:12,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:12,131 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:12,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process
[2024-11-08 17:13:12,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 17:13:12,148 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 17:13:12,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 17:13:12,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 17:13:12,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 17:13:12,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 17:13:12,149 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 17:13:12,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 17:13:12,152 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 17:13:12,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:12,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:12,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:12,171 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:12,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process
[2024-11-08 17:13:12,173 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 17:13:12,185 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 17:13:12,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 17:13:12,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 17:13:12,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 17:13:12,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 17:13:12,186 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 17:13:12,186 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 17:13:12,190 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 17:13:12,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0
[2024-11-08 17:13:12,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:12,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:12,207 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:12,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process
[2024-11-08 17:13:12,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 17:13:12,222 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 17:13:12,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 17:13:12,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 17:13:12,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 17:13:12,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 17:13:12,223 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 17:13:12,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 17:13:12,227 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 17:13:12,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0
[2024-11-08 17:13:12,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:12,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:12,250 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:12,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process
[2024-11-08 17:13:12,253 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 17:13:12,268 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 17:13:12,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 17:13:12,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 17:13:12,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 17:13:12,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 17:13:12,270 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 17:13:12,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 17:13:12,273 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-11-08 17:13:12,277 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2024-11-08 17:13:12,278 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2024-11-08 17:13:12,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:12,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:12,280 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:12,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process
[2024-11-08 17:13:12,285 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-11-08 17:13:12,285 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-11-08 17:13:12,285 INFO L474 LassoAnalysis]: Proved termination.
[2024-11-08 17:13:12,285 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fibo_~n) = 1*fibo_~n
Supporting invariants []
[2024-11-08 17:13:12,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0
[2024-11-08 17:13:12,305 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-11-08 17:13:12,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:12,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:12,357 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:12,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:12,485 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:12,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:13:12,605 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates
[2024-11-08 17:13:12,605 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 8 Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:13:12,951 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 8. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 128 states and 178 transitions. Complement of second has 40 states.
[2024-11-08 17:13:12,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states
[2024-11-08 17:13:12,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:13:12,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 40 transitions.
[2024-11-08 17:13:12,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 12 letters. Loop has 10 letters.
[2024-11-08 17:13:12,955 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:12,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 22 letters. Loop has 10 letters.
[2024-11-08 17:13:12,956 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:12,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 12 letters. Loop has 20 letters.
[2024-11-08 17:13:12,957 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:12,957 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 178 transitions.
[2024-11-08 17:13:12,963 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10
[2024-11-08 17:13:12,968 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 105 states and 151 transitions.
[2024-11-08 17:13:12,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62
[2024-11-08 17:13:12,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66
[2024-11-08 17:13:12,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 151 transitions.
[2024-11-08 17:13:12,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-08 17:13:12,969 INFO L218 hiAutomatonCegarLoop]: Abstraction has 105 states and 151 transitions.
[2024-11-08 17:13:12,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 151 transitions.
[2024-11-08 17:13:12,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 94.
[2024-11-08 17:13:12,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 64 states have internal predecessors, (71), 21 states have call successors, (22), 11 states have call predecessors, (22), 15 states have return successors, (35), 18 states have call predecessors, (35), 19 states have call successors, (35)
[2024-11-08 17:13:12,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 128 transitions.
[2024-11-08 17:13:12,996 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 128 transitions.
[2024-11-08 17:13:12,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:13:12,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 17:13:12,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2024-11-08 17:13:12,997 INFO L87 Difference]: Start difference. First operand 94 states and 128 transitions. Second operand has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 17:13:13,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:13,206 INFO L93 Difference]: Finished difference Result 119 states and 163 transitions.
[2024-11-08 17:13:13,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 163 transitions.
[2024-11-08 17:13:13,215 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10
[2024-11-08 17:13:13,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 114 states and 158 transitions.
[2024-11-08 17:13:13,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73
[2024-11-08 17:13:13,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73
[2024-11-08 17:13:13,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 158 transitions.
[2024-11-08 17:13:13,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-08 17:13:13,220 INFO L218 hiAutomatonCegarLoop]: Abstraction has 114 states and 158 transitions.
[2024-11-08 17:13:13,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 158 transitions.
[2024-11-08 17:13:13,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 106.
[2024-11-08 17:13:13,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 66 states have (on average 1.196969696969697) internal successors, (79), 72 states have internal predecessors, (79), 24 states have call successors, (25), 13 states have call predecessors, (25), 16 states have return successors, (39), 20 states have call predecessors, (39), 22 states have call successors, (39)
[2024-11-08 17:13:13,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 143 transitions.
[2024-11-08 17:13:13,248 INFO L240 hiAutomatonCegarLoop]: Abstraction has 106 states and 143 transitions.
[2024-11-08 17:13:13,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 17:13:13,250 INFO L425 stractBuchiCegarLoop]: Abstraction has 106 states and 143 transitions.
[2024-11-08 17:13:13,250 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============
[2024-11-08 17:13:13,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states and 143 transitions.
[2024-11-08 17:13:13,255 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10
[2024-11-08 17:13:13,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-08 17:13:13,256 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-08 17:13:13,257 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:13,257 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 3, 2, 2, 2, 2, 2, 1, 1]
[2024-11-08 17:13:13,258 INFO L745 eck$LassoCheckResult]: Stem: 806#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3); 807#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 10; 792#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 793#$Ultimate##0 ~n := #in~n; 809#L8 assume !(~n < 1); 810#L10 assume !(1 == ~n); 780#L13 call #t~ret4 := fibo(~n - 1);< 779#$Ultimate##0 ~n := #in~n; 781#L8 assume !(~n < 1); 816#L10 assume !(1 == ~n); 790#L13 call #t~ret4 := fibo(~n - 1);< 791#$Ultimate##0 ~n := #in~n; 838#L8 assume !(~n < 1); 836#L10 assume !(1 == ~n); 832#L13 call #t~ret4 := fibo(~n - 1);< 791#$Ultimate##0 ~n := #in~n; 838#L8 assume !(~n < 1); 836#L10 assume !(1 == ~n); 832#L13 call #t~ret4 := fibo(~n - 1);< 791#$Ultimate##0 ~n := #in~n; 839#L8 assume !(~n < 1); 837#L10 assume 1 == ~n;#res := 1; 835#fiboFINAL assume true; 834#fiboEXIT >#35#return; 817#L13-1 call #t~ret5 := fibo(~n - 2);< 833#$Ultimate##0 ~n := #in~n; 879#L8 assume ~n < 1;#res := 0; 878#fiboFINAL assume true; 877#fiboEXIT >#37#return; 875#L13-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 872#fiboFINAL assume true; 864#fiboEXIT >#35#return; 813#L13-1
[2024-11-08 17:13:13,262 INFO L747 eck$LassoCheckResult]: Loop: 813#L13-1 call #t~ret5 := fibo(~n - 2);< 789#$Ultimate##0 ~n := #in~n; 869#L8 assume !(~n < 1); 811#L10 assume !(1 == ~n); 814#L13 call #t~ret4 := fibo(~n - 1);< 789#$Ultimate##0 ~n := #in~n; 869#L8 assume !(~n < 1); 811#L10 assume !(1 == ~n); 814#L13 call #t~ret4 := fibo(~n - 1);< 789#$Ultimate##0 ~n := #in~n; 869#L8 assume !(~n < 1); 811#L10 assume 1 == ~n;#res := 1; 815#fiboFINAL assume true; 861#fiboEXIT >#35#return; 813#L13-1 call #t~ret5 := fibo(~n - 2);< 789#$Ultimate##0 ~n := #in~n; 869#L8 assume !(~n < 1); 811#L10 assume 1 == ~n;#res := 1; 815#fiboFINAL assume true; 861#fiboEXIT >#37#return; 862#L13-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 871#fiboFINAL assume true; 865#fiboEXIT >#35#return; 813#L13-1
[2024-11-08 17:13:13,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:13,262 INFO L85 PathProgramCache]: Analyzing trace with hash 870102534, now seen corresponding path program 1 times
[2024-11-08 17:13:13,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:13,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122306468]
[2024-11-08 17:13:13,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:13,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:13,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 17:13:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:13,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-11-08 17:13:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:13,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2024-11-08 17:13:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:13,672 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 17:13:13,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:13:13,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122306468]
[2024-11-08 17:13:13,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122306468] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:13:13,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182120963]
[2024-11-08 17:13:13,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:13,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:13,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:13,675 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:13,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2024-11-08 17:13:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:13,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:13,729 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 17:13:13,818 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:13:13,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0
[2024-11-08 17:13:14,221 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 47 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:13:14,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182120963] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:13:14,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:13:14,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 22
[2024-11-08 17:13:14,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443262555]
[2024-11-08 17:13:14,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:13:14,223 INFO L750 eck$LassoCheckResult]: stem already infeasible
[2024-11-08 17:13:14,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:14,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1138642743, now seen corresponding path program 1 times
[2024-11-08 17:13:14,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:14,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284362935]
[2024-11-08 17:13:14,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:14,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:14,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2024-11-08 17:13:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:14,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-11-08 17:13:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:14,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2024-11-08 17:13:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:14,363 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-11-08 17:13:14,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:13:14,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284362935]
[2024-11-08 17:13:14,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284362935] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:13:14,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680713597]
[2024-11-08 17:13:14,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:14,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:14,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:14,367 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:14,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2024-11-08 17:13:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:14,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:14,419 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:14,464 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-11-08 17:13:14,464 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:13:14,638 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-11-08 17:13:14,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680713597] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:13:14,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:13:14,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11
[2024-11-08 17:13:14,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571846925]
[2024-11-08 17:13:14,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:13:14,639 INFO L762 eck$LassoCheckResult]: loop already infeasible
[2024-11-08 17:13:14,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:13:14,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 17:13:14,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110
[2024-11-08 17:13:14,644 INFO L87 Difference]: Start difference. First operand 106 states and 143 transitions. cyclomatic complexity: 42 Second operand has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 17:13:14,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:14,756 INFO L93 Difference]: Finished difference Result 58 states and 76 transitions.
[2024-11-08 17:13:14,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 76 transitions.
[2024-11-08 17:13:14,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-08 17:13:14,759 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 54 states and 70 transitions.
[2024-11-08 17:13:14,759 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43
[2024-11-08 17:13:14,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43
[2024-11-08 17:13:14,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 70 transitions.
[2024-11-08 17:13:14,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-08 17:13:14,760 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 70 transitions.
[2024-11-08 17:13:14,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 70 transitions.
[2024-11-08 17:13:14,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54.
[2024-11-08 17:13:14,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 37 states have internal predecessors, (38), 11 states have call successors, (11), 7 states have call predecessors, (11), 8 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21)
[2024-11-08 17:13:14,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions.
[2024-11-08 17:13:14,765 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 70 transitions.
[2024-11-08 17:13:14,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 17:13:14,766 INFO L425 stractBuchiCegarLoop]: Abstraction has 54 states and 70 transitions.
[2024-11-08 17:13:14,766 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============
[2024-11-08 17:13:14,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 70 transitions.
[2024-11-08 17:13:14,767 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-08 17:13:14,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-08 17:13:14,768 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-08 17:13:14,769 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:14,769 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1]
[2024-11-08 17:13:14,769 INFO L745 eck$LassoCheckResult]: Stem: 1377#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3); 1378#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 10; 1371#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 1372#$Ultimate##0 ~n := #in~n; 1387#L8 assume !(~n < 1); 1386#L10 assume !(1 == ~n); 1359#L13 call #t~ret4 := fibo(~n - 1);< 1358#$Ultimate##0 ~n := #in~n; 1360#L8 assume !(~n < 1); 1380#L10 assume !(1 == ~n); 1364#L13 call #t~ret4 := fibo(~n - 1);< 1365#$Ultimate##0 ~n := #in~n; 1385#L8 assume !(~n < 1); 1403#L10 assume !(1 == ~n); 1375#L13 call #t~ret4 := fibo(~n - 1);< 1365#$Ultimate##0 ~n := #in~n; 1385#L8 assume !(~n < 1); 1403#L10 assume !(1 == ~n); 1375#L13 call #t~ret4 := fibo(~n - 1);< 1365#$Ultimate##0 ~n := #in~n; 1384#L8 assume !(~n < 1); 1381#L10 assume 1 == ~n;#res := 1; 1382#fiboFINAL assume true; 1374#fiboEXIT >#35#return; 1376#L13-1 call #t~ret5 := fibo(~n - 2);< 1402#$Ultimate##0 ~n := #in~n; 1408#L8 assume ~n < 1;#res := 0; 1407#fiboFINAL assume true; 1401#fiboEXIT >#37#return; 1399#L13-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 1397#fiboFINAL assume true; 1394#fiboEXIT >#35#return; 1368#L13-1
[2024-11-08 17:13:14,770 INFO L747 eck$LassoCheckResult]: Loop: 1368#L13-1 call #t~ret5 := fibo(~n - 2);< 1363#$Ultimate##0 ~n := #in~n; 1388#L8 assume !(~n < 1); 1389#L10 assume !(1 == ~n); 1367#L13 call #t~ret4 := fibo(~n - 1);< 1363#$Ultimate##0 ~n := #in~n; 1388#L8 assume !(~n < 1); 1389#L10 assume !(1 == ~n); 1367#L13 call #t~ret4 := fibo(~n - 1);< 1363#$Ultimate##0 ~n := #in~n; 1388#L8 assume !(~n < 1); 1389#L10 assume !(1 == ~n); 1367#L13 call #t~ret4 := fibo(~n - 1);< 1363#$Ultimate##0 ~n := #in~n; 1388#L8 assume !(~n < 1); 1389#L10 assume 1 == ~n;#res := 1; 1404#fiboFINAL assume true; 1405#fiboEXIT >#35#return; 1356#L13-1 call #t~ret5 := fibo(~n - 2);< 1355#$Ultimate##0 ~n := #in~n; 1357#L8 assume ~n < 1;#res := 0; 1379#fiboFINAL assume true; 1400#fiboEXIT >#37#return; 1366#L13-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 1370#fiboFINAL assume true; 1373#fiboEXIT >#35#return; 1368#L13-1 call #t~ret5 := fibo(~n - 2);< 1363#$Ultimate##0 ~n := #in~n; 1388#L8 assume ~n < 1;#res := 0; 1379#fiboFINAL assume true; 1400#fiboEXIT >#37#return; 1391#L13-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 1398#fiboFINAL assume true; 1395#fiboEXIT >#35#return; 1368#L13-1
[2024-11-08 17:13:14,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:14,770 INFO L85 PathProgramCache]: Analyzing trace with hash 870102534, now seen corresponding path program 2 times
[2024-11-08 17:13:14,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:14,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606300280]
[2024-11-08 17:13:14,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:14,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:14,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 17:13:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:14,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-11-08 17:13:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:14,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2024-11-08 17:13:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:14,996 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 17:13:14,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:13:14,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606300280]
[2024-11-08 17:13:14,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606300280] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:13:14,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065028096]
[2024-11-08 17:13:14,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 17:13:14,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:14,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:15,000 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:15,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2024-11-08 17:13:15,058 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-08 17:13:15,058 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 17:13:15,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:15,060 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:15,140 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 17:13:15,140 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:13:15,503 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 47 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:13:15,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065028096] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:13:15,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:13:15,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 22
[2024-11-08 17:13:15,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76844013]
[2024-11-08 17:13:15,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:13:15,504 INFO L750 eck$LassoCheckResult]: stem already infeasible
[2024-11-08 17:13:15,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:15,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1083596768, now seen corresponding path program 1 times
[2024-11-08 17:13:15,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:15,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693331412]
[2024-11-08 17:13:15,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:15,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:15,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2024-11-08 17:13:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:15,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-11-08 17:13:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:15,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-11-08 17:13:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:15,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2024-11-08 17:13:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:15,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2024-11-08 17:13:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:15,669 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 29 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-08 17:13:15,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:13:15,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693331412]
[2024-11-08 17:13:15,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693331412] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:13:15,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120159050]
[2024-11-08 17:13:15,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:15,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:15,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:15,672 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:15,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process
[2024-11-08 17:13:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:15,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:15,725 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:15,785 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2024-11-08 17:13:15,786 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:13:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 30 proven. 13 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-11-08 17:13:16,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120159050] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:13:16,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:13:16,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 14
[2024-11-08 17:13:16,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092733524]
[2024-11-08 17:13:16,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:13:16,103 INFO L762 eck$LassoCheckResult]: loop already infeasible
[2024-11-08 17:13:16,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:13:16,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-08 17:13:16,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506
[2024-11-08 17:13:16,105 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. cyclomatic complexity: 18 Second operand has 23 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 15 states have internal predecessors, (41), 13 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-08 17:13:16,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:16,541 INFO L93 Difference]: Finished difference Result 110 states and 129 transitions.
[2024-11-08 17:13:16,541 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 129 transitions.
[2024-11-08 17:13:16,543 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-08 17:13:16,545 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 99 states and 118 transitions.
[2024-11-08 17:13:16,546 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 72
[2024-11-08 17:13:16,546 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72
[2024-11-08 17:13:16,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 118 transitions.
[2024-11-08 17:13:16,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-08 17:13:16,547 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 118 transitions.
[2024-11-08 17:13:16,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 118 transitions.
[2024-11-08 17:13:16,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99.
[2024-11-08 17:13:16,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 64 states have (on average 1.046875) internal successors, (67), 66 states have internal predecessors, (67), 23 states have call successors, (23), 14 states have call predecessors, (23), 12 states have return successors, (28), 18 states have call predecessors, (28), 20 states have call successors, (28)
[2024-11-08 17:13:16,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 118 transitions.
[2024-11-08 17:13:16,558 INFO L240 hiAutomatonCegarLoop]: Abstraction has 99 states and 118 transitions.
[2024-11-08 17:13:16,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2024-11-08 17:13:16,559 INFO L425 stractBuchiCegarLoop]: Abstraction has 99 states and 118 transitions.
[2024-11-08 17:13:16,560 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============
[2024-11-08 17:13:16,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 118 transitions.
[2024-11-08 17:13:16,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-08 17:13:16,564 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-08 17:13:16,564 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-08 17:13:16,566 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 9, 8, 8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:16,566 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1]
[2024-11-08 17:13:16,568 INFO L745 eck$LassoCheckResult]: Stem: 2063#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3); 2064#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 10; 2059#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 2060#$Ultimate##0 ~n := #in~n; 2066#L8 assume !(~n < 1); 2067#L10 assume !(1 == ~n); 2050#L13 call #t~ret4 := fibo(~n - 1);< 2049#$Ultimate##0 ~n := #in~n; 2051#L8 assume !(~n < 1); 2091#L10 assume !(1 == ~n); 2055#L13 call #t~ret4 := fibo(~n - 1);< 2056#$Ultimate##0 ~n := #in~n; 2090#L8 assume !(~n < 1); 2089#L10 assume !(1 == ~n); 2085#L13 call #t~ret4 := fibo(~n - 1);< 2088#$Ultimate##0 ~n := #in~n; 2087#L8 assume !(~n < 1); 2086#L10 assume !(1 == ~n); 2081#L13 call #t~ret4 := fibo(~n - 1);< 2084#$Ultimate##0 ~n := #in~n; 2083#L8 assume !(~n < 1); 2082#L10 assume !(1 == ~n); 2077#L13 call #t~ret4 := fibo(~n - 1);< 2080#$Ultimate##0 ~n := #in~n; 2079#L8 assume !(~n < 1); 2078#L10 assume !(1 == ~n); 2069#L13 call #t~ret4 := fibo(~n - 1);< 2075#$Ultimate##0 ~n := #in~n; 2076#L8 assume !(~n < 1); 2144#L10 assume !(1 == ~n); 2070#L13 call #t~ret4 := fibo(~n - 1);< 2075#$Ultimate##0 ~n := #in~n; 2076#L8 assume !(~n < 1); 2144#L10 assume !(1 == ~n); 2070#L13 call #t~ret4 := fibo(~n - 1);< 2075#$Ultimate##0 ~n := #in~n; 2074#L8 assume !(~n < 1); 2068#L10 assume 1 == ~n;#res := 1; 2071#fiboFINAL assume true; 2102#fiboEXIT >#35#return; 2047#L13-1 call #t~ret5 := fibo(~n - 2);< 2046#$Ultimate##0 ~n := #in~n; 2048#L8 assume ~n < 1;#res := 0; 2065#fiboFINAL assume true; 2119#fiboEXIT >#37#return; 2117#L13-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 2111#fiboFINAL assume true; 2107#fiboEXIT >#35#return; 2097#L13-1
[2024-11-08 17:13:16,568 INFO L747 eck$LassoCheckResult]: Loop: 2097#L13-1 call #t~ret5 := fibo(~n - 2);< 2103#$Ultimate##0 ~n := #in~n; 2115#L8 assume !(~n < 1); 2110#L10 assume !(1 == ~n); 2096#L13 call #t~ret4 := fibo(~n - 1);< 2103#$Ultimate##0 ~n := #in~n; 2115#L8 assume !(~n < 1); 2110#L10 assume !(1 == ~n); 2096#L13 call #t~ret4 := fibo(~n - 1);< 2103#$Ultimate##0 ~n := #in~n; 2115#L8 assume !(~n < 1); 2110#L10 assume 1 == ~n;#res := 1; 2104#fiboFINAL assume true; 2100#fiboEXIT >#35#return; 2093#L13-1 call #t~ret5 := fibo(~n - 2);< 2099#$Ultimate##0 ~n := #in~n; 2124#L8 assume ~n < 1;#res := 0; 2116#fiboFINAL assume true; 2120#fiboEXIT >#37#return; 2121#L13-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 2143#fiboFINAL assume true; 2105#fiboEXIT >#35#return; 2097#L13-1
[2024-11-08 17:13:16,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:16,569 INFO L85 PathProgramCache]: Analyzing trace with hash -683438758, now seen corresponding path program 3 times
[2024-11-08 17:13:16,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:16,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562337859]
[2024-11-08 17:13:16,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:16,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:16,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2024-11-08 17:13:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:16,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-11-08 17:13:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:17,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2024-11-08 17:13:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:17,010 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 2 proven. 153 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 17:13:17,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:13:17,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562337859]
[2024-11-08 17:13:17,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562337859] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:13:17,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028703569]
[2024-11-08 17:13:17,015 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-08 17:13:17,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:17,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:17,019 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:17,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process
[2024-11-08 17:13:17,091 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s)
[2024-11-08 17:13:17,092 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 17:13:17,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:17,095 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:17,222 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 2 proven. 153 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 17:13:17,222 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:13:17,626 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 2 proven. 155 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 17:13:17,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028703569] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:13:17,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:13:17,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 20] total 23
[2024-11-08 17:13:17,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49233463]
[2024-11-08 17:13:17,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:13:17,627 INFO L750 eck$LassoCheckResult]: stem already infeasible
[2024-11-08 17:13:17,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:17,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2000232554, now seen corresponding path program 2 times
[2024-11-08 17:13:17,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:17,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852232645]
[2024-11-08 17:13:17,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:17,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:13:17,633 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 17:13:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:13:17,638 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 17:13:17,920 INFO L204 LassoAnalysis]: Preferences:
[2024-11-08 17:13:17,920 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-08 17:13:17,920 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-08 17:13:17,920 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-08 17:13:17,920 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-08 17:13:17,920 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:17,921 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-08 17:13:17,921 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-08 17:13:17,921 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration6_Loop
[2024-11-08 17:13:17,921 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-08 17:13:17,921 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-08 17:13:17,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:17,934 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:17,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:17,940 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:17,997 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-08 17:13:17,997 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-08 17:13:17,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:17,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:18,001 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:18,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process
[2024-11-08 17:13:18,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 17:13:18,004 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:18,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:18,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:18,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:18,052 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:18,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process
[2024-11-08 17:13:18,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-08 17:13:18,057 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:18,915 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-11-08 17:13:18,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:18,919 INFO L204 LassoAnalysis]: Preferences:
[2024-11-08 17:13:18,919 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-08 17:13:18,919 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-08 17:13:18,919 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-08 17:13:18,919 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-11-08 17:13:18,919 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:18,919 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-08 17:13:18,919 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-08 17:13:18,919 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration6_Loop
[2024-11-08 17:13:18,919 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-08 17:13:18,919 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-08 17:13:18,921 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:18,930 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:18,934 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:18,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:19,012 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-08 17:13:19,013 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-11-08 17:13:19,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:19,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:19,015 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:19,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process
[2024-11-08 17:13:19,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 17:13:19,033 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 17:13:19,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 17:13:19,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 17:13:19,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 17:13:19,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 17:13:19,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 17:13:19,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 17:13:19,039 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-11-08 17:13:19,043 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2024-11-08 17:13:19,043 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero.
[2024-11-08 17:13:19,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:19,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:19,046 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:19,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process
[2024-11-08 17:13:19,048 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-11-08 17:13:19,049 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-11-08 17:13:19,049 INFO L474 LassoAnalysis]: Proved termination.
[2024-11-08 17:13:19,049 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fibo_~n) = 1*fibo_~n
Supporting invariants []
[2024-11-08 17:13:19,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0
[2024-11-08 17:13:19,069 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-11-08 17:13:19,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:19,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:19,158 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:19,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:19,458 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 17:13:19,620 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates
[2024-11-08 17:13:19,620 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 99 states and 118 transitions. cyclomatic complexity: 21 Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 6 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-08 17:13:19,736 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 99 states and 118 transitions. cyclomatic complexity: 21. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 6 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Result 106 states and 125 transitions. Complement of second has 11 states.
[2024-11-08 17:13:19,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states
[2024-11-08 17:13:19,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 6 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-08 17:13:19,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions.
[2024-11-08 17:13:19,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 48 letters. Loop has 22 letters.
[2024-11-08 17:13:19,738 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:19,738 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2024-11-08 17:13:19,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:19,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:19,828 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:20,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:20,109 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:20,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0
[2024-11-08 17:13:20,290 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 17:13:20,291 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 7 loop predicates
[2024-11-08 17:13:20,292 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 99 states and 118 transitions. cyclomatic complexity: 21 Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 6 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-08 17:13:20,418 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 99 states and 118 transitions. cyclomatic complexity: 21. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 6 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Result 106 states and 125 transitions. Complement of second has 11 states.
[2024-11-08 17:13:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states
[2024-11-08 17:13:20,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 6 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-08 17:13:20,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions.
[2024-11-08 17:13:20,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 48 letters. Loop has 22 letters.
[2024-11-08 17:13:20,422 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:20,423 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2024-11-08 17:13:20,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:20,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:20,511 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:20,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:20,779 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:20,937 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 17:13:20,937 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates
[2024-11-08 17:13:20,938 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 99 states and 118 transitions. cyclomatic complexity: 21 Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 6 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-08 17:13:21,305 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 99 states and 118 transitions. cyclomatic complexity: 21. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 6 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Result 537 states and 697 transitions. Complement of second has 132 states.
[2024-11-08 17:13:21,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 2 stem states 8 non-accepting loop states 1 accepting loop states
[2024-11-08 17:13:21,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 6 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6)
[2024-11-08 17:13:21,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 45 transitions.
[2024-11-08 17:13:21,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 45 transitions. Stem has 48 letters. Loop has 22 letters.
[2024-11-08 17:13:21,308 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:21,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 45 transitions. Stem has 70 letters. Loop has 22 letters.
[2024-11-08 17:13:21,310 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:21,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 45 transitions. Stem has 48 letters. Loop has 44 letters.
[2024-11-08 17:13:21,314 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:21,316 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 537 states and 697 transitions.
[2024-11-08 17:13:21,328 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14
[2024-11-08 17:13:21,345 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 537 states to 382 states and 513 transitions.
[2024-11-08 17:13:21,345 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 161
[2024-11-08 17:13:21,346 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 186
[2024-11-08 17:13:21,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 382 states and 513 transitions.
[2024-11-08 17:13:21,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-08 17:13:21,349 INFO L218 hiAutomatonCegarLoop]: Abstraction has 382 states and 513 transitions.
[2024-11-08 17:13:21,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states and 513 transitions.
[2024-11-08 17:13:21,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 337.
[2024-11-08 17:13:21,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 206 states have (on average 1.0922330097087378) internal successors, (225), 219 states have internal predecessors, (225), 80 states have call successors, (84), 42 states have call predecessors, (84), 51 states have return successors, (126), 75 states have call predecessors, (126), 70 states have call successors, (126)
[2024-11-08 17:13:21,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 435 transitions.
[2024-11-08 17:13:21,390 INFO L240 hiAutomatonCegarLoop]: Abstraction has 337 states and 435 transitions.
[2024-11-08 17:13:21,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:13:21,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-08 17:13:21,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552
[2024-11-08 17:13:21,392 INFO L87 Difference]: Start difference. First operand 337 states and 435 transitions. Second operand has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 15 states have internal predecessors, (43), 13 states have call successors, (13), 8 states have call predecessors, (13), 3 states have return successors, (6), 3 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 17:13:21,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:21,937 INFO L93 Difference]: Finished difference Result 462 states and 593 transitions.
[2024-11-08 17:13:21,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 462 states and 593 transitions.
[2024-11-08 17:13:21,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14
[2024-11-08 17:13:21,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 462 states to 455 states and 580 transitions.
[2024-11-08 17:13:21,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210
[2024-11-08 17:13:21,956 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210
[2024-11-08 17:13:21,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 455 states and 580 transitions.
[2024-11-08 17:13:21,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-08 17:13:21,957 INFO L218 hiAutomatonCegarLoop]: Abstraction has 455 states and 580 transitions.
[2024-11-08 17:13:21,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states and 580 transitions.
[2024-11-08 17:13:21,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 435.
[2024-11-08 17:13:21,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 267 states have (on average 1.0823970037453183) internal successors, (289), 281 states have internal predecessors, (289), 106 states have call successors, (110), 55 states have call predecessors, (110), 62 states have return successors, (159), 98 states have call predecessors, (159), 94 states have call successors, (159)
[2024-11-08 17:13:21,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 558 transitions.
[2024-11-08 17:13:21,998 INFO L240 hiAutomatonCegarLoop]: Abstraction has 435 states and 558 transitions.
[2024-11-08 17:13:21,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-11-08 17:13:22,000 INFO L425 stractBuchiCegarLoop]: Abstraction has 435 states and 558 transitions.
[2024-11-08 17:13:22,000 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============
[2024-11-08 17:13:22,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 435 states and 558 transitions.
[2024-11-08 17:13:22,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14
[2024-11-08 17:13:22,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-08 17:13:22,005 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-08 17:13:22,007 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [13, 12, 11, 11, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:13:22,007 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2024-11-08 17:13:22,007 INFO L745 eck$LassoCheckResult]: Stem: 4917#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3); 4918#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 10; 4908#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 4909#$Ultimate##0 ~n := #in~n; 4958#L8 assume !(~n < 1); 4957#L10 assume !(1 == ~n); 4953#L13 call #t~ret4 := fibo(~n - 1);< 4956#$Ultimate##0 ~n := #in~n; 4955#L8 assume !(~n < 1); 4954#L10 assume !(1 == ~n); 4949#L13 call #t~ret4 := fibo(~n - 1);< 4952#$Ultimate##0 ~n := #in~n; 4951#L8 assume !(~n < 1); 4950#L10 assume !(1 == ~n); 4945#L13 call #t~ret4 := fibo(~n - 1);< 4948#$Ultimate##0 ~n := #in~n; 4947#L8 assume !(~n < 1); 4946#L10 assume !(1 == ~n); 4941#L13 call #t~ret4 := fibo(~n - 1);< 4944#$Ultimate##0 ~n := #in~n; 4943#L8 assume !(~n < 1); 4942#L10 assume !(1 == ~n); 4937#L13 call #t~ret4 := fibo(~n - 1);< 4940#$Ultimate##0 ~n := #in~n; 4939#L8 assume !(~n < 1); 4938#L10 assume !(1 == ~n); 4933#L13 call #t~ret4 := fibo(~n - 1);< 4936#$Ultimate##0 ~n := #in~n; 4935#L8 assume !(~n < 1); 4934#L10 assume !(1 == ~n); 4914#L13 call #t~ret4 := fibo(~n - 1);< 4930#$Ultimate##0 ~n := #in~n; 4932#L8 assume !(~n < 1); 5268#L10 assume !(1 == ~n); 4913#L13 call #t~ret4 := fibo(~n - 1);< 4930#$Ultimate##0 ~n := #in~n; 4932#L8 assume !(~n < 1); 5268#L10 assume !(1 == ~n); 4913#L13 call #t~ret4 := fibo(~n - 1);< 4930#$Ultimate##0 ~n := #in~n; 4931#L8 assume !(~n < 1); 5315#L10 assume 1 == ~n;#res := 1; 5313#fiboFINAL assume true; 4912#fiboEXIT >#35#return; 4915#L13-1 call #t~ret5 := fibo(~n - 2);< 5284#$Ultimate##0 ~n := #in~n; 5288#L8 assume ~n < 1;#res := 0; 5287#fiboFINAL assume true; 5283#fiboEXIT >#37#return; 5282#L13-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5281#fiboFINAL assume true; 5267#fiboEXIT >#35#return; 4923#L13-1 call #t~ret5 := fibo(~n - 2);< 5244#$Ultimate##0 ~n := #in~n; 5273#L8 assume !(~n < 1); 5272#L10 assume !(1 == ~n); 4903#L13 call #t~ret4 := fibo(~n - 1);< 5046#$Ultimate##0 ~n := #in~n; 5045#L8 assume !(~n < 1); 5003#L10 assume !(1 == ~n); 4984#L13 call #t~ret4 := fibo(~n - 1);< 4992#$Ultimate##0
[2024-11-08 17:13:22,008 INFO L747 eck$LassoCheckResult]: Loop: 4992#$Ultimate##0 ~n := #in~n; 4999#L8 assume !(~n < 1); 4998#L10 assume !(1 == ~n); 4983#L13 call #t~ret4 := fibo(~n - 1);< 4992#$Ultimate##0
[2024-11-08 17:13:22,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:22,008 INFO L85 PathProgramCache]: Analyzing trace with hash -366223317, now seen corresponding path program 4 times
[2024-11-08 17:13:22,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:22,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011660516]
[2024-11-08 17:13:22,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:22,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:22,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-08 17:13:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:22,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-11-08 17:13:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:22,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2024-11-08 17:13:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 198 proven. 72 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2024-11-08 17:13:22,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:13:22,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011660516]
[2024-11-08 17:13:22,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011660516] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:13:22,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071896283]
[2024-11-08 17:13:22,463 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-08 17:13:22,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:13:22,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:22,465 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:13:22,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process
[2024-11-08 17:13:22,528 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-08 17:13:22,528 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 17:13:22,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:22,531 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:22,666 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 199 proven. 72 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2024-11-08 17:13:22,666 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:13:23,009 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 199 proven. 72 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2024-11-08 17:13:23,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071896283] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:13:23,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 17:13:23,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23, 23] total 24
[2024-11-08 17:13:23,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324870939]
[2024-11-08 17:13:23,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:13:23,014 INFO L750 eck$LassoCheckResult]: stem already infeasible
[2024-11-08 17:13:23,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:23,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1512524, now seen corresponding path program 2 times
[2024-11-08 17:13:23,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:13:23,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025936951]
[2024-11-08 17:13:23,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:13:23,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:13:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:13:23,018 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 17:13:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:13:23,021 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 17:13:23,066 INFO L204 LassoAnalysis]: Preferences:
[2024-11-08 17:13:23,066 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-08 17:13:23,066 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-08 17:13:23,066 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-08 17:13:23,067 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-08 17:13:23,067 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:23,067 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-08 17:13:23,067 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-08 17:13:23,067 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration7_Loop
[2024-11-08 17:13:23,067 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-08 17:13:23,067 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-08 17:13:23,068 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:23,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:23,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:23,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:23,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:23,120 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-08 17:13:23,120 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-08 17:13:23,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:23,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:23,127 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:23,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process
[2024-11-08 17:13:23,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 17:13:23,130 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:23,147 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 17:13:23,147 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_~n=0} Honda state: {fibo_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 17:13:23,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0
[2024-11-08 17:13:23,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:23,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:23,167 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:23,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process
[2024-11-08 17:13:23,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 17:13:23,170 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:23,187 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 17:13:23,188 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#res=0} Honda state: {fibo_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 17:13:23,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:23,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:23,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:23,208 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:23,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process
[2024-11-08 17:13:23,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 17:13:23,213 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:23,230 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 17:13:23,230 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 17:13:23,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:23,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:23,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:23,251 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:23,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process
[2024-11-08 17:13:23,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 17:13:23,281 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:23,306 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 17:13:23,306 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=0} Honda state: {fibo_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 17:13:23,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:23,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:23,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:23,338 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:23,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process
[2024-11-08 17:13:23,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 17:13:23,341 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:23,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0
[2024-11-08 17:13:23,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:23,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:23,379 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:23,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process
[2024-11-08 17:13:23,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-08 17:13:23,382 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 17:13:23,465 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-11-08 17:13:23,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0
[2024-11-08 17:13:23,469 INFO L204 LassoAnalysis]: Preferences:
[2024-11-08 17:13:23,469 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-08 17:13:23,469 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-08 17:13:23,469 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-08 17:13:23,469 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-11-08 17:13:23,469 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:23,470 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-08 17:13:23,470 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-08 17:13:23,470 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration7_Loop
[2024-11-08 17:13:23,470 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-08 17:13:23,470 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-08 17:13:23,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:23,475 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:23,478 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:23,487 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:23,490 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 17:13:23,528 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-08 17:13:23,529 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-11-08 17:13:23,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:23,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:23,531 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:23,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process
[2024-11-08 17:13:23,536 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 17:13:23,551 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 17:13:23,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 17:13:23,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 17:13:23,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 17:13:23,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 17:13:23,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 17:13:23,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 17:13:23,554 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 17:13:23,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:23,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:23,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:23,574 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:23,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process
[2024-11-08 17:13:23,577 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 17:13:23,591 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 17:13:23,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 17:13:23,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 17:13:23,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 17:13:23,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 17:13:23,592 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 17:13:23,592 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 17:13:23,597 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 17:13:23,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:23,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:23,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:23,617 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:23,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process
[2024-11-08 17:13:23,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 17:13:23,634 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 17:13:23,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 17:13:23,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 17:13:23,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 17:13:23,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 17:13:23,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 17:13:23,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 17:13:23,640 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-11-08 17:13:23,644 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2024-11-08 17:13:23,644 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2024-11-08 17:13:23,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 17:13:23,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:13:23,647 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 17:13:23,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process
[2024-11-08 17:13:23,650 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-11-08 17:13:23,650 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-11-08 17:13:23,650 INFO L474 LassoAnalysis]: Proved termination.
[2024-11-08 17:13:23,650 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fibo_#in~n) = 1*fibo_#in~n
Supporting invariants []
[2024-11-08 17:13:23,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0
[2024-11-08 17:13:23,669 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-11-08 17:13:23,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:23,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 30 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:23,787 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:24,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:24,056 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:24,084 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 17:13:24,085 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates
[2024-11-08 17:13:24,085 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 435 states and 558 transitions. cyclomatic complexity: 127 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 17:13:24,162 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 435 states and 558 transitions. cyclomatic complexity: 127. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 460 states and 583 transitions. Complement of second has 15 states.
[2024-11-08 17:13:24,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states
[2024-11-08 17:13:24,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 17:13:24,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions.
[2024-11-08 17:13:24,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 61 letters. Loop has 4 letters.
[2024-11-08 17:13:24,164 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:24,164 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2024-11-08 17:13:24,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:24,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 30 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:24,266 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:24,561 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:24,562 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:24,595 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 17:13:24,595 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates
[2024-11-08 17:13:24,596 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 435 states and 558 transitions. cyclomatic complexity: 127 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 17:13:24,689 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 435 states and 558 transitions. cyclomatic complexity: 127. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 460 states and 583 transitions. Complement of second has 15 states.
[2024-11-08 17:13:24,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states
[2024-11-08 17:13:24,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 17:13:24,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions.
[2024-11-08 17:13:24,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 61 letters. Loop has 4 letters.
[2024-11-08 17:13:24,692 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:24,692 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2024-11-08 17:13:24,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:13:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:24,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 30 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:24,814 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:25,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0
[2024-11-08 17:13:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:13:25,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 17:13:25,151 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:13:25,181 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 17:13:25,181 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates
[2024-11-08 17:13:25,181 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 435 states and 558 transitions. cyclomatic complexity: 127 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 17:13:25,288 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 435 states and 558 transitions. cyclomatic complexity: 127. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 589 states and 714 transitions. Complement of second has 19 states.
[2024-11-08 17:13:25,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states
[2024-11-08 17:13:25,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 17:13:25,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions.
[2024-11-08 17:13:25,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 61 letters. Loop has 4 letters.
[2024-11-08 17:13:25,291 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:25,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 65 letters. Loop has 4 letters.
[2024-11-08 17:13:25,291 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:25,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 61 letters. Loop has 8 letters.
[2024-11-08 17:13:25,296 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 17:13:25,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 589 states and 714 transitions.
[2024-11-08 17:13:25,305 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14
[2024-11-08 17:13:25,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 589 states to 450 states and 574 transitions.
[2024-11-08 17:13:25,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160
[2024-11-08 17:13:25,313 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 163
[2024-11-08 17:13:25,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 450 states and 574 transitions.
[2024-11-08 17:13:25,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-08 17:13:25,314 INFO L218 hiAutomatonCegarLoop]: Abstraction has 450 states and 574 transitions.
[2024-11-08 17:13:25,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states and 574 transitions.
[2024-11-08 17:13:25,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 445.
[2024-11-08 17:13:25,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 276 states have (on average 1.0797101449275361) internal successors, (298), 290 states have internal predecessors, (298), 107 states have call successors, (111), 56 states have call predecessors, (111), 62 states have return successors, (159), 98 states have call predecessors, (159), 94 states have call successors, (159)
[2024-11-08 17:13:25,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 568 transitions.
[2024-11-08 17:13:25,336 INFO L240 hiAutomatonCegarLoop]: Abstraction has 445 states and 568 transitions.
[2024-11-08 17:13:25,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:13:25,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-08 17:13:25,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552
[2024-11-08 17:13:25,337 INFO L87 Difference]: Start difference. First operand 445 states and 568 transitions. Second operand has 24 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 14 states have internal predecessors, (43), 12 states have call successors, (14), 12 states have call predecessors, (14), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 17:13:25,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:13:25,760 INFO L93 Difference]: Finished difference Result 469 states and 569 transitions.
[2024-11-08 17:13:25,760 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 469 states and 569 transitions.
[2024-11-08 17:13:25,767 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2024-11-08 17:13:25,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 469 states to 0 states and 0 transitions.
[2024-11-08 17:13:25,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2024-11-08 17:13:25,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2024-11-08 17:13:25,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2024-11-08 17:13:25,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2024-11-08 17:13:25,771 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-08 17:13:25,771 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-08 17:13:25,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2024-11-08 17:13:25,773 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-08 17:13:25,773 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============
[2024-11-08 17:13:25,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2024-11-08 17:13:25,774 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2024-11-08 17:13:25,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2024-11-08 17:13:25,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.11 05:13:25 BoogieIcfgContainer
[2024-11-08 17:13:25,785 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2024-11-08 17:13:25,786 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 17:13:25,786 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 17:13:25,786 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 17:13:25,787 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:08" (3/4) ...
[2024-11-08 17:13:25,790 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-08 17:13:25,792 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 17:13:25,793 INFO L158 Benchmark]: Toolchain (without parser) took 17474.33ms. Allocated memory was 142.6MB in the beginning and 209.7MB in the end (delta: 67.1MB). Free memory was 102.8MB in the beginning and 117.5MB in the end (delta: -14.7MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB.
[2024-11-08 17:13:25,793 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:13:25,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.99ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 90.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-08 17:13:25,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.57ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 89.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:13:25,794 INFO L158 Benchmark]: Boogie Preprocessor took 33.33ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 87.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:13:25,795 INFO L158 Benchmark]: RCFGBuilder took 238.30ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 78.2MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-11-08 17:13:25,796 INFO L158 Benchmark]: BuchiAutomizer took 16892.70ms. Allocated memory was 142.6MB in the beginning and 209.7MB in the end (delta: 67.1MB). Free memory was 78.2MB in the beginning and 117.5MB in the end (delta: -39.3MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB.
[2024-11-08 17:13:25,796 INFO L158 Benchmark]: Witness Printer took 5.94ms. Allocated memory is still 209.7MB. Free memory is still 117.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:13:25,798 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 263.99ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 90.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 34.57ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 89.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 33.33ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 87.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 238.30ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 78.2MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* BuchiAutomizer took 16892.70ms. Allocated memory was 142.6MB in the beginning and 209.7MB in the end (delta: 67.1MB). Free memory was 78.2MB in the beginning and 117.5MB in the end (delta: -39.3MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB.
* Witness Printer took 5.94ms. Allocated memory is still 209.7MB. Free memory is still 117.5MB. There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Constructed decomposition of program
Your program was decomposed into 10 terminating modules (6 trivial, 2 deterministic, 2 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 5 locations. One deterministic module has affine ranking function n and consists of 10 locations. One nondeterministic module has affine ranking function n and consists of 11 locations. One nondeterministic module has affine ranking function \old(n) and consists of 6 locations. 6 modules have a trivial ranking function, the largest among these consists of 24 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 16.8s and 8 iterations. TraceHistogramMax:13. Analysis of lassos took 9.6s. Construction of modules took 1.4s. Büchi inclusion checks took 5.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 92 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 8/26 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 517 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 485 mSDsluCounter, 720 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 509 mSDsCounter, 308 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1524 IncrementalHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 308 mSolverCounterUnsat, 211 mSDtfsCounter, 1524 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI3 SILT3 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp86 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq178 hnf93 smp76 dnf100 smp100 tf112 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.5s InitialAbstractionConstructionTime: 0.0s
- TerminationAnalysisResult: Termination proven
Buchi Automizer proved that your program is terminating
RESULT: Ultimate proved your program to be correct!
[2024-11-08 17:13:25,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0
[2024-11-08 17:13:26,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:26,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:26,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:26,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:26,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0
[2024-11-08 17:13:27,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-11-08 17:13:27,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b2a0a9-66d0-4d28-962b-2480ce518f6f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE