./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_7-2.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for termination
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_7-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1 --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 40add90db9f8d501baba3978de407d6383e788a1a5fafc7225d7676b58d18c84
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 11:53:35,088 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 11:53:35,145 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf
[2024-12-02 11:53:35,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 11:53:35,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 11:53:35,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 11:53:35,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 11:53:35,172 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 11:53:35,172 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 11:53:35,172 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 11:53:35,173 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 11:53:35,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 11:53:35,173 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 11:53:35,173 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2024-12-02 11:53:35,173 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2024-12-02 11:53:35,173 INFO L153 SettingsManager]: * Use old map elimination=false
[2024-12-02 11:53:35,173 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false
[2024-12-02 11:53:35,173 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true
[2024-12-02 11:53:35,174 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2024-12-02 11:53:35,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 11:53:35,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2024-12-02 11:53:35,174 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 11:53:35,174 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 11:53:35,174 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 11:53:35,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 11:53:35,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2024-12-02 11:53:35,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2024-12-02 11:53:35,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2024-12-02 11:53:35,174 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 11:53:35,174 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 11:53:35,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 11:53:35,175 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false
[2024-12-02 11:53:35,175 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 11:53:35,175 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 11:53:35,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 11:53:35,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 11:53:35,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 11:53:35,175 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM
[2024-12-02 11:53:35,175 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2024-12-02 11:53:35,176 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR
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_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1
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 -> 40add90db9f8d501baba3978de407d6383e788a1a5fafc7225d7676b58d18c84
[2024-12-02 11:53:35,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 11:53:35,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 11:53:35,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 11:53:35,420 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 11:53:35,420 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 11:53:35,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/recursive-simple/fibo_7-2.c
[2024-12-02 11:53:38,135 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/data/abfef617b/1cbecf8aab79434a9f8fbce20feac52c/FLAGbe4786da4
[2024-12-02 11:53:38,334 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 11:53:38,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/sv-benchmarks/c/recursive-simple/fibo_7-2.c
[2024-12-02 11:53:38,339 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/data/abfef617b/1cbecf8aab79434a9f8fbce20feac52c/FLAGbe4786da4
[2024-12-02 11:53:38,353 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/data/abfef617b/1cbecf8aab79434a9f8fbce20feac52c
[2024-12-02 11:53:38,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 11:53:38,356 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 11:53:38,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 11:53:38,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 11:53:38,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 11:53:38,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f90c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38, skipping insertion in model container
[2024-12-02 11:53:38,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,371 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 11:53:38,482 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 11:53:38,492 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 11:53:38,503 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 11:53:38,515 INFO L204 MainTranslator]: Completed translation
[2024-12-02 11:53:38,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38 WrapperNode
[2024-12-02 11:53:38,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 11:53:38,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 11:53:38,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 11:53:38,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 11:53:38,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,525 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,534 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20
[2024-12-02 11:53:38,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 11:53:38,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 11:53:38,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 11:53:38,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 11:53:38,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,541 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,547 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].
[2024-12-02 11:53:38,548 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,548 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,549 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,552 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,554 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 11:53:38,554 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 11:53:38,554 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 11:53:38,555 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 11:53:38,555 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38" (1/1) ...
[2024-12-02 11:53:38,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:38,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:38,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:38,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2024-12-02 11:53:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 11:53:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 11:53:38,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 11:53:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 11:53:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure fibo
[2024-12-02 11:53:38,603 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo
[2024-12-02 11:53:38,654 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 11:53:38,655 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 11:53:38,722 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live.
[2024-12-02 11:53:38,722 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 11:53:38,728 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 11:53:38,728 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-12-02 11:53:38,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:53:38 BoogieIcfgContainer
[2024-12-02 11:53:38,729 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 11:53:38,729 INFO L112 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2024-12-02 11:53:38,729 INFO L270 PluginConnector]: Initializing BuchiAutomizer...
[2024-12-02 11:53:38,733 INFO L274 PluginConnector]: BuchiAutomizer initialized
[2024-12-02 11:53:38,733 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-12-02 11:53:38,734 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 11:53:38" (1/3) ...
[2024-12-02 11:53:38,734 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69b5e663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 11:53:38, skipping insertion in model container
[2024-12-02 11:53:38,734 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-12-02 11:53:38,734 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:38" (2/3) ...
[2024-12-02 11:53:38,735 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69b5e663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 11:53:38, skipping insertion in model container
[2024-12-02 11:53:38,735 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-12-02 11:53:38,735 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:53:38" (3/3) ...
[2024-12-02 11:53:38,736 INFO L363 chiAutomizerObserver]: Analyzing ICFG fibo_7-2.c
[2024-12-02 11:53:38,770 INFO L300 stractBuchiCegarLoop]: Interprodecural is true
[2024-12-02 11:53:38,771 INFO L301 stractBuchiCegarLoop]: Hoare is None
[2024-12-02 11:53:38,771 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2024-12-02 11:53:38,771 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2024-12-02 11:53:38,771 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2024-12-02 11:53:38,771 INFO L305 stractBuchiCegarLoop]: Difference is false
[2024-12-02 11:53:38,771 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2024-12-02 11:53:38,771 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2024-12-02 11:53:38,775 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)
[2024-12-02 11:53:38,787 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-12-02 11:53:38,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-12-02 11:53:38,788 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-12-02 11:53:38,791 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2024-12-02 11:53:38,791 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2024-12-02 11:53:38,791 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============
[2024-12-02 11:53:38,791 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)
[2024-12-02 11:53:38,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-12-02 11:53:38,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-12-02 11:53:38,793 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-12-02 11:53:38,793 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2024-12-02 11:53:38,793 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2024-12-02 11:53:38,798 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"<
[2024-12-02 11:53:38,798 INFO L749 eck$LassoCheckResult]: Loop: "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"<
[2024-12-02 11:53:38,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:38,801 INFO L85 PathProgramCache]: Analyzing trace with hash 29885, now seen corresponding path program 1 times
[2024-12-02 11:53:38,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-12-02 11:53:38,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864064587]
[2024-12-02 11:53:38,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:38,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:53:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:53:38,864 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 11:53:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:53:38,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace
[2024-12-02 11:53:38,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:38,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1512524, now seen corresponding path program 1 times
[2024-12-02 11:53:38,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-12-02 11:53:38,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808280571]
[2024-12-02 11:53:38,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:38,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:53:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:53:38,890 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 11:53:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:53:38,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace
[2024-12-02 11:53:38,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:38,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1830210312, now seen corresponding path program 1 times
[2024-12-02 11:53:38,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-12-02 11:53:38,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974490829]
[2024-12-02 11:53:38,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:38,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:53:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:53:38,907 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 11:53:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:53:38,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace
[2024-12-02 11:53:39,010 INFO L204 LassoAnalysis]: Preferences:
[2024-12-02 11:53:39,010 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-12-02 11:53:39,010 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-12-02 11:53:39,010 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-12-02 11:53:39,011 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-12-02 11:53:39,011 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:39,011 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-12-02 11:53:39,011 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-12-02 11:53:39,011 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-2.c_Iteration1_Loop
[2024-12-02 11:53:39,011 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-12-02 11:53:39,011 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-12-02 11:53:39,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:39,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:39,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:39,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:39,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:39,110 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-12-02 11:53:39,111 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-12-02 11:53:39,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:39,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:39,114 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:39,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process
[2024-12-02 11:53:39,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:39,117 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:39,137 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-12-02 11:53:39,137 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-12-02 11:53:39,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0
[2024-12-02 11:53:39,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:39,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:39,148 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:39,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process
[2024-12-02 11:53:39,150 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:39,150 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:39,162 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-12-02 11:53:39,162 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#res=0} Honda state: {fibo_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-12-02 11:53:39,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0
[2024-12-02 11:53:39,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:39,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:39,169 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:39,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process
[2024-12-02 11:53:39,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:39,171 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:39,183 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-12-02 11:53:39,184 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_~n=0} Honda state: {fibo_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-12-02 11:53:39,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0
[2024-12-02 11:53:39,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:39,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:39,191 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:39,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process
[2024-12-02 11:53:39,193 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:39,193 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:39,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0
[2024-12-02 11:53:39,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:39,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:39,212 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:39,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process
[2024-12-02 11:53:39,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-12-02 11:53:39,215 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:39,268 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-12-02 11:53:39,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0
[2024-12-02 11:53:39,271 INFO L204 LassoAnalysis]: Preferences:
[2024-12-02 11:53:39,271 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-12-02 11:53:39,271 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-12-02 11:53:39,271 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-12-02 11:53:39,271 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-12-02 11:53:39,271 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:39,271 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-12-02 11:53:39,272 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-12-02 11:53:39,272 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-2.c_Iteration1_Loop
[2024-12-02 11:53:39,272 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-12-02 11:53:39,272 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-12-02 11:53:39,273 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:39,276 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:39,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:39,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:39,288 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:39,332 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-12-02 11:53:39,335 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-12-02 11:53:39,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:39,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:39,337 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:39,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process
[2024-12-02 11:53:39,340 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
[2024-12-02 11:53:39,352 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:39,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:39,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:39,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:39,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:39,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:39,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:39,358 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-12-02 11:53:39,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0
[2024-12-02 11:53:39,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:39,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:39,365 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:39,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process
[2024-12-02 11:53:39,367 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
[2024-12-02 11:53:39,381 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:39,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:39,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:39,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:39,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:39,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:39,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:39,384 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-12-02 11:53:39,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0
[2024-12-02 11:53:39,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:39,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:39,390 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:39,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process
[2024-12-02 11:53:39,393 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
[2024-12-02 11:53:39,404 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:39,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:39,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:39,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:39,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:39,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:39,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:39,407 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-12-02 11:53:39,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0
[2024-12-02 11:53:39,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:39,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:39,413 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:39,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process
[2024-12-02 11:53:39,415 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
[2024-12-02 11:53:39,426 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:39,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:39,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:39,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:39,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:39,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:39,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:39,430 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-12-02 11:53:39,434 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2024-12-02 11:53:39,437 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2024-12-02 11:53:39,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:39,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:39,440 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:39,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process
[2024-12-02 11:53:39,442 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-12-02 11:53:39,442 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-12-02 11:53:39,442 INFO L474 LassoAnalysis]: Proved termination.
[2024-12-02 11:53:39,443 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fibo_#in~n) = 1*fibo_#in~n
Supporting invariants []
[2024-12-02 11:53:39,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0
[2024-12-02 11:53:39,450 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-12-02 11:53:39,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:39,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:39,497 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:39,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0
[2024-12-02 11:53:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:39,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:39,530 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:39,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:53:39,597 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
[2024-12-02 11:53:39,599 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)
[2024-12-02 11:53:39,679 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.
[2024-12-02 11:53:39,681 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
[2024-12-02 11:53:39,685 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)
[2024-12-02 11:53:39,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions.
[2024-12-02 11:53:39,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 3 letters. Loop has 4 letters.
[2024-12-02 11:53:39,693 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:39,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 7 letters. Loop has 4 letters.
[2024-12-02 11:53:39,693 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:39,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 3 letters. Loop has 8 letters.
[2024-12-02 11:53:39,694 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:39,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 54 transitions.
[2024-12-02 11:53:39,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-12-02 11:53:39,701 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 23 states and 31 transitions.
[2024-12-02 11:53:39,702 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15
[2024-12-02 11:53:39,702 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16
[2024-12-02 11:53:39,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions.
[2024-12-02 11:53:39,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-12-02 11:53:39,704 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 31 transitions.
[2024-12-02 11:53:39,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions.
[2024-12-02 11:53:39,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20.
[2024-12-02 11:53:39,723 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)
[2024-12-02 11:53:39,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions.
[2024-12-02 11:53:39,725 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions.
[2024-12-02 11:53:39,725 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 26 transitions.
[2024-12-02 11:53:39,725 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============
[2024-12-02 11:53:39,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions.
[2024-12-02 11:53:39,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-12-02 11:53:39,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-12-02 11:53:39,725 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-12-02 11:53:39,726 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:53:39,726 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:53:39,726 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#35#return;"
[2024-12-02 11:53:39,726 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret5 := fibo(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#35#return;"
[2024-12-02 11:53:39,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:39,727 INFO L85 PathProgramCache]: Analyzing trace with hash 523436175, now seen corresponding path program 1 times
[2024-12-02 11:53:39,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-12-02 11:53:39,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385443795]
[2024-12-02 11:53:39,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:39,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:53:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:39,808 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2024-12-02 11:53:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:39,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace
[2024-12-02 11:53:39,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385443795]
[2024-12-02 11:53:39,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385443795] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:53:39,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104537903]
[2024-12-02 11:53:39,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:39,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:53:39,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:39,848 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:53:39,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-12-02 11:53:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:39,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:39,880 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:39,937 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:53:40,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104537903] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:53:40,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:53:40,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 12
[2024-12-02 11:53:40,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358220278]
[2024-12-02 11:53:40,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:53:40,026 INFO L752 eck$LassoCheckResult]: stem already infeasible
[2024-12-02 11:53:40,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:40,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1950983701, now seen corresponding path program 1 times
[2024-12-02 11:53:40,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-12-02 11:53:40,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405146571]
[2024-12-02 11:53:40,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:40,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:53:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:40,066 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2024-12-02 11:53:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:40,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace
[2024-12-02 11:53:40,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405146571]
[2024-12-02 11:53:40,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405146571] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:53:40,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133432999]
[2024-12-02 11:53:40,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:40,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:53:40,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:40,096 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:53:40,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-12-02 11:53:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:40,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:40,120 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:40,148 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:53:40,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133432999] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:53:40,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:53:40,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7
[2024-12-02 11:53:40,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840721210]
[2024-12-02 11:53:40,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:53:40,212 INFO L764 eck$LassoCheckResult]: loop already infeasible
[2024-12-02 11:53:40,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM
[2024-12-02 11:53:40,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-12-02 11:53:40,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2024-12-02 11:53:40,214 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 8 Second operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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)
[2024-12-02 11:53:40,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:53:40,269 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions.
[2024-12-02 11:53:40,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions.
[2024-12-02 11:53:40,270 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-12-02 11:53:40,271 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 24 states and 30 transitions.
[2024-12-02 11:53:40,271 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20
[2024-12-02 11:53:40,271 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20
[2024-12-02 11:53:40,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions.
[2024-12-02 11:53:40,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-12-02 11:53:40,271 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions.
[2024-12-02 11:53:40,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions.
[2024-12-02 11:53:40,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24.
[2024-12-02 11:53:40,274 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)
[2024-12-02 11:53:40,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions.
[2024-12-02 11:53:40,274 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions.
[2024-12-02 11:53:40,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 11:53:40,276 INFO L425 stractBuchiCegarLoop]: Abstraction has 24 states and 30 transitions.
[2024-12-02 11:53:40,276 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============
[2024-12-02 11:53:40,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 30 transitions.
[2024-12-02 11:53:40,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-12-02 11:53:40,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-12-02 11:53:40,277 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-12-02 11:53:40,277 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:53:40,277 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:53:40,277 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#35#return;"
[2024-12-02 11:53:40,277 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret5 := fibo(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#35#return;"
[2024-12-02 11:53:40,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:40,278 INFO L85 PathProgramCache]: Analyzing trace with hash -953322862, now seen corresponding path program 1 times
[2024-12-02 11:53:40,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-12-02 11:53:40,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919470751]
[2024-12-02 11:53:40,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:40,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:53:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:40,328 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2024-12-02 11:53:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:40,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace
[2024-12-02 11:53:40,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919470751]
[2024-12-02 11:53:40,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919470751] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:53:40,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525457916]
[2024-12-02 11:53:40,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:40,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:53:40,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:40,361 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:53:40,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-12-02 11:53:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:40,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:40,394 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:40,421 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:53:40,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525457916] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:53:40,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:53:40,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11
[2024-12-02 11:53:40,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386335411]
[2024-12-02 11:53:40,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:53:40,507 INFO L752 eck$LassoCheckResult]: stem already infeasible
[2024-12-02 11:53:40,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:40,508 INFO L85 PathProgramCache]: Analyzing trace with hash 350977484, now seen corresponding path program 1 times
[2024-12-02 11:53:40,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-12-02 11:53:40,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109623190]
[2024-12-02 11:53:40,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:40,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:53:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:53:40,513 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 11:53:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:53:40,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace
[2024-12-02 11:53:40,624 INFO L204 LassoAnalysis]: Preferences:
[2024-12-02 11:53:40,624 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-12-02 11:53:40,624 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-12-02 11:53:40,624 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-12-02 11:53:40,624 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-12-02 11:53:40,624 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:40,624 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-12-02 11:53:40,624 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-12-02 11:53:40,625 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-2.c_Iteration3_Loop
[2024-12-02 11:53:40,625 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-12-02 11:53:40,625 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-12-02 11:53:40,625 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:40,628 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:40,632 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:40,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:40,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:40,668 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-12-02 11:53:40,668 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-12-02 11:53:40,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:40,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:40,670 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:40,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process
[2024-12-02 11:53:40,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:40,673 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:40,685 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-12-02 11:53:40,685 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#in~n=2} Honda state: {fibo_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-12-02 11:53:40,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0
[2024-12-02 11:53:40,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:40,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:40,692 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:40,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process
[2024-12-02 11:53:40,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:40,694 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:40,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0
[2024-12-02 11:53:40,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:40,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:40,713 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:40,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process
[2024-12-02 11:53:40,715 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-12-02 11:53:40,716 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:40,732 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-12-02 11:53:40,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0
[2024-12-02 11:53:40,741 INFO L204 LassoAnalysis]: Preferences:
[2024-12-02 11:53:40,741 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-12-02 11:53:40,741 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-12-02 11:53:40,741 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-12-02 11:53:40,741 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-12-02 11:53:40,742 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:40,742 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-12-02 11:53:40,742 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-12-02 11:53:40,742 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-2.c_Iteration3_Loop
[2024-12-02 11:53:40,742 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-12-02 11:53:40,742 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-12-02 11:53:40,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:40,746 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:40,751 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:40,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:40,756 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:40,789 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-12-02 11:53:40,790 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-12-02 11:53:40,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:40,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:40,791 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:40,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process
[2024-12-02 11:53:40,794 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
[2024-12-02 11:53:40,804 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:40,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:40,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:40,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:40,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:40,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:40,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:40,807 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-12-02 11:53:40,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0
[2024-12-02 11:53:40,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:40,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:40,813 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:40,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process
[2024-12-02 11:53:40,816 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
[2024-12-02 11:53:40,826 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:40,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:40,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:40,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:40,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:40,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:40,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:40,829 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-12-02 11:53:40,831 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2024-12-02 11:53:40,831 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2024-12-02 11:53:40,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:40,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:40,833 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:40,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process
[2024-12-02 11:53:40,835 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-12-02 11:53:40,835 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-12-02 11:53:40,835 INFO L474 LassoAnalysis]: Proved termination.
[2024-12-02 11:53:40,835 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fibo_~n) = 1*fibo_~n
Supporting invariants []
[2024-12-02 11:53:40,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0
[2024-12-02 11:53:40,841 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-12-02 11:53:40,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:40,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:40,869 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:40,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:40,956 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:41,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:53:41,034 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
[2024-12-02 11:53:41,035 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)
[2024-12-02 11:53:41,245 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.
[2024-12-02 11:53:41,246 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
[2024-12-02 11:53:41,247 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)
[2024-12-02 11:53:41,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 40 transitions.
[2024-12-02 11:53:41,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 12 letters. Loop has 10 letters.
[2024-12-02 11:53:41,248 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:41,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 22 letters. Loop has 10 letters.
[2024-12-02 11:53:41,248 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:41,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 12 letters. Loop has 20 letters.
[2024-12-02 11:53:41,249 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:41,249 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 178 transitions.
[2024-12-02 11:53:41,254 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10
[2024-12-02 11:53:41,258 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 105 states and 151 transitions.
[2024-12-02 11:53:41,258 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62
[2024-12-02 11:53:41,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66
[2024-12-02 11:53:41,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 151 transitions.
[2024-12-02 11:53:41,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-12-02 11:53:41,259 INFO L218 hiAutomatonCegarLoop]: Abstraction has 105 states and 151 transitions.
[2024-12-02 11:53:41,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 151 transitions.
[2024-12-02 11:53:41,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 94.
[2024-12-02 11:53:41,268 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)
[2024-12-02 11:53:41,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 128 transitions.
[2024-12-02 11:53:41,270 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 128 transitions.
[2024-12-02 11:53:41,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM
[2024-12-02 11:53:41,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-12-02 11:53:41,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2024-12-02 11:53:41,271 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)
[2024-12-02 11:53:41,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:53:41,384 INFO L93 Difference]: Finished difference Result 119 states and 163 transitions.
[2024-12-02 11:53:41,384 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 163 transitions.
[2024-12-02 11:53:41,387 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10
[2024-12-02 11:53:41,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 114 states and 158 transitions.
[2024-12-02 11:53:41,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73
[2024-12-02 11:53:41,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73
[2024-12-02 11:53:41,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 158 transitions.
[2024-12-02 11:53:41,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-12-02 11:53:41,390 INFO L218 hiAutomatonCegarLoop]: Abstraction has 114 states and 158 transitions.
[2024-12-02 11:53:41,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 158 transitions.
[2024-12-02 11:53:41,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 106.
[2024-12-02 11:53:41,398 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)
[2024-12-02 11:53:41,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 143 transitions.
[2024-12-02 11:53:41,399 INFO L240 hiAutomatonCegarLoop]: Abstraction has 106 states and 143 transitions.
[2024-12-02 11:53:41,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 11:53:41,400 INFO L425 stractBuchiCegarLoop]: Abstraction has 106 states and 143 transitions.
[2024-12-02 11:53:41,400 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============
[2024-12-02 11:53:41,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states and 143 transitions.
[2024-12-02 11:53:41,402 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10
[2024-12-02 11:53:41,403 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-12-02 11:53:41,403 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-12-02 11:53:41,403 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:53:41,403 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:53:41,404 INFO L747 eck$LassoCheckResult]: Stem: "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(11, 2);call #Ultimate.allocInit(12, 3);" "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 := 7;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#35#return;" "call #t~ret5 := fibo(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#37#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#35#return;"
[2024-12-02 11:53:41,404 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret5 := fibo(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#35#return;"
[2024-12-02 11:53:41,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:41,404 INFO L85 PathProgramCache]: Analyzing trace with hash 870102534, now seen corresponding path program 1 times
[2024-12-02 11:53:41,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-12-02 11:53:41,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216473280]
[2024-12-02 11:53:41,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:41,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:53:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:41,521 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-12-02 11:53:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:41,578 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-12-02 11:53:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:41,602 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2024-12-02 11:53:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:41,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace
[2024-12-02 11:53:41,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216473280]
[2024-12-02 11:53:41,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216473280] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:53:41,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014243006]
[2024-12-02 11:53:41,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:41,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:53:41,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:41,612 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:53:41,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2024-12-02 11:53:41,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0
[2024-12-02 11:53:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:41,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:41,665 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:41,718 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:53:41,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014243006] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:53:41,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:53:41,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 18
[2024-12-02 11:53:41,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338641193]
[2024-12-02 11:53:41,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:53:41,931 INFO L752 eck$LassoCheckResult]: stem already infeasible
[2024-12-02 11:53:41,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:41,932 INFO L85 PathProgramCache]: Analyzing trace with hash 350977484, now seen corresponding path program 2 times
[2024-12-02 11:53:41,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-12-02 11:53:41,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797423127]
[2024-12-02 11:53:41,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:41,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:53:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:53:41,936 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 11:53:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:53:41,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace
[2024-12-02 11:53:42,027 INFO L204 LassoAnalysis]: Preferences:
[2024-12-02 11:53:42,028 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-12-02 11:53:42,028 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-12-02 11:53:42,028 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-12-02 11:53:42,028 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-12-02 11:53:42,028 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:42,028 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-12-02 11:53:42,028 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-12-02 11:53:42,028 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-2.c_Iteration4_Loop
[2024-12-02 11:53:42,028 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-12-02 11:53:42,028 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-12-02 11:53:42,029 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:42,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:42,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:42,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:42,041 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:42,073 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-12-02 11:53:42,073 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-12-02 11:53:42,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:42,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:42,075 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:42,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process
[2024-12-02 11:53:42,077 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:42,077 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:42,092 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-12-02 11:53:42,092 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=1} Honda state: {fibo_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-12-02 11:53:42,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0
[2024-12-02 11:53:42,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:42,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:42,099 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:42,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process
[2024-12-02 11:53:42,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:42,102 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:42,113 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-12-02 11:53:42,113 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#in~n=2} Honda state: {fibo_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-12-02 11:53:42,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0
[2024-12-02 11:53:42,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:42,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:42,120 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:42,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process
[2024-12-02 11:53:42,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:42,122 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:42,134 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-12-02 11:53:42,134 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-12-02 11:53:42,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0
[2024-12-02 11:53:42,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:42,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:42,140 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:42,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process
[2024-12-02 11:53:42,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:42,142 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:42,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0
[2024-12-02 11:53:42,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:42,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:42,161 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:42,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process
[2024-12-02 11:53:42,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-12-02 11:53:42,163 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:42,176 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-12-02 11:53:42,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0
[2024-12-02 11:53:42,182 INFO L204 LassoAnalysis]: Preferences:
[2024-12-02 11:53:42,182 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-12-02 11:53:42,182 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-12-02 11:53:42,182 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-12-02 11:53:42,182 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-12-02 11:53:42,182 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:42,182 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-12-02 11:53:42,182 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-12-02 11:53:42,182 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-2.c_Iteration4_Loop
[2024-12-02 11:53:42,182 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-12-02 11:53:42,182 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-12-02 11:53:42,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:42,186 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:42,188 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:42,190 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:42,192 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:42,220 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-12-02 11:53:42,221 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-12-02 11:53:42,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:42,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:42,222 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:42,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process
[2024-12-02 11:53:42,225 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
[2024-12-02 11:53:42,235 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:42,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:42,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:42,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:42,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:42,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:42,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:42,238 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-12-02 11:53:42,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0
[2024-12-02 11:53:42,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:42,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:42,244 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:42,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process
[2024-12-02 11:53:42,247 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
[2024-12-02 11:53:42,257 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:42,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:42,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:42,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:42,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:42,258 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:42,258 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:42,260 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-12-02 11:53:42,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0
[2024-12-02 11:53:42,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:42,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:42,266 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:42,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process
[2024-12-02 11:53:42,268 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
[2024-12-02 11:53:42,279 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:42,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:42,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:42,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:42,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:42,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:42,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:42,281 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-12-02 11:53:42,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0
[2024-12-02 11:53:42,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:42,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:42,288 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:42,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process
[2024-12-02 11:53:42,290 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
[2024-12-02 11:53:42,301 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:42,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:42,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:42,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:42,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:42,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:42,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:42,303 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-12-02 11:53:42,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0
[2024-12-02 11:53:42,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:42,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:42,311 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:42,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process
[2024-12-02 11:53:42,313 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
[2024-12-02 11:53:42,324 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:42,324 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:42,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:42,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:42,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:42,325 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:42,325 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:42,327 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-12-02 11:53:42,329 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2024-12-02 11:53:42,329 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2024-12-02 11:53:42,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:42,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:42,331 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:42,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process
[2024-12-02 11:53:42,333 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-12-02 11:53:42,333 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-12-02 11:53:42,333 INFO L474 LassoAnalysis]: Proved termination.
[2024-12-02 11:53:42,333 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fibo_~n) = 1*fibo_~n
Supporting invariants []
[2024-12-02 11:53:42,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0
[2024-12-02 11:53:42,338 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-12-02 11:53:42,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:42,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:42,384 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:42,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:42,583 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:42,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0
[2024-12-02 11:53:42,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:53:42,668 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
[2024-12-02 11:53:42,668 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4)
[2024-12-02 11:53:42,846 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 190 states and 265 transitions. Complement of second has 37 states.
[2024-12-02 11:53:42,847 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
[2024-12-02 11:53:42,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4)
[2024-12-02 11:53:42,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 40 transitions.
[2024-12-02 11:53:42,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 32 letters. Loop has 10 letters.
[2024-12-02 11:53:42,849 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:42,849 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2024-12-02 11:53:42,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:42,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:42,895 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:43,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:43,081 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:43,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:53:43,147 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 6 loop predicates
[2024-12-02 11:53:43,148 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4)
[2024-12-02 11:53:43,305 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 296 states and 402 transitions. Complement of second has 29 states.
[2024-12-02 11:53:43,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states
[2024-12-02 11:53:43,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4)
[2024-12-02 11:53:43,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 24 transitions.
[2024-12-02 11:53:43,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 32 letters. Loop has 10 letters.
[2024-12-02 11:53:43,308 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:43,308 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2024-12-02 11:53:43,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:43,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:43,360 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:43,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:43,540 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:43,605 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:53:43,606 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 6 loop predicates
[2024-12-02 11:53:43,606 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4)
[2024-12-02 11:53:43,807 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 817 states and 1129 transitions. Complement of second has 135 states.
[2024-12-02 11:53:43,807 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
[2024-12-02 11:53:43,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4)
[2024-12-02 11:53:43,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 45 transitions.
[2024-12-02 11:53:43,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 32 letters. Loop has 10 letters.
[2024-12-02 11:53:43,809 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:43,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 42 letters. Loop has 10 letters.
[2024-12-02 11:53:43,809 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:43,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 32 letters. Loop has 20 letters.
[2024-12-02 11:53:43,810 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:43,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 817 states and 1129 transitions.
[2024-12-02 11:53:43,823 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44
[2024-12-02 11:53:43,833 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 817 states to 418 states and 629 transitions.
[2024-12-02 11:53:43,834 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 162
[2024-12-02 11:53:43,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 182
[2024-12-02 11:53:43,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 418 states and 629 transitions.
[2024-12-02 11:53:43,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-12-02 11:53:43,835 INFO L218 hiAutomatonCegarLoop]: Abstraction has 418 states and 629 transitions.
[2024-12-02 11:53:43,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states and 629 transitions.
[2024-12-02 11:53:43,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 356.
[2024-12-02 11:53:43,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 223 states have (on average 1.1973094170403586) internal successors, (267), 239 states have internal predecessors, (267), 75 states have call successors, (84), 46 states have call predecessors, (84), 58 states have return successors, (142), 70 states have call predecessors, (142), 71 states have call successors, (142)
[2024-12-02 11:53:43,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 493 transitions.
[2024-12-02 11:53:43,865 INFO L240 hiAutomatonCegarLoop]: Abstraction has 356 states and 493 transitions.
[2024-12-02 11:53:43,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM
[2024-12-02 11:53:43,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-12-02 11:53:43,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342
[2024-12-02 11:53:43,866 INFO L87 Difference]: Start difference. First operand 356 states and 493 transitions. Second operand has 19 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 13 states have internal predecessors, (35), 11 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7)
[2024-12-02 11:53:44,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:53:44,155 INFO L93 Difference]: Finished difference Result 579 states and 897 transitions.
[2024-12-02 11:53:44,155 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 579 states and 897 transitions.
[2024-12-02 11:53:44,162 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54
[2024-12-02 11:53:44,170 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 579 states to 569 states and 881 transitions.
[2024-12-02 11:53:44,171 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 255
[2024-12-02 11:53:44,171 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 255
[2024-12-02 11:53:44,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 569 states and 881 transitions.
[2024-12-02 11:53:44,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-12-02 11:53:44,172 INFO L218 hiAutomatonCegarLoop]: Abstraction has 569 states and 881 transitions.
[2024-12-02 11:53:44,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states and 881 transitions.
[2024-12-02 11:53:44,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 527.
[2024-12-02 11:53:44,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 321 states have (on average 1.1869158878504673) internal successors, (381), 344 states have internal predecessors, (381), 121 states have call successors, (135), 62 states have call predecessors, (135), 85 states have return successors, (297), 120 states have call predecessors, (297), 115 states have call successors, (297)
[2024-12-02 11:53:44,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 813 transitions.
[2024-12-02 11:53:44,197 INFO L240 hiAutomatonCegarLoop]: Abstraction has 527 states and 813 transitions.
[2024-12-02 11:53:44,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-12-02 11:53:44,198 INFO L425 stractBuchiCegarLoop]: Abstraction has 527 states and 813 transitions.
[2024-12-02 11:53:44,198 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============
[2024-12-02 11:53:44,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 527 states and 813 transitions.
[2024-12-02 11:53:44,201 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54
[2024-12-02 11:53:44,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-12-02 11:53:44,201 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-12-02 11:53:44,202 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:53:44,202 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2024-12-02 11:53:44,202 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#35#return;" "call #t~ret5 := fibo(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"<
[2024-12-02 11:53:44,203 INFO L749 eck$LassoCheckResult]: Loop: "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"<
[2024-12-02 11:53:44,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:44,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1414791404, now seen corresponding path program 1 times
[2024-12-02 11:53:44,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-12-02 11:53:44,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148443744]
[2024-12-02 11:53:44,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:44,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:53:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:44,339 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2024-12-02 11:53:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:44,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace
[2024-12-02 11:53:44,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148443744]
[2024-12-02 11:53:44,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148443744] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:53:44,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209806107]
[2024-12-02 11:53:44,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:44,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:53:44,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:44,366 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:53:44,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process
[2024-12-02 11:53:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:44,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:44,402 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:44,450 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:53:44,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209806107] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:53:44,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:53:44,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 17
[2024-12-02 11:53:44,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528999457]
[2024-12-02 11:53:44,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:53:44,577 INFO L752 eck$LassoCheckResult]: stem already infeasible
[2024-12-02 11:53:44,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:44,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1512524, now seen corresponding path program 2 times
[2024-12-02 11:53:44,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-12-02 11:53:44,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135355322]
[2024-12-02 11:53:44,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:44,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:53:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:53:44,580 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 11:53:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:53:44,582 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace
[2024-12-02 11:53:44,617 INFO L204 LassoAnalysis]: Preferences:
[2024-12-02 11:53:44,617 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-12-02 11:53:44,617 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-12-02 11:53:44,617 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-12-02 11:53:44,617 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-12-02 11:53:44,617 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:44,617 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-12-02 11:53:44,617 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-12-02 11:53:44,617 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-2.c_Iteration5_Loop
[2024-12-02 11:53:44,617 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-12-02 11:53:44,617 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-12-02 11:53:44,618 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:44,620 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:44,622 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:44,623 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:44,629 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:44,656 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-12-02 11:53:44,656 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-12-02 11:53:44,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:44,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:44,658 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:44,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process
[2024-12-02 11:53:44,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:44,661 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:44,673 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-12-02 11:53:44,673 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=0} Honda state: {fibo_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-12-02 11:53:44,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0
[2024-12-02 11:53:44,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:44,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:44,681 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:44,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process
[2024-12-02 11:53:44,683 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:44,683 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:44,695 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-12-02 11:53:44,695 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_~n=0} Honda state: {fibo_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-12-02 11:53:44,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0
[2024-12-02 11:53:44,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:44,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:44,701 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:44,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process
[2024-12-02 11:53:44,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:44,703 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:44,715 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-12-02 11:53:44,715 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-12-02 11:53:44,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0
[2024-12-02 11:53:44,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:44,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:44,722 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:44,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process
[2024-12-02 11:53:44,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:44,724 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:44,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0
[2024-12-02 11:53:44,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:44,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:44,742 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:44,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process
[2024-12-02 11:53:44,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-12-02 11:53:44,744 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:44,792 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-12-02 11:53:44,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0
[2024-12-02 11:53:44,795 INFO L204 LassoAnalysis]: Preferences:
[2024-12-02 11:53:44,795 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-12-02 11:53:44,795 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-12-02 11:53:44,795 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-12-02 11:53:44,795 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-12-02 11:53:44,795 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:44,795 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-12-02 11:53:44,795 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-12-02 11:53:44,795 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-2.c_Iteration5_Loop
[2024-12-02 11:53:44,795 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-12-02 11:53:44,795 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-12-02 11:53:44,796 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:44,797 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:44,798 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:44,799 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:44,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:44,822 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-12-02 11:53:44,822 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-12-02 11:53:44,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:44,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:44,824 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:44,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process
[2024-12-02 11:53:44,826 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
[2024-12-02 11:53:44,837 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:44,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:44,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:44,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:44,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:44,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:44,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:44,839 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-12-02 11:53:44,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0
[2024-12-02 11:53:44,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:44,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:44,846 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:44,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process
[2024-12-02 11:53:44,848 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
[2024-12-02 11:53:44,859 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:44,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:44,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:44,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:44,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:44,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:44,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:44,861 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-12-02 11:53:44,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0
[2024-12-02 11:53:44,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:44,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:44,869 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:44,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process
[2024-12-02 11:53:44,872 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
[2024-12-02 11:53:44,882 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:44,882 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:44,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:44,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:44,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:44,883 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:44,883 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:44,884 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-12-02 11:53:44,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0
[2024-12-02 11:53:44,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:44,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:44,891 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:44,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process
[2024-12-02 11:53:44,893 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
[2024-12-02 11:53:44,904 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:44,904 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:44,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:44,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:44,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:44,905 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:44,905 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:44,906 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-12-02 11:53:44,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0
[2024-12-02 11:53:44,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:44,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:44,916 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:44,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process
[2024-12-02 11:53:44,918 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
[2024-12-02 11:53:44,929 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:44,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:44,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:44,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:44,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:44,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:44,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:44,932 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-12-02 11:53:44,934 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2024-12-02 11:53:44,934 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2024-12-02 11:53:44,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:44,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:44,936 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:44,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process
[2024-12-02 11:53:44,937 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-12-02 11:53:44,937 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-12-02 11:53:44,938 INFO L474 LassoAnalysis]: Proved termination.
[2024-12-02 11:53:44,938 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fibo_#in~n) = 1*fibo_#in~n
Supporting invariants []
[2024-12-02 11:53:44,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0
[2024-12-02 11:53:44,944 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-12-02 11:53:44,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:44,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:44,995 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:45,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:45,080 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:45,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:53:45,102 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
[2024-12-02 11:53:45,102 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 527 states and 813 transitions. cyclomatic complexity: 296 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:53:45,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0
[2024-12-02 11:53:45,162 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 527 states and 813 transitions. cyclomatic complexity: 296. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 543 states and 829 transitions. Complement of second has 15 states.
[2024-12-02 11:53:45,163 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
[2024-12-02 11:53:45,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:53:45,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions.
[2024-12-02 11:53:45,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 37 letters. Loop has 4 letters.
[2024-12-02 11:53:45,164 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:45,164 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2024-12-02 11:53:45,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:45,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:45,227 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:45,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:45,300 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:45,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:53:45,318 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
[2024-12-02 11:53:45,318 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 527 states and 813 transitions. cyclomatic complexity: 296 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:53:45,367 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 527 states and 813 transitions. cyclomatic complexity: 296. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 543 states and 829 transitions. Complement of second has 15 states.
[2024-12-02 11:53:45,367 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
[2024-12-02 11:53:45,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:53:45,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions.
[2024-12-02 11:53:45,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 37 letters. Loop has 4 letters.
[2024-12-02 11:53:45,368 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:45,369 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2024-12-02 11:53:45,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:45,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:45,430 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:45,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:45,501 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:45,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:53:45,521 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
[2024-12-02 11:53:45,522 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 527 states and 813 transitions. cyclomatic complexity: 296 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:53:45,591 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 527 states and 813 transitions. cyclomatic complexity: 296. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 696 states and 998 transitions. Complement of second has 19 states.
[2024-12-02 11:53:45,591 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
[2024-12-02 11:53:45,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:53:45,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions.
[2024-12-02 11:53:45,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 37 letters. Loop has 4 letters.
[2024-12-02 11:53:45,593 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:45,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 41 letters. Loop has 4 letters.
[2024-12-02 11:53:45,593 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:45,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 37 letters. Loop has 8 letters.
[2024-12-02 11:53:45,594 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:45,594 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 696 states and 998 transitions.
[2024-12-02 11:53:45,602 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54
[2024-12-02 11:53:45,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 696 states to 583 states and 873 transitions.
[2024-12-02 11:53:45,611 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210
[2024-12-02 11:53:45,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219
[2024-12-02 11:53:45,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 583 states and 873 transitions.
[2024-12-02 11:53:45,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-12-02 11:53:45,612 INFO L218 hiAutomatonCegarLoop]: Abstraction has 583 states and 873 transitions.
[2024-12-02 11:53:45,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states and 873 transitions.
[2024-12-02 11:53:45,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 553.
[2024-12-02 11:53:45,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 345 states have (on average 1.173913043478261) internal successors, (405), 370 states have internal predecessors, (405), 121 states have call successors, (135), 62 states have call predecessors, (135), 87 states have return successors, (297), 120 states have call predecessors, (297), 115 states have call successors, (297)
[2024-12-02 11:53:45,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 837 transitions.
[2024-12-02 11:53:45,634 INFO L240 hiAutomatonCegarLoop]: Abstraction has 553 states and 837 transitions.
[2024-12-02 11:53:45,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM
[2024-12-02 11:53:45,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-12-02 11:53:45,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272
[2024-12-02 11:53:45,634 INFO L87 Difference]: Start difference. First operand 553 states and 837 transitions. Second operand has 17 states, 16 states have (on average 1.875) internal successors, (30), 12 states have internal predecessors, (30), 7 states have call successors, (8), 7 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:53:45,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:53:45,811 INFO L93 Difference]: Finished difference Result 641 states and 987 transitions.
[2024-12-02 11:53:45,811 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 641 states and 987 transitions.
[2024-12-02 11:53:45,819 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54
[2024-12-02 11:53:45,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 641 states to 624 states and 965 transitions.
[2024-12-02 11:53:45,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 234
[2024-12-02 11:53:45,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 234
[2024-12-02 11:53:45,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 624 states and 965 transitions.
[2024-12-02 11:53:45,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-12-02 11:53:45,828 INFO L218 hiAutomatonCegarLoop]: Abstraction has 624 states and 965 transitions.
[2024-12-02 11:53:45,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states and 965 transitions.
[2024-12-02 11:53:45,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 588.
[2024-12-02 11:53:45,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 366 states have (on average 1.169398907103825) internal successors, (428), 394 states have internal predecessors, (428), 134 states have call successors, (150), 69 states have call predecessors, (150), 88 states have return successors, (314), 124 states have call predecessors, (314), 127 states have call successors, (314)
[2024-12-02 11:53:45,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 892 transitions.
[2024-12-02 11:53:45,850 INFO L240 hiAutomatonCegarLoop]: Abstraction has 588 states and 892 transitions.
[2024-12-02 11:53:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-12-02 11:53:45,850 INFO L425 stractBuchiCegarLoop]: Abstraction has 588 states and 892 transitions.
[2024-12-02 11:53:45,851 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============
[2024-12-02 11:53:45,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 588 states and 892 transitions.
[2024-12-02 11:53:45,855 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54
[2024-12-02 11:53:45,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-12-02 11:53:45,855 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-12-02 11:53:45,855 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 9, 8, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:53:45,855 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2024-12-02 11:53:45,856 INFO L747 eck$LassoCheckResult]: Stem: "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(11, 2);call #Ultimate.allocInit(12, 3);" "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 := 7;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#35#return;" "call #t~ret5 := fibo(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);"
[2024-12-02 11:53:45,856 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);"
[2024-12-02 11:53:45,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:45,856 INFO L85 PathProgramCache]: Analyzing trace with hash 283397944, now seen corresponding path program 2 times
[2024-12-02 11:53:45,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-12-02 11:53:45,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199516385]
[2024-12-02 11:53:45,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:45,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:53:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:46,057 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2024-12-02 11:53:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:46,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace
[2024-12-02 11:53:46,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199516385]
[2024-12-02 11:53:46,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199516385] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:53:46,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172476937]
[2024-12-02 11:53:46,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:46,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:53:46,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:46,063 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:53:46,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process
[2024-12-02 11:53:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:46,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:46,101 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:46,145 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:53:46,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172476937] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:53:46,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:53:46,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 17
[2024-12-02 11:53:46,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473483133]
[2024-12-02 11:53:46,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:53:46,274 INFO L752 eck$LassoCheckResult]: stem already infeasible
[2024-12-02 11:53:46,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:46,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1955414, now seen corresponding path program 3 times
[2024-12-02 11:53:46,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-12-02 11:53:46,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162308481]
[2024-12-02 11:53:46,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:53:46,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:53:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:53:46,277 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 11:53:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:53:46,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace
[2024-12-02 11:53:46,326 INFO L204 LassoAnalysis]: Preferences:
[2024-12-02 11:53:46,327 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-12-02 11:53:46,327 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-12-02 11:53:46,327 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-12-02 11:53:46,327 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-12-02 11:53:46,327 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:46,327 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-12-02 11:53:46,327 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-12-02 11:53:46,327 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-2.c_Iteration6_Loop
[2024-12-02 11:53:46,327 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-12-02 11:53:46,327 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-12-02 11:53:46,327 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:46,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:46,335 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:46,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:46,373 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-12-02 11:53:46,373 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-12-02 11:53:46,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:46,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:46,375 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:46,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process
[2024-12-02 11:53:46,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-12-02 11:53:46,377 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:46,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0
[2024-12-02 11:53:46,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:46,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:46,410 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:46,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process
[2024-12-02 11:53:46,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-12-02 11:53:46,413 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-12-02 11:53:46,555 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-12-02 11:53:46,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0
[2024-12-02 11:53:46,559 INFO L204 LassoAnalysis]: Preferences:
[2024-12-02 11:53:46,559 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-12-02 11:53:46,559 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-12-02 11:53:46,559 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-12-02 11:53:46,559 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-12-02 11:53:46,559 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:46,559 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-12-02 11:53:46,559 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-12-02 11:53:46,559 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-2.c_Iteration6_Loop
[2024-12-02 11:53:46,559 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-12-02 11:53:46,559 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-12-02 11:53:46,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:46,566 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:46,567 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:46,568 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-12-02 11:53:46,597 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-12-02 11:53:46,597 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-12-02 11:53:46,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:46,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:46,599 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:46,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process
[2024-12-02 11:53:46,601 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
[2024-12-02 11:53:46,612 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-12-02 11:53:46,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-12-02 11:53:46,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-12-02 11:53:46,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-12-02 11:53:46,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-12-02 11:53:46,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-12-02 11:53:46,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-12-02 11:53:46,615 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-12-02 11:53:46,618 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2024-12-02 11:53:46,618 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero.
[2024-12-02 11:53:46,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-12-02 11:53:46,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:53:46,620 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-12-02 11:53:46,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process
[2024-12-02 11:53:46,622 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-12-02 11:53:46,622 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-12-02 11:53:46,622 INFO L474 LassoAnalysis]: Proved termination.
[2024-12-02 11:53:46,622 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fibo_~n) = 1*fibo_~n
Supporting invariants []
[2024-12-02 11:53:46,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0
[2024-12-02 11:53:46,627 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-12-02 11:53:46,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:46,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:46,687 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:46,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:46,770 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:46,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:53:46,800 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates
[2024-12-02 11:53:46,800 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 588 states and 892 transitions. cyclomatic complexity: 314 Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:53:46,847 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 588 states and 892 transitions. cyclomatic complexity: 314. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 604 states and 909 transitions. Complement of second has 18 states.
[2024-12-02 11:53:46,848 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
[2024-12-02 11:53:46,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:53:46,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions.
[2024-12-02 11:53:46,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 44 letters. Loop has 4 letters.
[2024-12-02 11:53:46,849 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:46,849 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2024-12-02 11:53:46,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:53:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:46,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:46,910 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:53:46,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 11:53:46,994 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:53:47,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:53:47,025 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 4 loop predicates
[2024-12-02 11:53:47,025 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 588 states and 892 transitions. cyclomatic complexity: 314 Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:53:47,106 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 588 states and 892 transitions. cyclomatic complexity: 314. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 824 states and 1226 transitions. Complement of second has 22 states.
[2024-12-02 11:53:47,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states
[2024-12-02 11:53:47,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:53:47,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 15 transitions.
[2024-12-02 11:53:47,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 44 letters. Loop has 4 letters.
[2024-12-02 11:53:47,108 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:47,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 48 letters. Loop has 4 letters.
[2024-12-02 11:53:47,108 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:47,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 44 letters. Loop has 8 letters.
[2024-12-02 11:53:47,108 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-12-02 11:53:47,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 824 states and 1226 transitions.
[2024-12-02 11:53:47,117 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54
[2024-12-02 11:53:47,127 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 824 states to 760 states and 1154 transitions.
[2024-12-02 11:53:47,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249
[2024-12-02 11:53:47,128 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 277
[2024-12-02 11:53:47,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 760 states and 1154 transitions.
[2024-12-02 11:53:47,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-12-02 11:53:47,128 INFO L218 hiAutomatonCegarLoop]: Abstraction has 760 states and 1154 transitions.
[2024-12-02 11:53:47,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states and 1154 transitions.
[2024-12-02 11:53:47,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 740.
[2024-12-02 11:53:47,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 466 states have (on average 1.150214592274678) internal successors, (536), 501 states have internal predecessors, (536), 167 states have call successors, (201), 94 states have call predecessors, (201), 107 states have return successors, (393), 144 states have call predecessors, (393), 160 states have call successors, (393)
[2024-12-02 11:53:47,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1130 transitions.
[2024-12-02 11:53:47,154 INFO L240 hiAutomatonCegarLoop]: Abstraction has 740 states and 1130 transitions.
[2024-12-02 11:53:47,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM
[2024-12-02 11:53:47,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-12-02 11:53:47,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272
[2024-12-02 11:53:47,154 INFO L87 Difference]: Start difference. First operand 740 states and 1130 transitions. Second operand has 17 states, 16 states have (on average 1.8125) internal successors, (29), 10 states have internal predecessors, (29), 8 states have call successors, (9), 9 states have call predecessors, (9), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-12-02 11:53:47,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 11:53:47,341 INFO L93 Difference]: Finished difference Result 319 states and 377 transitions.
[2024-12-02 11:53:47,341 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 377 transitions.
[2024-12-02 11:53:47,344 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2024-12-02 11:53:47,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 0 states and 0 transitions.
[2024-12-02 11:53:47,345 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2024-12-02 11:53:47,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2024-12-02 11:53:47,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2024-12-02 11:53:47,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2024-12-02 11:53:47,345 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-12-02 11:53:47,345 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-12-02 11:53:47,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-12-02 11:53:47,346 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-12-02 11:53:47,346 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============
[2024-12-02 11:53:47,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2024-12-02 11:53:47,346 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2024-12-02 11:53:47,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2024-12-02 11:53:47,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 11:53:47 BoogieIcfgContainer
[2024-12-02 11:53:47,354 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2024-12-02 11:53:47,355 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 11:53:47,355 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 11:53:47,355 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 11:53:47,356 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:53:38" (3/4) ...
[2024-12-02 11:53:47,358 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-12-02 11:53:47,358 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 11:53:47,359 INFO L158 Benchmark]: Toolchain (without parser) took 9003.14ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 117.3MB in the beginning and 55.2MB in the end (delta: 62.0MB). Peak memory consumption was 91.5MB. Max. memory is 16.1GB.
[2024-12-02 11:53:47,359 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 11:53:47,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.31ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 106.8MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 11:53:47,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.17ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 105.8MB in the end (delta: 978.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 11:53:47,360 INFO L158 Benchmark]: Boogie Preprocessor took 19.04ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 104.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 11:53:47,360 INFO L158 Benchmark]: RCFGBuilder took 174.22ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 95.3MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 11:53:47,360 INFO L158 Benchmark]: BuchiAutomizer took 8625.20ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 95.1MB in the beginning and 55.2MB in the end (delta: 39.8MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB.
[2024-12-02 11:53:47,361 INFO L158 Benchmark]: Witness Printer took 3.44ms. Allocated memory is still 176.2MB. Free memory was 55.2MB in the beginning and 55.2MB in the end (delta: 17.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 11:53:47,362 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 142.6MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 159.31ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 106.8MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 18.17ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 105.8MB in the end (delta: 978.9kB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 19.04ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 104.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 174.22ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 95.3MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* BuchiAutomizer took 8625.20ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 95.1MB in the beginning and 55.2MB in the end (delta: 39.8MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB.
* Witness Printer took 3.44ms. Allocated memory is still 176.2MB. Free memory was 55.2MB in the beginning and 55.2MB in the end (delta: 17.7kB). 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 (5 trivial, 3 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 deterministic module has affine ranking function n and consists of 7 locations. One nondeterministic module has affine ranking function n and consists of 10 locations. One nondeterministic module has affine ranking function \old(n) and consists of 6 locations. 5 modules have a trivial ranking function, the largest among these consists of 19 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 8.5s and 7 iterations. TraceHistogramMax:10. Analysis of lassos took 4.1s. Construction of modules took 0.8s. Büchi inclusion checks took 3.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 212 StatesRemovedByMinimization, 8 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, 1, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/6 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 456 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 431 mSDsluCounter, 609 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 390 mSDsCounter, 263 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1308 IncrementalHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 263 mSolverCounterUnsat, 219 mSDtfsCounter, 1308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI1 SILT4 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp82 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq185 hnf92 smp80 dnf100 smp100 tf112 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s
- TerminationAnalysisResult: Termination proven
Buchi Automizer proved that your program is terminating
RESULT: Ultimate proved your program to be correct!
[2024-12-02 11:53:47,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0
[2024-12-02 11:53:47,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0
[2024-12-02 11:53:47,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0
[2024-12-02 11:53:47,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0
[2024-12-02 11:53:48,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2024-12-02 11:53:48,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-12-02 11:53:48,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-12-02 11:53:48,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86015ca9-d548-4f3e-8fbb-da8d1cf29aeb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE