./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_10-2.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for termination
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_10-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a6546395432109233bf3e1991428a566548dd822bb23ca198622322bf4db5a8a
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:15:49,190 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:15:49,270 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf
[2024-11-23 23:15:49,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:15:49,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:15:49,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:15:49,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:15:49,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:15:49,301 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:15:49,301 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 23:15:49,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:15:49,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 23:15:49,301 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 23:15:49,301 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2024-11-23 23:15:49,302 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2024-11-23 23:15:49,302 INFO L153 SettingsManager]: * Use old map elimination=false
[2024-11-23 23:15:49,302 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false
[2024-11-23 23:15:49,302 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true
[2024-11-23 23:15:49,302 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2024-11-23 23:15:49,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:15:49,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2024-11-23 23:15:49,302 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 23:15:49,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 23:15:49,303 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 23:15:49,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 23:15:49,303 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2024-11-23 23:15:49,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2024-11-23 23:15:49,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2024-11-23 23:15:49,303 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-23 23:15:49,303 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 23:15:49,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 23:15:49,303 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false
[2024-11-23 23:15:49,303 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:15:49,303 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 23:15:49,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:15:49,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:15:49,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:15:49,304 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM
[2024-11-23 23:15:49,304 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2024-11-23 23:15:49,307 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_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6546395432109233bf3e1991428a566548dd822bb23ca198622322bf4db5a8a
[2024-11-23 23:15:49,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:15:49,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:15:49,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:15:49,600 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 23:15:49,601 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 23:15:49,602 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/recursive-simple/fibo_10-2.c
[2024-11-23 23:15:52,590 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/data/b74baa54c/7678507d452e48a9ae6b6edc8e43538b/FLAGee53d9df4
[2024-11-23 23:15:52,859 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 23:15:52,860 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/sv-benchmarks/c/recursive-simple/fibo_10-2.c
[2024-11-23 23:15:52,868 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/data/b74baa54c/7678507d452e48a9ae6b6edc8e43538b/FLAGee53d9df4
[2024-11-23 23:15:52,910 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/data/b74baa54c/7678507d452e48a9ae6b6edc8e43538b
[2024-11-23 23:15:52,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:15:52,914 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:15:52,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:15:52,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:15:52,924 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:15:52,925 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:15:52" (1/1) ...
[2024-11-23 23:15:52,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f918c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:52, skipping insertion in model container
[2024-11-23 23:15:52,929 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:15:52" (1/1) ...
[2024-11-23 23:15:52,944 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:15:53,118 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:15:53,131 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 23:15:53,144 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:15:53,164 INFO L204 MainTranslator]: Completed translation
[2024-11-23 23:15:53,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53 WrapperNode
[2024-11-23 23:15:53,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 23:15:53,166 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 23:15:53,166 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 23:15:53,166 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 23:15:53,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53" (1/1) ...
[2024-11-23 23:15:53,182 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53" (1/1) ...
[2024-11-23 23:15:53,200 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20
[2024-11-23 23:15:53,201 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 23:15:53,202 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 23:15:53,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 23:15:53,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 23:15:53,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53" (1/1) ...
[2024-11-23 23:15:53,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53" (1/1) ...
[2024-11-23 23:15:53,212 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53" (1/1) ...
[2024-11-23 23:15:53,226 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-23 23:15:53,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53" (1/1) ...
[2024-11-23 23:15:53,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53" (1/1) ...
[2024-11-23 23:15:53,230 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53" (1/1) ...
[2024-11-23 23:15:53,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53" (1/1) ...
[2024-11-23 23:15:53,234 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53" (1/1) ...
[2024-11-23 23:15:53,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53" (1/1) ...
[2024-11-23 23:15:53,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53" (1/1) ...
[2024-11-23 23:15:53,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 23:15:53,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 23:15:53,241 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 23:15:53,241 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 23:15:53,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53" (1/1) ...
[2024-11-23 23:15:53,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:53,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:53,283 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:53,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2024-11-23 23:15:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 23:15:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 23:15:53,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 23:15:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 23:15:53,316 INFO L130 BoogieDeclarations]: Found specification of procedure fibo
[2024-11-23 23:15:53,317 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo
[2024-11-23 23:15:53,381 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 23:15:53,383 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 23:15:53,499 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live.
[2024-11-23 23:15:53,499 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 23:15:53,507 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 23:15:53,507 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-23 23:15:53,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:15:53 BoogieIcfgContainer
[2024-11-23 23:15:53,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 23:15:53,509 INFO L112 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2024-11-23 23:15:53,509 INFO L270 PluginConnector]: Initializing BuchiAutomizer...
[2024-11-23 23:15:53,519 INFO L274 PluginConnector]: BuchiAutomizer initialized
[2024-11-23 23:15:53,520 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-11-23 23:15:53,520 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 11:15:52" (1/3) ...
[2024-11-23 23:15:53,522 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e3e22dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 11:15:53, skipping insertion in model container
[2024-11-23 23:15:53,522 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-11-23 23:15:53,522 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:53" (2/3) ...
[2024-11-23 23:15:53,522 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e3e22dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 11:15:53, skipping insertion in model container
[2024-11-23 23:15:53,523 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-11-23 23:15:53,523 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:15:53" (3/3) ...
[2024-11-23 23:15:53,525 INFO L363 chiAutomizerObserver]: Analyzing ICFG fibo_10-2.c
[2024-11-23 23:15:53,587 INFO L300 stractBuchiCegarLoop]: Interprodecural is true
[2024-11-23 23:15:53,587 INFO L301 stractBuchiCegarLoop]: Hoare is None
[2024-11-23 23:15:53,587 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2024-11-23 23:15:53,588 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2024-11-23 23:15:53,588 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2024-11-23 23:15:53,588 INFO L305 stractBuchiCegarLoop]: Difference is false
[2024-11-23 23:15:53,589 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2024-11-23 23:15:53,589 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2024-11-23 23:15:53,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-23 23:15:53,614 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-23 23:15:53,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-23 23:15:53,614 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-23 23:15:53,620 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2024-11-23 23:15:53,620 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2024-11-23 23:15:53,620 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============
[2024-11-23 23:15:53,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-23 23:15:53,622 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-23 23:15:53,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-23 23:15:53,623 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-23 23:15:53,623 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2024-11-23 23:15:53,623 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2024-11-23 23:15:53,631 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 10;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"<
[2024-11-23 23:15:53,631 INFO L749 eck$LassoCheckResult]: Loop: "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"<
[2024-11-23 23:15:53,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:15:53,640 INFO L85 PathProgramCache]: Analyzing trace with hash 29885, now seen corresponding path program 1 times
[2024-11-23 23:15:53,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-11-23 23:15:53,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463409383]
[2024-11-23 23:15:53,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:15:53,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:15:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:15:53,725 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 23:15:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:15:53,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace
[2024-11-23 23:15:53,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:15:53,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1512524, now seen corresponding path program 1 times
[2024-11-23 23:15:53,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-11-23 23:15:53,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159861601]
[2024-11-23 23:15:53,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:15:53,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:15:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:15:53,769 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 23:15:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:15:53,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace
[2024-11-23 23:15:53,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:15:53,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1830210312, now seen corresponding path program 1 times
[2024-11-23 23:15:53,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-11-23 23:15:53,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287524506]
[2024-11-23 23:15:53,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:15:53,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:15:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:15:53,798 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 23:15:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:15:53,809 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace
[2024-11-23 23:15:53,926 INFO L204 LassoAnalysis]: Preferences:
[2024-11-23 23:15:53,927 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-23 23:15:53,927 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-23 23:15:53,927 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-23 23:15:53,928 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-23 23:15:53,928 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:53,928 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-23 23:15:53,928 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-23 23:15:53,928 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration1_Loop
[2024-11-23 23:15:53,928 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-23 23:15:53,928 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-23 23:15:53,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:53,959 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:53,963 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:53,967 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:53,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:54,069 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-23 23:15:54,070 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-23 23:15:54,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:54,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:54,074 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:54,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process
[2024-11-23 23:15:54,078 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:15:54,078 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:15:54,098 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-23 23:15:54,098 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-23 23:15:54,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0
[2024-11-23 23:15:54,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:54,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:54,111 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:54,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process
[2024-11-23 23:15:54,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:15:54,115 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:15:54,132 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-23 23:15:54,132 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#res=0} Honda state: {fibo_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-23 23:15:54,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0
[2024-11-23 23:15:54,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:54,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:54,145 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:54,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process
[2024-11-23 23:15:54,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:15:54,148 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:15:54,161 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-23 23:15:54,161 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_~n=0} Honda state: {fibo_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-23 23:15:54,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0
[2024-11-23 23:15:54,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:54,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:54,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:54,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process
[2024-11-23 23:15:54,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:15:54,173 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:15:54,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0
[2024-11-23 23:15:54,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:54,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:54,194 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:54,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process
[2024-11-23 23:15:54,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-23 23:15:54,196 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:15:54,256 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-11-23 23:15:54,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0
[2024-11-23 23:15:54,259 INFO L204 LassoAnalysis]: Preferences:
[2024-11-23 23:15:54,259 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-23 23:15:54,259 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-23 23:15:54,259 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-23 23:15:54,259 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-11-23 23:15:54,259 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:54,259 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-23 23:15:54,259 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-23 23:15:54,259 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration1_Loop
[2024-11-23 23:15:54,260 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-23 23:15:54,260 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-23 23:15:54,261 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:54,265 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:54,270 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:54,277 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:54,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:54,375 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-23 23:15:54,380 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-11-23 23:15:54,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:54,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:54,384 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:54,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process
[2024-11-23 23:15:54,391 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:15:54,408 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:15:54,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:15:54,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:15:54,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:15:54,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:15:54,416 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:15:54,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:15:54,422 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-23 23:15:54,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0
[2024-11-23 23:15:54,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:54,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:54,433 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:54,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process
[2024-11-23 23:15:54,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:15:54,453 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:15:54,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:15:54,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:15:54,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:15:54,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:15:54,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:15:54,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:15:54,456 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-23 23:15:54,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0
[2024-11-23 23:15:54,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:54,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:54,467 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:54,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process
[2024-11-23 23:15:54,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:15:54,486 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:15:54,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:15:54,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:15:54,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:15:54,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:15:54,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:15:54,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:15:54,489 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-23 23:15:54,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0
[2024-11-23 23:15:54,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:54,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:54,534 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:54,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process
[2024-11-23 23:15:54,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:15:54,552 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:15:54,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:15:54,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:15:54,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:15:54,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:15:54,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:15:54,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:15:54,558 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-11-23 23:15:54,567 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2024-11-23 23:15:54,570 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2024-11-23 23:15:54,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:54,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:54,580 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:54,583 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-11-23 23:15:54,583 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-11-23 23:15:54,584 INFO L474 LassoAnalysis]: Proved termination.
[2024-11-23 23:15:54,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process
[2024-11-23 23:15:54,584 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fibo_#in~n) = 1*fibo_#in~n
Supporting invariants []
[2024-11-23 23:15:54,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0
[2024-11-23 23:15:54,596 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-11-23 23:15:54,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:15:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:54,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 23:15:54,664 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:15:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:54,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-23 23:15:54,703 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:15:54,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:15:54,797 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates
[2024-11-23 23:15:54,798 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:15:54,921 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 54 transitions. Complement of second has 16 states.
[2024-11-23 23:15:54,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states
[2024-11-23 23:15:54,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:15:54,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions.
[2024-11-23 23:15:54,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 3 letters. Loop has 4 letters.
[2024-11-23 23:15:54,942 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:15:54,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 7 letters. Loop has 4 letters.
[2024-11-23 23:15:54,943 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:15:54,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 3 letters. Loop has 8 letters.
[2024-11-23 23:15:54,943 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:15:54,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 54 transitions.
[2024-11-23 23:15:54,949 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-23 23:15:54,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 23 states and 31 transitions.
[2024-11-23 23:15:54,957 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15
[2024-11-23 23:15:54,957 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16
[2024-11-23 23:15:54,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions.
[2024-11-23 23:15:54,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-23 23:15:54,959 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 31 transitions.
[2024-11-23 23:15:54,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions.
[2024-11-23 23:15:54,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20.
[2024-11-23 23:15:54,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4)
[2024-11-23 23:15:54,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions.
[2024-11-23 23:15:54,992 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions.
[2024-11-23 23:15:54,992 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 26 transitions.
[2024-11-23 23:15:54,992 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============
[2024-11-23 23:15:54,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions.
[2024-11-23 23:15:54,993 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-23 23:15:54,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-23 23:15:54,994 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-23 23:15:54,996 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:15:54,996 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:15:54,997 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 10;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#35#return;"
[2024-11-23 23:15:54,997 INFO L749 eck$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;"
[2024-11-23 23:15:54,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:15:54,997 INFO L85 PathProgramCache]: Analyzing trace with hash 523436175, now seen corresponding path program 1 times
[2024-11-23 23:15:54,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-11-23 23:15:54,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91620038]
[2024-11-23 23:15:54,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:15:54,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:15:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:55,162 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2024-11-23 23:15:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:55,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace
[2024-11-23 23:15:55,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91620038]
[2024-11-23 23:15:55,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91620038] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:15:55,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316914466]
[2024-11-23 23:15:55,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:15:55,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:15:55,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:55,211 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:15:55,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-23 23:15:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:55,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-23 23:15:55,252 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:15:55,324 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:15:55,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316914466] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:15:55,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:15:55,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 12
[2024-11-23 23:15:55,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710374060]
[2024-11-23 23:15:55,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:15:55,440 INFO L752 eck$LassoCheckResult]: stem already infeasible
[2024-11-23 23:15:55,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:15:55,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1950983701, now seen corresponding path program 1 times
[2024-11-23 23:15:55,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-11-23 23:15:55,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010096609]
[2024-11-23 23:15:55,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:15:55,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:15:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:55,514 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2024-11-23 23:15:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:55,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace
[2024-11-23 23:15:55,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010096609]
[2024-11-23 23:15:55,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010096609] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:15:55,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325452066]
[2024-11-23 23:15:55,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:15:55,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:15:55,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:55,549 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:15:55,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-23 23:15:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:55,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-23 23:15:55,582 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:15:55,623 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:15:55,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325452066] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:15:55,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:15:55,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7
[2024-11-23 23:15:55,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579446935]
[2024-11-23 23:15:55,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:15:55,723 INFO L764 eck$LassoCheckResult]: loop already infeasible
[2024-11-23 23:15:55,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM
[2024-11-23 23:15:55,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-23 23:15:55,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2024-11-23 23:15:55,726 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)
[2024-11-23 23:15:55,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:15:55,813 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions.
[2024-11-23 23:15:55,813 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions.
[2024-11-23 23:15:55,815 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-23 23:15:55,816 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 24 states and 30 transitions.
[2024-11-23 23:15:55,816 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20
[2024-11-23 23:15:55,816 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20
[2024-11-23 23:15:55,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions.
[2024-11-23 23:15:55,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-23 23:15:55,816 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions.
[2024-11-23 23:15:55,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions.
[2024-11-23 23:15:55,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24.
[2024-11-23 23:15:55,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-23 23:15:55,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions.
[2024-11-23 23:15:55,833 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions.
[2024-11-23 23:15:55,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 23:15:55,838 INFO L425 stractBuchiCegarLoop]: Abstraction has 24 states and 30 transitions.
[2024-11-23 23:15:55,838 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============
[2024-11-23 23:15:55,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 30 transitions.
[2024-11-23 23:15:55,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2024-11-23 23:15:55,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-23 23:15:55,839 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-23 23:15:55,840 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:15:55,840 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:15:55,840 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 10;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#35#return;"
[2024-11-23 23:15:55,840 INFO L749 eck$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;"
[2024-11-23 23:15:55,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:15:55,840 INFO L85 PathProgramCache]: Analyzing trace with hash -953322862, now seen corresponding path program 1 times
[2024-11-23 23:15:55,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-11-23 23:15:55,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013700294]
[2024-11-23 23:15:55,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:15:55,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:15:55,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0
[2024-11-23 23:15:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:55,903 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2024-11-23 23:15:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:55,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace
[2024-11-23 23:15:55,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013700294]
[2024-11-23 23:15:55,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013700294] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:15:55,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971987998]
[2024-11-23 23:15:55,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:15:55,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:15:55,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:55,948 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:15:55,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-23 23:15:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:55,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-23 23:15:55,986 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:15:56,019 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:15:56,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971987998] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:15:56,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:15:56,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11
[2024-11-23 23:15:56,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159378538]
[2024-11-23 23:15:56,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:15:56,152 INFO L752 eck$LassoCheckResult]: stem already infeasible
[2024-11-23 23:15:56,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:15:56,152 INFO L85 PathProgramCache]: Analyzing trace with hash 350977484, now seen corresponding path program 1 times
[2024-11-23 23:15:56,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-11-23 23:15:56,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530892212]
[2024-11-23 23:15:56,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:15:56,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:15:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:15:56,162 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 23:15:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:15:56,167 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace
[2024-11-23 23:15:56,314 INFO L204 LassoAnalysis]: Preferences:
[2024-11-23 23:15:56,314 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-23 23:15:56,314 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-23 23:15:56,314 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-23 23:15:56,314 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-23 23:15:56,314 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:56,315 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-23 23:15:56,315 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-23 23:15:56,315 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration3_Loop
[2024-11-23 23:15:56,315 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-23 23:15:56,315 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-23 23:15:56,316 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:56,320 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:56,327 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:56,335 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:56,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:56,407 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-23 23:15:56,409 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-23 23:15:56,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:56,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:56,415 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:56,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process
[2024-11-23 23:15:56,418 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:15:56,418 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:15:56,431 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-23 23:15:56,431 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#in~n=2} Honda state: {fibo_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-23 23:15:56,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0
[2024-11-23 23:15:56,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:56,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:56,438 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:56,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process
[2024-11-23 23:15:56,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:15:56,441 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:15:56,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0
[2024-11-23 23:15:56,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:56,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:56,462 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:56,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process
[2024-11-23 23:15:56,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-23 23:15:56,464 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:15:56,480 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-11-23 23:15:56,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0
[2024-11-23 23:15:56,489 INFO L204 LassoAnalysis]: Preferences:
[2024-11-23 23:15:56,489 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-23 23:15:56,489 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-23 23:15:56,489 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-23 23:15:56,489 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-11-23 23:15:56,489 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:56,490 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-23 23:15:56,490 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-23 23:15:56,490 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration3_Loop
[2024-11-23 23:15:56,490 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-23 23:15:56,490 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-23 23:15:56,491 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:56,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:56,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:56,506 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:56,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:56,566 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-23 23:15:56,566 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-11-23 23:15:56,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:56,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:56,568 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:56,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process
[2024-11-23 23:15:56,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:15:56,587 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:15:56,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:15:56,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:15:56,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:15:56,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:15:56,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:15:56,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:15:56,593 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-23 23:15:56,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0
[2024-11-23 23:15:56,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:56,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:56,604 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:56,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:15:56,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process
[2024-11-23 23:15:56,622 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:15:56,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:15:56,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:15:56,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:15:56,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:15:56,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:15:56,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:15:56,629 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-11-23 23:15:56,632 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2024-11-23 23:15:56,632 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2024-11-23 23:15:56,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:56,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:56,636 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:56,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process
[2024-11-23 23:15:56,639 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-11-23 23:15:56,639 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-11-23 23:15:56,639 INFO L474 LassoAnalysis]: Proved termination.
[2024-11-23 23:15:56,639 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fibo_~n) = 1*fibo_~n
Supporting invariants []
[2024-11-23 23:15:56,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0
[2024-11-23 23:15:56,649 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-11-23 23:15:56,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:15:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:56,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-23 23:15:56,698 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:15:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:56,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-23 23:15:56,840 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:15:56,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:15:56,970 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates
[2024-11-23 23:15:56,970 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 8 Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-23 23:15:57,258 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 8. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 128 states and 178 transitions. Complement of second has 40 states.
[2024-11-23 23:15:57,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states
[2024-11-23 23:15:57,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-23 23:15:57,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 40 transitions.
[2024-11-23 23:15:57,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 12 letters. Loop has 10 letters.
[2024-11-23 23:15:57,263 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:15:57,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 22 letters. Loop has 10 letters.
[2024-11-23 23:15:57,263 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:15:57,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 12 letters. Loop has 20 letters.
[2024-11-23 23:15:57,264 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:15:57,264 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 178 transitions.
[2024-11-23 23:15:57,275 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10
[2024-11-23 23:15:57,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 105 states and 151 transitions.
[2024-11-23 23:15:57,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62
[2024-11-23 23:15:57,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66
[2024-11-23 23:15:57,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 151 transitions.
[2024-11-23 23:15:57,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-23 23:15:57,283 INFO L218 hiAutomatonCegarLoop]: Abstraction has 105 states and 151 transitions.
[2024-11-23 23:15:57,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 151 transitions.
[2024-11-23 23:15:57,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 94.
[2024-11-23 23:15:57,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 64 states have internal predecessors, (71), 21 states have call successors, (22), 11 states have call predecessors, (22), 15 states have return successors, (35), 18 states have call predecessors, (35), 19 states have call successors, (35)
[2024-11-23 23:15:57,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 128 transitions.
[2024-11-23 23:15:57,297 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 128 transitions.
[2024-11-23 23:15:57,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM
[2024-11-23 23:15:57,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-23 23:15:57,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2024-11-23 23:15:57,298 INFO L87 Difference]: Start difference. First operand 94 states and 128 transitions. Second operand has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-23 23:15:57,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:15:57,459 INFO L93 Difference]: Finished difference Result 119 states and 163 transitions.
[2024-11-23 23:15:57,459 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 163 transitions.
[2024-11-23 23:15:57,466 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10
[2024-11-23 23:15:57,469 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 114 states and 158 transitions.
[2024-11-23 23:15:57,469 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73
[2024-11-23 23:15:57,470 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73
[2024-11-23 23:15:57,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 158 transitions.
[2024-11-23 23:15:57,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-23 23:15:57,470 INFO L218 hiAutomatonCegarLoop]: Abstraction has 114 states and 158 transitions.
[2024-11-23 23:15:57,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 158 transitions.
[2024-11-23 23:15:57,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 106.
[2024-11-23 23:15:57,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 66 states have (on average 1.196969696969697) internal successors, (79), 72 states have internal predecessors, (79), 24 states have call successors, (25), 13 states have call predecessors, (25), 16 states have return successors, (39), 20 states have call predecessors, (39), 22 states have call successors, (39)
[2024-11-23 23:15:57,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 143 transitions.
[2024-11-23 23:15:57,484 INFO L240 hiAutomatonCegarLoop]: Abstraction has 106 states and 143 transitions.
[2024-11-23 23:15:57,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-23 23:15:57,486 INFO L425 stractBuchiCegarLoop]: Abstraction has 106 states and 143 transitions.
[2024-11-23 23:15:57,486 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============
[2024-11-23 23:15:57,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states and 143 transitions.
[2024-11-23 23:15:57,488 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10
[2024-11-23 23:15:57,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-23 23:15:57,488 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-23 23:15:57,489 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:15:57,490 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:15:57,490 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(12, 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 := 10;" "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;"
[2024-11-23 23:15:57,490 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;"
[2024-11-23 23:15:57,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:15:57,490 INFO L85 PathProgramCache]: Analyzing trace with hash 870102534, now seen corresponding path program 1 times
[2024-11-23 23:15:57,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-11-23 23:15:57,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348814990]
[2024-11-23 23:15:57,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:15:57,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:15:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:57,656 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-23 23:15:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:57,738 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-11-23 23:15:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:57,778 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2024-11-23 23:15:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:57,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace
[2024-11-23 23:15:57,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348814990]
[2024-11-23 23:15:57,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348814990] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:15:57,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262721193]
[2024-11-23 23:15:57,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:15:57,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:15:57,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:57,792 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:15:57,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2024-11-23 23:15:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:57,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-23 23:15:57,838 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:15:57,927 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:15:58,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262721193] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:15:58,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:15:58,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 22
[2024-11-23 23:15:58,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622637787]
[2024-11-23 23:15:58,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:15:58,272 INFO L752 eck$LassoCheckResult]: stem already infeasible
[2024-11-23 23:15:58,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:15:58,272 INFO L85 PathProgramCache]: Analyzing trace with hash 350977484, now seen corresponding path program 2 times
[2024-11-23 23:15:58,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-11-23 23:15:58,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043880751]
[2024-11-23 23:15:58,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:15:58,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:15:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:15:58,277 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 23:15:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:15:58,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace
[2024-11-23 23:15:58,408 INFO L204 LassoAnalysis]: Preferences:
[2024-11-23 23:15:58,408 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-23 23:15:58,408 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-23 23:15:58,409 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-23 23:15:58,409 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-23 23:15:58,409 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:58,409 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-23 23:15:58,409 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-23 23:15:58,409 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration4_Loop
[2024-11-23 23:15:58,409 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-23 23:15:58,409 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-23 23:15:58,410 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:58,414 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:58,418 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:58,422 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:58,429 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:58,474 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-23 23:15:58,476 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-23 23:15:58,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:58,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:58,481 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:58,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process
[2024-11-23 23:15:58,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:15:58,483 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:15:58,495 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-23 23:15:58,495 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=1} Honda state: {fibo_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-23 23:15:58,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0
[2024-11-23 23:15:58,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:58,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:58,505 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:58,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process
[2024-11-23 23:15:58,508 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:15:58,509 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:15:58,523 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-23 23:15:58,523 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#in~n=2} Honda state: {fibo_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-23 23:15:58,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0
[2024-11-23 23:15:58,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:58,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:58,534 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:58,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process
[2024-11-23 23:15:58,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:15:58,539 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:15:58,554 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-23 23:15:58,555 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-23 23:15:58,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0
[2024-11-23 23:15:58,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:58,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:58,566 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:58,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process
[2024-11-23 23:15:58,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:15:58,572 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:15:58,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0
[2024-11-23 23:15:58,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:58,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:58,603 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:58,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process
[2024-11-23 23:15:58,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-23 23:15:58,608 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:15:58,623 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-11-23 23:15:58,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0
[2024-11-23 23:15:58,632 INFO L204 LassoAnalysis]: Preferences:
[2024-11-23 23:15:58,632 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-23 23:15:58,632 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-23 23:15:58,632 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-23 23:15:58,632 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-11-23 23:15:58,632 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:58,632 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-23 23:15:58,633 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-23 23:15:58,633 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration4_Loop
[2024-11-23 23:15:58,633 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-23 23:15:58,633 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-23 23:15:58,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:58,639 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:58,643 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:58,646 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:58,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:15:58,693 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-23 23:15:58,693 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-11-23 23:15:58,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:58,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:58,697 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:58,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process
[2024-11-23 23:15:58,700 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:15:58,710 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:15:58,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:15:58,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:15:58,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:15:58,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:15:58,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:15:58,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:15:58,714 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-23 23:15:58,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0
[2024-11-23 23:15:58,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:58,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:58,722 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:58,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process
[2024-11-23 23:15:58,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:15:58,735 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:15:58,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:15:58,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:15:58,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:15:58,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:15:58,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:15:58,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:15:58,741 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-23 23:15:58,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0
[2024-11-23 23:15:58,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:58,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:58,752 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:58,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process
[2024-11-23 23:15:58,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:15:58,770 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:15:58,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:15:58,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:15:58,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:15:58,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:15:58,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:15:58,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:15:58,772 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-23 23:15:58,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0
[2024-11-23 23:15:58,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:58,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:58,783 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:58,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process
[2024-11-23 23:15:58,787 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:15:58,801 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:15:58,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:15:58,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:15:58,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:15:58,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:15:58,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:15:58,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:15:58,805 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-23 23:15:58,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0
[2024-11-23 23:15:58,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:58,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:58,816 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:58,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process
[2024-11-23 23:15:58,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:15:58,832 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:15:58,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:15:58,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:15:58,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:15:58,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:15:58,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:15:58,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:15:58,836 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-11-23 23:15:58,839 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2024-11-23 23:15:58,839 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2024-11-23 23:15:58,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:15:58,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:15:58,841 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:15:58,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process
[2024-11-23 23:15:58,843 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-11-23 23:15:58,843 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-11-23 23:15:58,843 INFO L474 LassoAnalysis]: Proved termination.
[2024-11-23 23:15:58,843 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fibo_~n) = 1*fibo_~n
Supporting invariants []
[2024-11-23 23:15:58,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0
[2024-11-23 23:15:58,851 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-11-23 23:15:58,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:15:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:58,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-23 23:15:58,930 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:15:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:59,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-23 23:15:59,221 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:15:59,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:15:59,327 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates
[2024-11-23 23:15:59,327 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)
[2024-11-23 23:15:59,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0
[2024-11-23 23:15:59,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0
[2024-11-23 23:15:59,644 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.
[2024-11-23 23:15:59,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states
[2024-11-23 23:15:59,648 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)
[2024-11-23 23:15:59,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 40 transitions.
[2024-11-23 23:15:59,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 32 letters. Loop has 10 letters.
[2024-11-23 23:15:59,649 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:15:59,649 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2024-11-23 23:15:59,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:15:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:59,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-23 23:15:59,711 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:15:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:15:59,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-23 23:15:59,952 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:00,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:16:00,042 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
[2024-11-23 23:16:00,044 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)
[2024-11-23 23:16:00,268 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.
[2024-11-23 23:16:00,271 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
[2024-11-23 23:16:00,272 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)
[2024-11-23 23:16:00,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 24 transitions.
[2024-11-23 23:16:00,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 32 letters. Loop has 10 letters.
[2024-11-23 23:16:00,272 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:16:00,272 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2024-11-23 23:16:00,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:16:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:00,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-23 23:16:00,333 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:00,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-23 23:16:00,555 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:00,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:16:00,639 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
[2024-11-23 23:16:00,639 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)
[2024-11-23 23:16:00,930 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.
[2024-11-23 23:16:00,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states
[2024-11-23 23:16:00,931 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)
[2024-11-23 23:16:00,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 45 transitions.
[2024-11-23 23:16:00,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 32 letters. Loop has 10 letters.
[2024-11-23 23:16:00,932 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:16:00,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 42 letters. Loop has 10 letters.
[2024-11-23 23:16:00,933 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:16:00,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 32 letters. Loop has 20 letters.
[2024-11-23 23:16:00,934 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:16:00,935 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 817 states and 1129 transitions.
[2024-11-23 23:16:00,948 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44
[2024-11-23 23:16:00,959 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 817 states to 418 states and 629 transitions.
[2024-11-23 23:16:00,960 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 162
[2024-11-23 23:16:00,960 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 182
[2024-11-23 23:16:00,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 418 states and 629 transitions.
[2024-11-23 23:16:00,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-23 23:16:00,961 INFO L218 hiAutomatonCegarLoop]: Abstraction has 418 states and 629 transitions.
[2024-11-23 23:16:00,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states and 629 transitions.
[2024-11-23 23:16:00,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 356.
[2024-11-23 23:16:00,996 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)
[2024-11-23 23:16:01,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 493 transitions.
[2024-11-23 23:16:01,006 INFO L240 hiAutomatonCegarLoop]: Abstraction has 356 states and 493 transitions.
[2024-11-23 23:16:01,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM
[2024-11-23 23:16:01,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-23 23:16:01,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506
[2024-11-23 23:16:01,008 INFO L87 Difference]: Start difference. First operand 356 states and 493 transitions. Second operand has 23 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 15 states have internal predecessors, (41), 13 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-23 23:16:01,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:16:01,500 INFO L93 Difference]: Finished difference Result 678 states and 1020 transitions.
[2024-11-23 23:16:01,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 678 states and 1020 transitions.
[2024-11-23 23:16:01,513 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54
[2024-11-23 23:16:01,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 678 states to 653 states and 984 transitions.
[2024-11-23 23:16:01,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 288
[2024-11-23 23:16:01,528 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 291
[2024-11-23 23:16:01,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 653 states and 984 transitions.
[2024-11-23 23:16:01,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-23 23:16:01,529 INFO L218 hiAutomatonCegarLoop]: Abstraction has 653 states and 984 transitions.
[2024-11-23 23:16:01,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states and 984 transitions.
[2024-11-23 23:16:01,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 610.
[2024-11-23 23:16:01,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 372 states have (on average 1.163978494623656) internal successors, (433), 396 states have internal predecessors, (433), 144 states have call successors, (158), 73 states have call predecessors, (158), 94 states have return successors, (326), 140 states have call predecessors, (326), 135 states have call successors, (326)
[2024-11-23 23:16:01,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 917 transitions.
[2024-11-23 23:16:01,592 INFO L240 hiAutomatonCegarLoop]: Abstraction has 610 states and 917 transitions.
[2024-11-23 23:16:01,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2024-11-23 23:16:01,594 INFO L425 stractBuchiCegarLoop]: Abstraction has 610 states and 917 transitions.
[2024-11-23 23:16:01,594 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============
[2024-11-23 23:16:01,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 610 states and 917 transitions.
[2024-11-23 23:16:01,601 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54
[2024-11-23 23:16:01,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-23 23:16:01,601 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-23 23:16:01,603 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:16:01,603 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2024-11-23 23:16:01,604 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 10;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#35#return;" "call #t~ret5 := fibo(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"<
[2024-11-23 23:16:01,604 INFO L749 eck$LassoCheckResult]: Loop: "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"<
[2024-11-23 23:16:01,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:16:01,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1746618538, now seen corresponding path program 1 times
[2024-11-23 23:16:01,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-11-23 23:16:01,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242752509]
[2024-11-23 23:16:01,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:16:01,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:16:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:01,970 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2024-11-23 23:16:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:02,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace
[2024-11-23 23:16:02,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242752509]
[2024-11-23 23:16:02,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242752509] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:16:02,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184447537]
[2024-11-23 23:16:02,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:16:02,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:16:02,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:02,022 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:16:02,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process
[2024-11-23 23:16:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:02,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-23 23:16:02,069 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:02,151 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:16:02,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184447537] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:16:02,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:16:02,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 24
[2024-11-23 23:16:02,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077159171]
[2024-11-23 23:16:02,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:16:02,469 INFO L752 eck$LassoCheckResult]: stem already infeasible
[2024-11-23 23:16:02,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:16:02,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1512524, now seen corresponding path program 2 times
[2024-11-23 23:16:02,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-11-23 23:16:02,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648055769]
[2024-11-23 23:16:02,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:16:02,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:16:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:16:02,473 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 23:16:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:16:02,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace
[2024-11-23 23:16:02,520 INFO L204 LassoAnalysis]: Preferences:
[2024-11-23 23:16:02,521 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-23 23:16:02,521 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-23 23:16:02,521 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-23 23:16:02,521 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-23 23:16:02,521 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:02,521 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-23 23:16:02,521 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-23 23:16:02,521 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration5_Loop
[2024-11-23 23:16:02,521 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-23 23:16:02,521 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-23 23:16:02,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:02,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:02,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:02,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:02,537 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:02,570 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-23 23:16:02,570 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-23 23:16:02,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:02,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:02,572 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:02,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process
[2024-11-23 23:16:02,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:16:02,574 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:16:02,586 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-23 23:16:02,586 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=0} Honda state: {fibo_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-23 23:16:02,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0
[2024-11-23 23:16:02,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:02,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:02,595 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:02,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process
[2024-11-23 23:16:02,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:16:02,597 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:16:02,609 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-23 23:16:02,609 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-23 23:16:02,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0
[2024-11-23 23:16:02,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:02,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:02,617 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:02,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process
[2024-11-23 23:16:02,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:16:02,620 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:16:02,631 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-23 23:16:02,631 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_~n=0} Honda state: {fibo_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-23 23:16:02,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0
[2024-11-23 23:16:02,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:02,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:02,640 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:02,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process
[2024-11-23 23:16:02,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:16:02,644 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:16:02,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0
[2024-11-23 23:16:02,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:02,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:02,673 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:02,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process
[2024-11-23 23:16:02,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-23 23:16:02,678 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:16:02,732 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-11-23 23:16:02,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0
[2024-11-23 23:16:02,735 INFO L204 LassoAnalysis]: Preferences:
[2024-11-23 23:16:02,735 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-23 23:16:02,735 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-23 23:16:02,735 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-23 23:16:02,735 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-11-23 23:16:02,735 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:02,735 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-23 23:16:02,735 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-23 23:16:02,735 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration5_Loop
[2024-11-23 23:16:02,735 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-23 23:16:02,736 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-23 23:16:02,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:02,741 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:02,743 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:02,745 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:02,753 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:02,789 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-23 23:16:02,789 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-11-23 23:16:02,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:02,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:02,794 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:02,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process
[2024-11-23 23:16:02,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:16:02,811 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:16:02,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:16:02,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:16:02,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:16:02,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:16:02,813 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:16:02,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:16:02,816 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-23 23:16:02,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0
[2024-11-23 23:16:02,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:02,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:02,825 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:02,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process
[2024-11-23 23:16:02,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:16:02,838 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:16:02,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:16:02,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:16:02,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:16:02,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:16:02,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:16:02,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:16:02,841 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-23 23:16:02,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0
[2024-11-23 23:16:02,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:02,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:02,848 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:02,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process
[2024-11-23 23:16:02,850 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:16:02,861 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:16:02,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:16:02,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:16:02,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:16:02,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:16:02,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:16:02,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:16:02,864 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-23 23:16:02,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0
[2024-11-23 23:16:02,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:02,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:02,872 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:02,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process
[2024-11-23 23:16:02,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:16:02,886 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:16:02,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:16:02,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:16:02,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:16:02,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:16:02,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:16:02,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:16:02,889 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-11-23 23:16:02,890 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2024-11-23 23:16:02,890 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2024-11-23 23:16:02,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:02,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:02,893 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:02,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process
[2024-11-23 23:16:02,896 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-11-23 23:16:02,896 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-11-23 23:16:02,896 INFO L474 LassoAnalysis]: Proved termination.
[2024-11-23 23:16:02,896 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fibo_#in~n) = 1*fibo_#in~n
Supporting invariants []
[2024-11-23 23:16:02,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0
[2024-11-23 23:16:02,903 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-11-23 23:16:02,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:16:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:02,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-23 23:16:02,992 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:03,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-23 23:16:03,114 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:16:03,143 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates
[2024-11-23 23:16:03,143 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 610 states and 917 transitions. cyclomatic complexity: 317 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)
[2024-11-23 23:16:03,221 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 610 states and 917 transitions. cyclomatic complexity: 317. 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 632 states and 939 transitions. Complement of second has 15 states.
[2024-11-23 23:16:03,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states
[2024-11-23 23:16:03,223 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)
[2024-11-23 23:16:03,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions.
[2024-11-23 23:16:03,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 45 letters. Loop has 4 letters.
[2024-11-23 23:16:03,224 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:16:03,224 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2024-11-23 23:16:03,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:16:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:03,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-23 23:16:03,307 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:03,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-23 23:16:03,428 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:03,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:16:03,458 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates
[2024-11-23 23:16:03,459 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 610 states and 917 transitions. cyclomatic complexity: 317 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)
[2024-11-23 23:16:03,534 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 610 states and 917 transitions. cyclomatic complexity: 317. 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 632 states and 939 transitions. Complement of second has 15 states.
[2024-11-23 23:16:03,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states
[2024-11-23 23:16:03,536 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)
[2024-11-23 23:16:03,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions.
[2024-11-23 23:16:03,536 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 45 letters. Loop has 4 letters.
[2024-11-23 23:16:03,536 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:16:03,536 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2024-11-23 23:16:03,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:16:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:03,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-23 23:16:03,620 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:03,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-23 23:16:03,742 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:03,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:16:03,764 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates
[2024-11-23 23:16:03,764 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 610 states and 917 transitions. cyclomatic complexity: 317 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)
[2024-11-23 23:16:03,862 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 610 states and 917 transitions. cyclomatic complexity: 317. 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 815 states and 1138 transitions. Complement of second has 19 states.
[2024-11-23 23:16:03,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states
[2024-11-23 23:16:03,864 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)
[2024-11-23 23:16:03,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions.
[2024-11-23 23:16:03,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 45 letters. Loop has 4 letters.
[2024-11-23 23:16:03,864 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:16:03,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 49 letters. Loop has 4 letters.
[2024-11-23 23:16:03,865 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:16:03,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 45 letters. Loop has 8 letters.
[2024-11-23 23:16:03,865 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:16:03,865 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 815 states and 1138 transitions.
[2024-11-23 23:16:03,881 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54
[2024-11-23 23:16:03,896 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 815 states to 666 states and 977 transitions.
[2024-11-23 23:16:03,896 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 237
[2024-11-23 23:16:03,898 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 246
[2024-11-23 23:16:03,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 666 states and 977 transitions.
[2024-11-23 23:16:03,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-23 23:16:03,900 INFO L218 hiAutomatonCegarLoop]: Abstraction has 666 states and 977 transitions.
[2024-11-23 23:16:03,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states and 977 transitions.
[2024-11-23 23:16:03,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 636.
[2024-11-23 23:16:03,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 396 states have (on average 1.154040404040404) internal successors, (457), 422 states have internal predecessors, (457), 144 states have call successors, (158), 73 states have call predecessors, (158), 96 states have return successors, (326), 140 states have call predecessors, (326), 135 states have call successors, (326)
[2024-11-23 23:16:03,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 941 transitions.
[2024-11-23 23:16:03,939 INFO L240 hiAutomatonCegarLoop]: Abstraction has 636 states and 941 transitions.
[2024-11-23 23:16:03,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM
[2024-11-23 23:16:03,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-23 23:16:03,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552
[2024-11-23 23:16:03,940 INFO L87 Difference]: Start difference. First operand 636 states and 941 transitions. Second operand has 24 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 16 states have internal predecessors, (40), 11 states have call successors, (13), 10 states have call predecessors, (13), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-23 23:16:04,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:16:04,375 INFO L93 Difference]: Finished difference Result 883 states and 1318 transitions.
[2024-11-23 23:16:04,375 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 883 states and 1318 transitions.
[2024-11-23 23:16:04,386 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54
[2024-11-23 23:16:04,398 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 883 states to 840 states and 1256 transitions.
[2024-11-23 23:16:04,398 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 290
[2024-11-23 23:16:04,399 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 296
[2024-11-23 23:16:04,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 840 states and 1256 transitions.
[2024-11-23 23:16:04,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-23 23:16:04,399 INFO L218 hiAutomatonCegarLoop]: Abstraction has 840 states and 1256 transitions.
[2024-11-23 23:16:04,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states and 1256 transitions.
[2024-11-23 23:16:04,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 789.
[2024-11-23 23:16:04,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 491 states have (on average 1.1344195519348268) internal successors, (557), 520 states have internal predecessors, (557), 190 states have call successors, (206), 98 states have call predecessors, (206), 108 states have return successors, (383), 170 states have call predecessors, (383), 178 states have call successors, (383)
[2024-11-23 23:16:04,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1146 transitions.
[2024-11-23 23:16:04,445 INFO L240 hiAutomatonCegarLoop]: Abstraction has 789 states and 1146 transitions.
[2024-11-23 23:16:04,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-11-23 23:16:04,446 INFO L425 stractBuchiCegarLoop]: Abstraction has 789 states and 1146 transitions.
[2024-11-23 23:16:04,446 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============
[2024-11-23 23:16:04,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 789 states and 1146 transitions.
[2024-11-23 23:16:04,451 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54
[2024-11-23 23:16:04,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-23 23:16:04,452 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-23 23:16:04,453 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [13, 13, 12, 11, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:16:04,453 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2024-11-23 23:16:04,453 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(12, 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 := 10;" "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);" "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);"
[2024-11-23 23:16:04,453 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);"
[2024-11-23 23:16:04,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:16:04,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1585625609, now seen corresponding path program 2 times
[2024-11-23 23:16:04,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-11-23 23:16:04,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921636566]
[2024-11-23 23:16:04,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:16:04,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:16:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:04,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0
[2024-11-23 23:16:04,931 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-11-23 23:16:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:04,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace
[2024-11-23 23:16:04,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921636566]
[2024-11-23 23:16:04,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921636566] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:16:04,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329093640]
[2024-11-23 23:16:04,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:16:04,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:16:04,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:04,941 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:16:04,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process
[2024-11-23 23:16:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:04,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-11-23 23:16:04,993 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:05,079 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:16:05,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329093640] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:16:05,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:16:05,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 23
[2024-11-23 23:16:05,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207410988]
[2024-11-23 23:16:05,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:16:05,364 INFO L752 eck$LassoCheckResult]: stem already infeasible
[2024-11-23 23:16:05,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:16:05,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1955414, now seen corresponding path program 3 times
[2024-11-23 23:16:05,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM
[2024-11-23 23:16:05,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895275523]
[2024-11-23 23:16:05,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:16:05,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:16:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:16:05,368 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-23 23:16:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-23 23:16:05,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace
[2024-11-23 23:16:05,426 INFO L204 LassoAnalysis]: Preferences:
[2024-11-23 23:16:05,426 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-23 23:16:05,426 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-23 23:16:05,426 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-23 23:16:05,426 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-23 23:16:05,426 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:05,426 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-23 23:16:05,426 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-23 23:16:05,426 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration6_Loop
[2024-11-23 23:16:05,426 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-23 23:16:05,426 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-23 23:16:05,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:05,434 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:05,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:05,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:05,491 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-23 23:16:05,491 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-23 23:16:05,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:05,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:05,493 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:05,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process
[2024-11-23 23:16:05,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-23 23:16:05,501 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:16:05,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0
[2024-11-23 23:16:05,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:05,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:05,536 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:05,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process
[2024-11-23 23:16:05,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-23 23:16:05,539 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-23 23:16:05,742 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-11-23 23:16:05,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0
[2024-11-23 23:16:05,746 INFO L204 LassoAnalysis]: Preferences:
[2024-11-23 23:16:05,746 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-23 23:16:05,746 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-23 23:16:05,746 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-23 23:16:05,746 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-11-23 23:16:05,746 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:05,747 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-23 23:16:05,747 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-23 23:16:05,747 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_10-2.c_Iteration6_Loop
[2024-11-23 23:16:05,747 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-23 23:16:05,747 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-23 23:16:05,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:05,749 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:05,756 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:05,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-23 23:16:05,808 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-23 23:16:05,808 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-11-23 23:16:05,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:05,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:05,812 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:05,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process
[2024-11-23 23:16:05,816 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
[2024-11-23 23:16:05,827 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:16:05,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:16:05,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:16:05,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:16:05,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:16:05,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:16:05,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:16:05,829 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-23 23:16:05,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0
[2024-11-23 23:16:05,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:05,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:05,837 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:05,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process
[2024-11-23 23:16:05,840 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-23 23:16:05,851 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-23 23:16:05,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-23 23:16:05,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-23 23:16:05,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-23 23:16:05,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-23 23:16:05,852 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-23 23:16:05,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-23 23:16:05,855 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-11-23 23:16:05,860 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2024-11-23 23:16:05,860 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero.
[2024-11-23 23:16:05,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-23 23:16:05,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:16:05,864 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-23 23:16:05,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process
[2024-11-23 23:16:05,866 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-11-23 23:16:05,866 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-11-23 23:16:05,866 INFO L474 LassoAnalysis]: Proved termination.
[2024-11-23 23:16:05,866 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fibo_~n) = 1*fibo_~n
Supporting invariants []
[2024-11-23 23:16:05,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0
[2024-11-23 23:16:05,873 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-11-23 23:16:05,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:16:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:05,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-23 23:16:05,962 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:06,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-23 23:16:06,096 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:06,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:16:06,127 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
[2024-11-23 23:16:06,127 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 789 states and 1146 transitions. cyclomatic complexity: 367 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)
[2024-11-23 23:16:06,189 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 789 states and 1146 transitions. cyclomatic complexity: 367. 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 814 states and 1172 transitions. Complement of second has 18 states.
[2024-11-23 23:16:06,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states
[2024-11-23 23:16:06,190 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)
[2024-11-23 23:16:06,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions.
[2024-11-23 23:16:06,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 56 letters. Loop has 4 letters.
[2024-11-23 23:16:06,190 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:16:06,190 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2024-11-23 23:16:06,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:16:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:06,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-23 23:16:06,289 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:16:06,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-23 23:16:06,431 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:16:06,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:16:06,467 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
[2024-11-23 23:16:06,468 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 789 states and 1146 transitions. cyclomatic complexity: 367 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)
[2024-11-23 23:16:06,576 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 789 states and 1146 transitions. cyclomatic complexity: 367. 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 1034 states and 1489 transitions. Complement of second has 22 states.
[2024-11-23 23:16:06,576 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
[2024-11-23 23:16:06,577 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)
[2024-11-23 23:16:06,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 15 transitions.
[2024-11-23 23:16:06,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 56 letters. Loop has 4 letters.
[2024-11-23 23:16:06,577 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:16:06,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 60 letters. Loop has 4 letters.
[2024-11-23 23:16:06,578 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:16:06,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 56 letters. Loop has 8 letters.
[2024-11-23 23:16:06,578 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-23 23:16:06,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1034 states and 1489 transitions.
[2024-11-23 23:16:06,595 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54
[2024-11-23 23:16:06,610 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1034 states to 961 states and 1408 transitions.
[2024-11-23 23:16:06,610 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 302
[2024-11-23 23:16:06,611 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 330
[2024-11-23 23:16:06,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 961 states and 1408 transitions.
[2024-11-23 23:16:06,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-23 23:16:06,612 INFO L218 hiAutomatonCegarLoop]: Abstraction has 961 states and 1408 transitions.
[2024-11-23 23:16:06,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states and 1408 transitions.
[2024-11-23 23:16:06,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 941.
[2024-11-23 23:16:06,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 591 states have (on average 1.125211505922166) internal successors, (665), 627 states have internal predecessors, (665), 223 states have call successors, (257), 123 states have call predecessors, (257), 127 states have return successors, (462), 190 states have call predecessors, (462), 211 states have call successors, (462)
[2024-11-23 23:16:06,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1384 transitions.
[2024-11-23 23:16:06,647 INFO L240 hiAutomatonCegarLoop]: Abstraction has 941 states and 1384 transitions.
[2024-11-23 23:16:06,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM
[2024-11-23 23:16:06,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-23 23:16:06,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506
[2024-11-23 23:16:06,648 INFO L87 Difference]: Start difference. First operand 941 states and 1384 transitions. Second operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 13 states have internal predecessors, (38), 11 states have call successors, (12), 12 states have call predecessors, (12), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-23 23:16:07,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:16:07,046 INFO L93 Difference]: Finished difference Result 550 states and 652 transitions.
[2024-11-23 23:16:07,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 550 states and 652 transitions.
[2024-11-23 23:16:07,051 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2024-11-23 23:16:07,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 550 states to 0 states and 0 transitions.
[2024-11-23 23:16:07,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2024-11-23 23:16:07,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2024-11-23 23:16:07,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2024-11-23 23:16:07,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2024-11-23 23:16:07,052 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-23 23:16:07,052 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-23 23:16:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2024-11-23 23:16:07,053 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-23 23:16:07,053 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============
[2024-11-23 23:16:07,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2024-11-23 23:16:07,053 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2024-11-23 23:16:07,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2024-11-23 23:16:07,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 11:16:07 BoogieIcfgContainer
[2024-11-23 23:16:07,061 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2024-11-23 23:16:07,062 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-23 23:16:07,062 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-23 23:16:07,062 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-23 23:16:07,063 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:15:53" (3/4) ...
[2024-11-23 23:16:07,065 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-11-23 23:16:07,066 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-23 23:16:07,066 INFO L158 Benchmark]: Toolchain (without parser) took 14152.18ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.9MB in the beginning and 159.6MB in the end (delta: -65.7MB). Peak memory consumption was 171.2MB. Max. memory is 16.1GB.
[2024-11-23 23:16:07,067 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 167.8MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:16:07,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.82ms. Allocated memory is still 117.4MB. Free memory was 93.9MB in the beginning and 83.5MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 23:16:07,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.28ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 82.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:16:07,067 INFO L158 Benchmark]: Boogie Preprocessor took 38.08ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.6MB in the end (delta: 755.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 23:16:07,068 INFO L158 Benchmark]: RCFGBuilder took 266.87ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 72.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 23:16:07,068 INFO L158 Benchmark]: BuchiAutomizer took 13552.36ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 72.1MB in the beginning and 159.6MB in the end (delta: -87.5MB). Peak memory consumption was 146.1MB. Max. memory is 16.1GB.
[2024-11-23 23:16:07,068 INFO L158 Benchmark]: Witness Printer took 3.83ms. Allocated memory is still 352.3MB. Free memory was 159.6MB in the beginning and 159.6MB in the end (delta: 69.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-23 23:16:07,070 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26ms. Allocated memory is still 167.8MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 247.82ms. Allocated memory is still 117.4MB. Free memory was 93.9MB in the beginning and 83.5MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 35.28ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 82.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 38.08ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.6MB in the end (delta: 755.1kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 266.87ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 72.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* BuchiAutomizer took 13552.36ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 72.1MB in the beginning and 159.6MB in the end (delta: -87.5MB). Peak memory consumption was 146.1MB. Max. memory is 16.1GB.
* Witness Printer took 3.83ms. Allocated memory is still 352.3MB. Free memory was 159.6MB in the beginning and 159.6MB in the end (delta: 69.0kB). Peak memory consumption was 8.4MB. 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 24 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 13.4s and 7 iterations. TraceHistogramMax:13. Analysis of lassos took 6.6s. Construction of modules took 1.5s. Büchi inclusion checks took 4.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 228 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, 566 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 541 mSDsluCounter, 765 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 528 mSDsCounter, 331 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1737 IncrementalHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 331 mSolverCounterUnsat, 237 mSDtfsCounter, 1737 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: 41ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s
- TerminationAnalysisResult: Termination proven
Buchi Automizer proved that your program is terminating
RESULT: Ultimate proved your program to be correct!
[2024-11-23 23:16:07,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0
[2024-11-23 23:16:07,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0
[2024-11-23 23:16:07,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0
[2024-11-23 23:16:07,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0
[2024-11-23 23:16:07,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2024-11-23 23:16:08,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-11-23 23:16:08,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2024-11-23 23:16:08,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7979694-ab7d-4dee-88d2-b0e6b71c1284/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE